Yamaha yz490 bore and stroke

Free delivery for many products! 1984 Yamaha YZ490 - big bore 2 stroke. The 1983 Yamaha YZ490 was a great big bore two-stroke that really lit up when you hit the top-end. The engine was a bit sluggish in the bottom end, but excelled in the higher RPMs. This made the YZ490 great for longer tracks and hare scrambles. Yamaha YZ100, YZ125, YZ175 ...Apr 3, 2013 - Yamaha YZ490 - the last big bore from Yamaha. I think 1983. Photo courtesy of Vintage Factory ... 2 Stroke Dirt Bike. Motocross Photography. Off Road ... Mar 29, 2013 · 1982 XC 430 HusqvarnaAA Class. While looking through some old part catalogs tonight,I stumbled upon the specs of the 1983-1990 Yamaha YZ490 connecting rod.The YZ/IT 465 and WR500's might use it also.Although it is 2mm longer {at 137mm} than most 1975-up air cooled 250/360/390/420/430 rods,it does have the same 25mm diameter X 64mm long {would ... The company's second ever motorcycle, the YD-1 of 1957, was a 250cc two-stroke twin, and . Yamaha's commitment to 250 and 350cc racing during the 1960s, 70s and 80s. A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a power cycle with two strokes (up and down movements) of the piston during one ... Nov 30, 2010 · Make / Model Specific. Yamaha Motorcycles. Yamaha 2 Stroke. yz490 bore. Nov 30, 2010 · Make / Model Specific. Yamaha Motorcycles. Yamaha 2 Stroke. yz490 bore. 1987 brought some minor updates, including a redesigned head and 43mm Kayaba Travel Control Valve forks. It also still featured Yamaha’s Energy Induction System, the first 2-stroke “boost bottle” in the industry that they debuted back in 1980. This example is VIN: JYA2HJ004HA001631, Engine #: 24J-001631. It was mechanically restored by ... Nov 23, 2019 · Rear: expanding brake (drum brake) Weight. 235.89 pounds (107.0 Kg) ( dry ), Recommended Oil. Yamalube 10w-40. Manuals. Service Manual. The Yamaha YZ490 was a single cylinder, two-stroke All motorcycle produced by Yamaha in 1987. Claimed horsepower was 53.77 HP (40.1 KW) @ 7000 RPM. The Yamaha YZ490 was a single cylinder, two-stroke All motorcycle produced by Yamaha in 1987. Claimed horsepower was 53.77 HP (40.1 KW) @ 7000 RPM.. Engine [edit | edit source]. The engine was a air cooled single cylinder, two-stroke.. Drive [edit | edit source]. The bike has a 5-speed transmission. Power was moderated via the wet plate. Chassis [edit | edit source] ...For this week's GP's Classic Steel we are going to take a look back at the machine that took Broc Glover to his last 500 National Motocross title, the 1985 Yamaha YZ490. In 1985, the Open class was still considered one of the most prestigious divisions in motocross. Honda, Kawasaki, Husqvarna, KTM and even Cagiva, all produced liquid-cooled ...The fact that Broc won the 1985 AMA 500 National Championship on what many experts consider one of the worst motocross machines ever built is testament to his talent. The Yamaha YZ490 was introduced in 1982 (following in the footsteps of the YZ465). Sadly, the 490 was heavier than the 465, nowhere near as reliable, difficult to start, had grim ... I have a 1983 yamaha yz 490 for sale Motor was sent out to have the head ported by the best in the business Forward Motion, a Millennium Technologies LLC Company 1404 Pilgrim Road, Plymouth, WI 53073 making it run better on pump gas. Cylinder was bored over .020 and this was the first bore from original.. "/>The Yamaha YZ490 was a single cylinder, two-stroke All motorcycle produced by Yamaha in 1987. Claimed horsepower was 53.77 HP (40.1 KW) @ 7000 RPM.. Engine [edit | edit source]. The engine was a air cooled single cylinder, two-stroke.. Drive [edit | edit source]. The bike has a 5-speed transmission. Power was moderated via the wet plate. Chassis [edit | edit source] ...Oct 26, 2017 · 1. For this edition of GP’s Classic Steel, we are going to take a look back at the last of Yamaha’s big-bore two-stroke YZs, the 1990 YZ490. After languishing in Yamaha’s lineup (and in showrooms) for half a decade with only minor updates, Yamaha finally put the mighty YZ490 out to pasture in 1990. Photo Credit: Yamaha. 1988 Yamaha YZ490 Vintage Big Bore MX Bike - $4,200 (Hamilton) Warning! NOT for Beginners. Never Raced, Not Beat, well cared for. 1988 Yamaha YZ490 Vintage MX Bike. Still on the original bore. 1 Re-ring. Runs Super Strong. This bike will win Vintage MX Races if you got the balls. Believe it or not Broc Glover raced a stock YZ490 and to everyone ... The fact that Broc won the 1985 AMA 500 National Championship on what many experts consider one of the worst motocross machines ever built is testament to his talent. The Yamaha YZ490 was introduced in 1982 (following in the footsteps of the YZ465). Sadly, the 490 was heavier than the 465, nowhere near as reliable, difficult to start, had grim ... Get the best deal for Motorcycle Big Bore & Top End Kits for Yamaha YZ490 from the largest online selection at eBay.com.sg. Browse our daily deals for even more savings! Free shipping on many items! A 500cc dirt bike is good if you're an experienced rider that wants the nostalgia of riding a big bore 2 stroke dirt bike, or a more comfortable 4 stroke enduro bike for longer rides. ... Yamaha YZ490 and Suzuki RM360. 4 stroke 500. There are modern 500cc dirt bikes that have a 4 stroke engine. KTM has the 500 EXC-F and Husqvarna has the 501.Nov 04, 2010 · I had 4 yz 490's in the 1980's. They were a1982,1983,1985 and 1988. The first two ran very good with proper jetting.The last two were very tough to jet and extremely affected by temp. and other weather factors. 1982 Yamaha Yz490 Big Bore 2 Stroke Bike!! A few short idle clips and revs and also a nice power band pull on the road! This is a classic 1st year yz490 from... Jan 17, 2011 · 1987 yamaha yz490 runs good. this is a rare bike, it is a mono cross bike with a big bore motor. Two stroke big bore motor, they dont make em like this anymore. Very fast motor, somewhere around 50 hp. Extremely fast bike!!!!!Jan 07, 2021 · The 1985 model was white with red and blue graphics. If you are looking at buying a vintage 1985 YZ490, look for the front disc brake, gold Takasago rims, BASS system and stock boost bottle ... I have a 1983 yamaha yz 490 for sale Motor was sent out to have the head ported by the best in the business Forward Motion, a Millennium Technologies LLC Company 1404 Pilgrim Road, Plymouth, WI 53073 making it run better on pump gas. Cylinder was bored over .020 and this was the first bore from original.. "/>Nov 04, 2010 · I had 4 yz 490's in the 1980's. They were a1982,1983,1985 and 1988. The first two ran very good with proper jetting.The last two were very tough to jet and extremely affected by temp. and other weather factors. 1982 Yamaha Yz490 Big Bore 2 Stroke Bike!! A few short idle clips and revs and also a nice power band pull on the road! This is a classic 1st year yz490 from...The fact that Broc won the 1985 AMA 500 National Championship on what many experts consider one of the worst motocross machines ever built is testament to his talent. The Yamaha YZ490 was introduced in 1982 (following in the footsteps of the YZ465). Sadly, the 490 was heavier than the 465, nowhere near as reliable, difficult to start, had grim ... sony tv red line on screen Nov 12, 2008 · Posted November 14, 2008. The YZ490 that Broc Glover rode in 85 was really close to a stock bike.He beat Dave Bailey on the trickest works Honda ever produced in the history of motocross.Glover is an amazing rider and the YZ490 couldnt have been all that bad. The fact that Broc won the 1985 AMA 500 National Championship on what many experts consider one of the worst motocross machines ever built is testament to his talent. The Yamaha YZ490 was introduced in 1982 (following in the footsteps of the YZ465). Sadly, the 490 was heavier than the 465, nowhere near as reliable, difficult to start, had grim ... Get the best deal for Motorcycle Big Bore & Top End Kits for Yamaha YZ490 from the largest online selection at eBay.com.sg. Browse our daily deals for even more savings! Free shipping on many items! Get the best deal for Motorcycle Big Bore & Top End Kits for Yamaha YZ490 from the largest online selection at eBay.com.sg. Browse our daily deals for even more savings! Free shipping on many items! YZ490 1984-1985 (2-Stroke) Yamaha. 1984-1985 Yamaha YZ490 Custom Pre-Printed Red Background - White Pinstripe by Factory Ride. Regular price: $55.99. Sale price: $39.75. Jan 17, 2011 · 1987 yamaha yz490 runs good. this is a rare bike, it is a mono cross bike with a big bore motor. Two stroke big bore motor, they dont make em like this anymore. Very fast motor, somewhere around 50 hp. Extremely fast bike!!!!!3 cylinder 2 stroke Part1 Full Throttle @ WOT . Full Trim,no "cavitation"/ventilation 37.5 knots at 5300 Rpm. ( I need a Jack Plate )Full Throttle @ WOT,,,LO. 1987 brought some minor updates, including a redesigned head and 43mm Kayaba Travel Control Valve forks. It also still featured Yamaha’s Energy Induction System, the first 2-stroke “boost bottle” in the industry that they debuted back in 1980. This example is VIN: JYA2HJ004HA001631, Engine #: 24J-001631. It was mechanically restored by ... Nov 12, 2008 · Posted November 14, 2008. The YZ490 that Broc Glover rode in 85 was really close to a stock bike.He beat Dave Bailey on the trickest works Honda ever produced in the history of motocross.Glover is an amazing rider and the YZ490 couldnt have been all that bad. Nov 30, 2010 · Make / Model Specific. Yamaha Motorcycles. Yamaha 2 Stroke. yz490 bore. Jan 07, 2021 · The 1985 model was white with red and blue graphics. If you are looking at buying a vintage 1985 YZ490, look for the front disc brake, gold Takasago rims, BASS system and stock boost bottle ... The Yamaha YZ490 model is a Cross / motocross bike manufactured by Yamaha . In this version sold from year 1987 , the dry weight is 107.0 kg (236.0 pounds) and it is equipped with a Single cylinder, two-stroke motor. ... Bore x Stroke - Compression Ratio - Number of valves per cylinder - Camshaft Valvetrain Configuration - Maximum power ...Jan 17, 2011 · 1987 yamaha yz490 runs good. this is a rare bike, it is a mono cross bike with a big bore motor. Two stroke big bore motor, they dont make em like this anymore. Very fast motor, somewhere around 50 hp. Extremely fast bike!!!!!1982 Yamaha Yz490 Big Bore 2 Stroke Bike!! A few short idle clips and revs and also a nice power band pull on the road! This is a classic 1st year yz490 from...Although their was still a hint of ping, ring & ding, Yamaha engineers had been busy making modifications to the cylinder head, exhaust & ignition to produced a motor that had extremely good power characteristics right through the range. This revitalised YZ490 motor, now painted silver, was slotted into a new frame that had been based on a ... Oct 26, 2017 · 1. For this edition of GP’s Classic Steel, we are going to take a look back at the last of Yamaha’s big-bore two-stroke YZs, the 1990 YZ490. After languishing in Yamaha’s lineup (and in showrooms) for half a decade with only minor updates, Yamaha finally put the mighty YZ490 out to pasture in 1990. Photo Credit: Yamaha. A 500cc dirt bike is good if you're an experienced rider that wants the nostalgia of riding a big bore 2 stroke dirt bike, or a more comfortable 4 stroke enduro bike for longer rides. ... Yamaha YZ490 and Suzuki RM360. 4 stroke 500. There are modern 500cc dirt bikes that have a 4 stroke engine. KTM has the 500 EXC-F and Husqvarna has the 501. morro bay beachfront rentals Big Bore two strokes rule the straightaways of the world ! Mar 29, 2013 · 1982 XC 430 HusqvarnaAA Class. While looking through some old part catalogs tonight,I stumbled upon the specs of the 1983-1990 Yamaha YZ490 connecting rod.The YZ/IT 465 and WR500's might use it also.Although it is 2mm longer {at 137mm} than most 1975-up air cooled 250/360/390/420/430 rods,it does have the same 25mm diameter X 64mm long {would ... Oct 26, 2017 · 1. For this edition of GP’s Classic Steel, we are going to take a look back at the last of Yamaha’s big-bore two-stroke YZs, the 1990 YZ490. After languishing in Yamaha’s lineup (and in showrooms) for half a decade with only minor updates, Yamaha finally put the mighty YZ490 out to pasture in 1990. Photo Credit: Yamaha. Im putting a new piston in my 1982 yz 490 but i dont know if it has been bored over size so I was wondering if anyone knew the stock bore for it. any help would be much appreciated. Jump to content Yamaha 2 StrokeThe Yamaha YZ490 model is a Cross / motocross bike manufactured by Yamaha . In this version sold from year 1987 , the dry weight is 107.0 kg (236.0 pounds) and it is equipped with a Single cylinder, two-stroke motor. ... Bore x Stroke - Compression Ratio - Number of valves per cylinder - Camshaft Valvetrain Configuration - Maximum power ...The chart below is from the Yamaha Service Manual for the Yamaha DT250B and DT400B. The chart is for stud/bolt sizes with standard I.S.) pitch threads. For bolts with other thread pitches, consult your manual. Torque specs call for clean, dry threads. Components such as the cylinder or cylinder head should be at room temperature prior to torquing. Purchase the Wiseco Yamaha YZ 80 19761980 Piston 50.00mm from SportbikeTrackGear.com. Get the lowest price, free shipping deal, easy exchanges and no restocking fees - Guaranteed! ... Specifications: Product Name: Piston; Piston Material: Forged / Aluminum Alloy; ... Wiseco Yamaha YZ 250 1980 -1982 Piston 1.25 mm. $207.85 $197.46. 3 cylinder 2 stroke Part1 Full Throttle @ WOT . Full Trim,no "cavitation"/ventilation 37.5 knots at 5300 Rpm. ( I need a Jack Plate )Full Throttle @ WOT,,,LO. The fact that Broc won the 1985 AMA 500 National Championship on what many experts consider one of the worst motocross machines ever built is testament to his talent. The Yamaha YZ490 was introduced in 1982 (following in the footsteps of the YZ465). Sadly, the 490 was heavier than the 465, nowhere near as reliable, difficult to start, had grim ... 1. For this edition of GP's Classic Steel, we are going to take a look back at the last of Yamaha's big-bore two-stroke YZs, the 1990 YZ490. After languishing in Yamaha's lineup (and in showrooms) for half a decade with only minor updates, Yamaha finally put the mighty YZ490 out to pasture in 1990. Photo Credit: Yamaha.Apr 3, 2013 - Yamaha YZ490 - the last big bore from Yamaha. I think 1983. Photo courtesy of Vintage Factory ... 2 Stroke Dirt Bike. Motocross Photography. Off Road ... YZ490 1984-1985 (2-Stroke) Yamaha. 1984-1985 Yamaha YZ490 Custom Pre-Printed Red Background - White Pinstripe by Factory Ride. Regular price: $55.99. Sale price: $39.75. 3 cylinder 2 stroke Part1 Full Throttle @ WOT . Full Trim,no "cavitation"/ventilation 37.5 knots at 5300 Rpm. ( I need a Jack Plate )Full Throttle @ WOT,,,LO. Oct 21, 2014 · For this week’s GP’s Classic Steel we are going to take a look back at the machine that took Broc Glover to his last 500 National Motocross title, the 1985 Yamaha YZ490. In 1985, the Open class was still considered one of the most prestigious divisions in motocross. Honda, Kawasaki, Husqvarna, KTM and even Cagiva, all produced liquid-cooled ... 3.6 Check out the detailed rating of off-road capabilities, engine performance, maintenance cost, etc. Compare with any other bike. Engine and transmission. Displacement. 487.0 ccm (29.72 cubic inches) Engine type. Single cylinder, two-stroke. Power. 35.0 HP (25.5 kW )) @ 6000 RPM. Torque. The fact that Broc won the 1985 AMA 500 National Championship on what many experts consider one of the worst motocross machines ever built is testament to his talent. The Yamaha YZ490 was introduced in 1982 (following in the footsteps of the YZ465). Sadly, the 490 was heavier than the 465, nowhere near as reliable, difficult to start, had grim ... Nov 30, 2010 · Make / Model Specific. Yamaha Motorcycles. Yamaha 2 Stroke. yz490 bore. 1982 Yamaha Yz490 Big Bore 2 Stroke Bike!! A few short idle clips and revs and also a nice power band pull on the road! This is a classic 1st year yz490 from...The 1991-1/2 Yamaha WR500 engine was basically the same engine that first surfaced eight years earlier on the YZ490 ; however, the air-cooled, boost-bottled, five-speed,. Yamaha (2-cycle) Model: Bore x Stroke (mm) Displ. (cc) Bore size mm: Bore Size inches: Wiseco Kit Part # Bore ... YZ490 J, K 1982-83 IT490, 1983-84: 87 x 82: 487: 87 ... For this week's GP's Classic Steel we are going to take a look back at the machine that took Broc Glover to his last 500 National Motocross title, the 1985 Yamaha YZ490. In 1985, the Open class was still considered one of the most prestigious divisions in motocross. Honda, Kawasaki, Husqvarna, KTM and even Cagiva, all produced liquid-cooled ...3.3 Check out the detailed rating of off-road capabilities, engine performance, maintenance cost, etc. Compare with any other bike. Engine and transmission. Displacement. 490.0 ccm (29.90 cubic inches) Engine type. Single cylinder, two-stroke. Power. 55.0 HP (40.1 kW )) @ 7000 RPM. Fuel system. Jul 01, 1984 · The YZ490—and before that, the YZ465—might have been hurting in one area or another, but horsepower hasn’t been one of them. And the 1984 YZ490 is no exception; in fact, not only might it be the fastest Open-class machine of the year, it could be the fastest motocross bike ever built. Yamaha didn’t have to build an allnew motorcycle to ... Mar 29, 2013 · 1982 XC 430 HusqvarnaAA Class. While looking through some old part catalogs tonight,I stumbled upon the specs of the 1983-1990 Yamaha YZ490 connecting rod.The YZ/IT 465 and WR500's might use it also.Although it is 2mm longer {at 137mm} than most 1975-up air cooled 250/360/390/420/430 rods,it does have the same 25mm diameter X 64mm long {would ... 3 cylinder 2 stroke Part1 Full Throttle @ WOT . Full Trim,no "cavitation"/ventilation 37.5 knots at 5300 Rpm. ( I need a Jack Plate )Full Throttle @ WOT,,,LO. Oct 26, 2017 · 1. For this edition of GP’s Classic Steel, we are going to take a look back at the last of Yamaha’s big-bore two-stroke YZs, the 1990 YZ490. After languishing in Yamaha’s lineup (and in showrooms) for half a decade with only minor updates, Yamaha finally put the mighty YZ490 out to pasture in 1990. Photo Credit: Yamaha. 1. For this edition of GP's Classic Steel, we are going to take a look back at the last of Yamaha's big-bore two-stroke YZs, the 1990 YZ490. After languishing in Yamaha's lineup (and in showrooms) for half a decade with only minor updates, Yamaha finally put the mighty YZ490 out to pasture in 1990. Photo Credit: Yamaha.Oct 26, 2017 · 1. For this edition of GP’s Classic Steel, we are going to take a look back at the last of Yamaha’s big-bore two-stroke YZs, the 1990 YZ490. After languishing in Yamaha’s lineup (and in showrooms) for half a decade with only minor updates, Yamaha finally put the mighty YZ490 out to pasture in 1990. Photo Credit: Yamaha. Apr 21, 2022 · Yamaha yz 490 very good condition Running wel Yamaha yz490 For Sale - 2-stroke Motorcycles and Parts Yamaha yz490 - On our marketplace you can advertise your 2-stroke motorcycle or parts for sale, or you can find that special piece that you are looking for. Big Bore two strokes rule the straightaways of the world ! Jan 17, 2011 · 1987 yamaha yz490 runs good. this is a rare bike, it is a mono cross bike with a big bore motor. Two stroke big bore motor, they dont make em like this anymore. Very fast motor, somewhere around 50 hp. Extremely fast bike!!!!!1982 Yamaha Yz490 Big Bore 2 Stroke Bike!! A few short idle clips and revs and also a nice power band pull on the road! This is a classic 1st year yz490 from...Jan 07, 2021 · The 1985 model was white with red and blue graphics. If you are looking at buying a vintage 1985 YZ490, look for the front disc brake, gold Takasago rims, BASS system and stock boost bottle ... 1982 Yamaha Yz490 Big Bore 2 Stroke Bike!! A few short idle clips and revs and also a nice power band pull on the road! This is a classic 1st year yz490 from... Nov 30, 2010 · Make / Model Specific. Yamaha Motorcycles. Yamaha 2 Stroke. yz490 bore. Mar 29, 2013 · 1982 XC 430 HusqvarnaAA Class. While looking through some old part catalogs tonight,I stumbled upon the specs of the 1983-1990 Yamaha YZ490 connecting rod.The YZ/IT 465 and WR500's might use it also.Although it is 2mm longer {at 137mm} than most 1975-up air cooled 250/360/390/420/430 rods,it does have the same 25mm diameter X 64mm long {would ... 1988 Yamaha YZ490 Vintage Big Bore MX Bike - $4,200 (Hamilton) Warning! NOT for Beginners. Never Raced, Not Beat, well cared for. 1988 Yamaha YZ490 Vintage MX Bike. Still on the original bore. 1 Re-ring. Runs Super Strong. This bike will win Vintage MX Races if you got the balls. Believe it or not Broc Glover raced a stock YZ490 and to everyone ... Get the latest Specifications for Yamaha YZ 490 1990 Motorcycle from mbike.com! Mbike - Catalogue. Community. ... Bore × stroke : 3.43 inch × 3.23 inch (oversquare - shortstroke) Throttle: Cable operated: Valves: Valves per cylinder: 4: Fuel and ignition: Sparks per cylinder: 1:. 1982 Yamaha Yz490 Big Bore 2 Stroke Bike!! A few short idle clips and revs and also a nice power band pull on the road! This is a classic 1st year yz490 from... Mar 29, 2013 · 1982 XC 430 HusqvarnaAA Class. While looking through some old part catalogs tonight,I stumbled upon the specs of the 1983-1990 Yamaha YZ490 connecting rod.The YZ/IT 465 and WR500's might use it also.Although it is 2mm longer {at 137mm} than most 1975-up air cooled 250/360/390/420/430 rods,it does have the same 25mm diameter X 64mm long {would ... 1982 Yamaha Yz490 Big Bore 2 Stroke Bike!! A few short idle clips and revs and also a nice power band pull on the road! This is a classic 1st year yz490 from... Get the best deal for Motorcycle Big Bore & Top End Kits for Yamaha YZ490 from the largest online selection at eBay.com.sg. Browse our daily deals for even more savings! Free shipping on many items! Mar 29, 2013 · 1982 XC 430 HusqvarnaAA Class. While looking through some old part catalogs tonight,I stumbled upon the specs of the 1983-1990 Yamaha YZ490 connecting rod.The YZ/IT 465 and WR500's might use it also.Although it is 2mm longer {at 137mm} than most 1975-up air cooled 250/360/390/420/430 rods,it does have the same 25mm diameter X 64mm long {would ... For this edition of GP's Classic Steel, we are going to take a look back at the last of Yamaha's big-bore two-stroke YZs, the 1990 YZ490. After languishing in Yamaha's lineup (and in showrooms) for half a decade with only minor updates, Yamaha finally put the mighty YZ490 out to pasture in 1990. Photo Credit: Yamaha. Wiseco Pro-Lite 2 ...Current Bike(s): 1998 harley flh, 1994 fxdlr, 2000 redneck mutant buell,1975 yamaha dt100, 1978 yamaha yz80, 1974 yamaha gt80, 1974 yamaha gt80, 1997 kawasaki kx125, 1988 suzuki lt230s 4 wheeler, 1985 suzuki lt125, 1992 polaris trailboss 250 4x4, 1999 arctic cat 300 4x4. 1978 Yamaha Prices, Values and Specs Select any 1978 Yamaha model . 1988 Yamaha YZ490 Vintage Big Bore MX Bike - $4,200 (Hamilton) Warning! NOT for Beginners. Never Raced, Not Beat, well cared for. 1988 Yamaha YZ490 Vintage MX Bike. Still on the original bore. 1 Re-ring. Runs Super Strong. This bike will win Vintage MX Races if you got the balls. Believe it or not Broc Glover raced a stock YZ490 and to everyone ... Get the latest Specifications for Yamaha YZ 490 1990 Motorcycle from mbike.com! Mbike - Catalogue. Community. ... Bore × stroke : 3.43 inch × 3.23 inch (oversquare - shortstroke) Throttle: Cable operated: Valves: Valves per cylinder: 4: Fuel and ignition: Sparks per cylinder: 1:. 1988 Yamaha YZ490 Vintage Big Bore MX Bike - $4,200 (Hamilton) Warning! NOT for Beginners. Never Raced, Not Beat, well cared for. 1988 Yamaha YZ490 Vintage MX Bike. Still on the original bore. 1 Re-ring. Runs Super Strong. This bike will win Vintage MX Races if you got the balls. Believe it or not Broc Glover raced a stock YZ490 and to everyone ... Get the latest Specifications for Yamaha YZ 490 1990 Motorcycle from mbike.com! Mbike - Catalogue. Community. ... Bore × stroke : 3.43 inch × 3.23 inch (oversquare - shortstroke) Throttle: Cable operated: Valves: Valves per cylinder: 4: Fuel and ignition: Sparks per cylinder: 1:. The fact that Broc won the 1985 AMA 500 National Championship on what many experts consider one of the worst motocross machines ever built is testament to his talent. The Yamaha YZ490 was introduced in 1982 (following in the footsteps of the YZ465). Sadly, the 490 was heavier than the 465, nowhere near as reliable, difficult to start, had grim ... 1982 Yamaha Yz490 Big Bore 2 Stroke Bike!! A few short idle clips and revs and also a nice power band pull on the road! This is a classic 1st year yz490 from...Jan 07, 2021 · The 1985 model was white with red and blue graphics. If you are looking at buying a vintage 1985 YZ490, look for the front disc brake, gold Takasago rims, BASS system and stock boost bottle ... The Yamaha YZ490 was a single cylinder, two-stroke All motorcycle produced by Yamaha in 1987. Claimed horsepower was 53.77 HP (40.1 KW) @ 7000 RPM.. Engine [edit | edit source]. The engine was a air cooled single cylinder, two-stroke.. Drive [edit | edit source]. The bike has a 5-speed transmission. Power was moderated via the wet plate. Chassis [edit | edit source] ...Details. Resources. Baddest Motor on the block. The 588 Big Bore kit makes a perfect marriage with the Raze Wingman Kit. 81 HP on mild pump gas. 80 HR top end rebuild schedule. Snowbike Tunes Pump Gas & Race Fuels. Dirt Hill Climb Tunes. Nitrous (Ninja Backup) For this week's GP's Classic Steel we are going to take a look back at the machine that took Broc Glover to his last 500 National Motocross title, the 1985 Yamaha YZ490. In 1985, the Open class was still considered one of the most prestigious divisions in motocross. Honda, Kawasaki, Husqvarna, KTM and even Cagiva, all produced liquid-cooled ...Oct 26, 2017 · 1. For this edition of GP’s Classic Steel, we are going to take a look back at the last of Yamaha’s big-bore two-stroke YZs, the 1990 YZ490. After languishing in Yamaha’s lineup (and in showrooms) for half a decade with only minor updates, Yamaha finally put the mighty YZ490 out to pasture in 1990. Photo Credit: Yamaha. Get the best deal for Motorcycle Big Bore & Top End Kits for Yamaha YZ490 from the largest online selection at eBay.com.sg. Browse our daily deals for even more savings! Free shipping on many items! for sale by owner dublin tx Big Bore two strokes rule the straightaways of the world ! 1. For this edition of GP's Classic Steel, we are going to take a look back at the last of Yamaha's big-bore two-stroke YZs, the 1990 YZ490. After languishing in Yamaha's lineup (and in showrooms) for half a decade with only minor updates, Yamaha finally put the mighty YZ490 out to pasture in 1990. Photo Credit: Yamaha.3.3 Check out the detailed rating of off-road capabilities, engine performance, maintenance cost, etc. Compare with any other bike. Engine and transmission. Displacement. 490.0 ccm (29.90 cubic inches) Engine type. Single cylinder, two-stroke. Power. 55.0 HP (40.1 kW )) @ 7000 RPM. Fuel system. 1988 Yamaha YZ490 Vintage Big Bore MX Bike - $4,200 (Hamilton) Warning! NOT for Beginners. Never Raced, Not Beat, well cared for. 1988 Yamaha YZ490 Vintage MX Bike. Still on the original bore. 1 Re-ring. Runs Super Strong. This bike will win Vintage MX Races if you got the balls. Believe it or not Broc Glover raced a stock YZ490 and to everyone ... Get the best deal for Motorcycle Big Bore & Top End Kits for Yamaha YZ490 from the largest online selection at eBay.com.sg. Browse our daily deals for even more savings! Free shipping on many items! Nov 04, 2010 · I had 4 yz 490's in the 1980's. They were a1982,1983,1985 and 1988. The first two ran very good with proper jetting.The last two were very tough to jet and extremely affected by temp. and other weather factors. Oct 26, 2017 · 1. For this edition of GP’s Classic Steel, we are going to take a look back at the last of Yamaha’s big-bore two-stroke YZs, the 1990 YZ490. After languishing in Yamaha’s lineup (and in showrooms) for half a decade with only minor updates, Yamaha finally put the mighty YZ490 out to pasture in 1990. Photo Credit: Yamaha. The chart below is from the Yamaha Service Manual for the Yamaha DT250B and DT400B. The chart is for stud/bolt sizes with standard I.S.) pitch threads. For bolts with other thread pitches, consult your manual. Torque specs call for clean, dry threads. Components such as the cylinder or cylinder head should be at room temperature prior to torquing. Jul 01, 1984 · The YZ490—and before that, the YZ465—might have been hurting in one area or another, but horsepower hasn’t been one of them. And the 1984 YZ490 is no exception; in fact, not only might it be the fastest Open-class machine of the year, it could be the fastest motocross bike ever built. Yamaha didn’t have to build an allnew motorcycle to ... Yamaha YZ 490 1990 Motorcycle Photos and Specs. Get the latest Specifications for Yamaha YZ 490 1990 Motorcycle from mbike.com! Mbike - Catalogue. Community. ... Bore × stroke : 3.43 inch × 3.23 inch (oversquare - shortstroke) Throttle: Cable operated: Valves: Valves per cylinder: 4: Fuel and ignition: Sparks per cylinder: 1:.Mar 29, 2013 · 1982 XC 430 HusqvarnaAA Class. While looking through some old part catalogs tonight,I stumbled upon the specs of the 1983-1990 Yamaha YZ490 connecting rod.The YZ/IT 465 and WR500's might use it also.Although it is 2mm longer {at 137mm} than most 1975-up air cooled 250/360/390/420/430 rods,it does have the same 25mm diameter X 64mm long {would ... Oct 26, 2017 · 1. For this edition of GP’s Classic Steel, we are going to take a look back at the last of Yamaha’s big-bore two-stroke YZs, the 1990 YZ490. After languishing in Yamaha’s lineup (and in showrooms) for half a decade with only minor updates, Yamaha finally put the mighty YZ490 out to pasture in 1990. Photo Credit: Yamaha. Apr 3, 2013 - Yamaha YZ490 - the last big bore from Yamaha. I think 1983. Photo courtesy of Vintage Factory; The Yamaha YZ490 is a 2 stroke, Motocross bike with a Air cooled 490.00 ccm (29,75 cubic ... For this edition of GP's Classic Steel, we are going to take a look back at the last of Yamaha's big-bore two-stroke YZs, the 1990 YZ490.3.3 Check out the detailed rating of off-road capabilities, engine performance, maintenance cost, etc. Compare with any other bike. Engine and transmission. Displacement. 490.0 ccm (29.90 cubic inches) Engine type. Single cylinder, two-stroke. Power. 55.0 HP (40.1 kW )) @ 7000 RPM. Fuel system. Get the latest Specifications for Yamaha YZ 490 1990 Motorcycle from mbike.com! Mbike - Catalogue. Community. ... Bore × stroke : 3.43 inch × 3.23 inch (oversquare - shortstroke) Throttle: Cable operated: Valves: Valves per cylinder: 4: Fuel and ignition: Sparks per cylinder: 1:. 3.6 Check out the detailed rating of off-road capabilities, engine performance, maintenance cost, etc. Compare with any other bike. Engine and transmission. Displacement. 487.0 ccm (29.72 cubic inches) Engine type. Single cylinder, two-stroke. Power. 35.0 HP (25.5 kW )) @ 6000 RPM. Torque. The fact that Broc won the 1985 AMA 500 National Championship on what many experts consider one of the worst motocross machines ever built is testament to his talent. The Yamaha YZ490 was introduced in 1982 (following in the footsteps of the YZ465). Sadly, the 490 was heavier than the 465, nowhere near as reliable, difficult to start, had grim ... Jan 07, 2021 · The 1985 model was white with red and blue graphics. If you are looking at buying a vintage 1985 YZ490, look for the front disc brake, gold Takasago rims, BASS system and stock boost bottle ... Apr 21, 2022 · Yamaha yz 490 very good condition Running wel Yamaha yz490 For Sale - 2-stroke Motorcycles and Parts Yamaha yz490 - On our marketplace you can advertise your 2-stroke motorcycle or parts for sale, or you can find that special piece that you are looking for. Jul 01, 1984 · The YZ490—and before that, the YZ465—might have been hurting in one area or another, but horsepower hasn’t been one of them. And the 1984 YZ490 is no exception; in fact, not only might it be the fastest Open-class machine of the year, it could be the fastest motocross bike ever built. Yamaha didn’t have to build an allnew motorcycle to ... Nov 04, 2010 · I had 4 yz 490's in the 1980's. They were a1982,1983,1985 and 1988. The first two ran very good with proper jetting.The last two were very tough to jet and extremely affected by temp. and other weather factors. Nov 04, 2010 · I had 4 yz 490's in the 1980's. They were a1982,1983,1985 and 1988. The first two ran very good with proper jetting.The last two were very tough to jet and extremely affected by temp. and other weather factors. Yamaha YZ 490 1990 Motorcycle Photos and Specs. Get the latest Specifications for Yamaha YZ 490 1990 Motorcycle from mbike.com! Mbike - Catalogue. Community. ... Bore × stroke : 3.43 inch × 3.23 inch (oversquare - shortstroke) Throttle: Cable operated: Valves: Valves per cylinder: 4: Fuel and ignition: Sparks per cylinder: 1:.For this edition of GP's Classic Steel, we are going to take a look back at the last of Yamaha's big-bore two-stroke YZs, the 1990 YZ490. After languishing in Yamaha's lineup (and in showrooms) for half a decade with only minor updates, Yamaha finally put the mighty YZ490 out to pasture in 1990. Photo Credit: Yamaha. Wiseco Pro-Lite 2 ...Oct 26, 2017 · 1. For this edition of GP’s Classic Steel, we are going to take a look back at the last of Yamaha’s big-bore two-stroke YZs, the 1990 YZ490. After languishing in Yamaha’s lineup (and in showrooms) for half a decade with only minor updates, Yamaha finally put the mighty YZ490 out to pasture in 1990. Photo Credit: Yamaha. 1988 Yamaha YZ490 Vintage Big Bore MX Bike - $4,200 (Hamilton) Warning! NOT for Beginners. Never Raced, Not Beat, well cared for. 1988 Yamaha YZ490 Vintage MX Bike. Still on the original bore. 1 Re-ring. Runs Super Strong. This bike will win Vintage MX Races if you got the balls. Believe it or not Broc Glover raced a stock YZ490 and to everyone ... Yamaha (2-cycle) Model: Bore x Stroke (mm) Displ. (cc) Bore size mm: Bore Size inches: Wiseco Kit Part # Bore ... YZ490 J, K 1982-83 IT490, 1983-84: 87 x 82: 487: 87 ... Maier Side Panels Yellow #234714 Yamaha YZ490/YZ250 2-Stroke 1983 (Fits: Yamaha YZ490) (1) 1 product ratings - Maier Side Panels Yellow #234714 Yamaha YZ490/YZ250 2-Stroke 1983 $86.53 The chart below is from the Yamaha Service Manual for the Yamaha DT250B and DT400B. The chart is for stud/bolt sizes with standard I.S.) pitch threads. For bolts with other thread pitches, consult your manual. Torque specs call for clean, dry threads. Components such as the cylinder or cylinder head should be at room temperature prior to torquing. The chart below is from the Yamaha Service Manual for the Yamaha DT250B and DT400B. The chart is for stud/bolt sizes with standard I.S.) pitch threads. For bolts with other thread pitches, consult your manual. Torque specs call for clean, dry threads. Components such as the cylinder or cylinder head should be at room temperature prior to torquing. Nov 30, 2010 · Make / Model Specific. Yamaha Motorcycles. Yamaha 2 Stroke. yz490 bore. A 500cc dirt bike is good if you're an experienced rider that wants the nostalgia of riding a big bore 2 stroke dirt bike, or a more comfortable 4 stroke enduro bike for longer rides. ... Yamaha YZ490 and Suzuki RM360. 4 stroke 500. There are modern 500cc dirt bikes that have a 4 stroke engine. KTM has the 500 EXC-F and Husqvarna has the 501.1982 Yamaha Yz490 Big Bore 2 Stroke Bike!! A few short idle clips and revs and also a nice power band pull on the road! This is a classic 1st year yz490 from... The fact that Broc won the 1985 AMA 500 National Championship on what many experts consider one of the worst motocross machines ever built is testament to his talent. The Yamaha YZ490 was introduced in 1982 (following in the footsteps of the YZ465). Sadly, the 490 was heavier than the 465, nowhere near as reliable, difficult to start, had grim ... Posted November 14, 2008. The YZ490 that Broc Glover rode in 85 was really close to a stock bike.He beat Dave Bailey on the trickest works Honda ever produced in the history of motocross.Glover is an amazing rider and the YZ490 couldnt have been all that bad.Purchase the Wiseco Yamaha YZ 80 19761980 Piston 50.00mm from SportbikeTrackGear.com. Get the lowest price, free shipping deal, easy exchanges and no restocking fees - Guaranteed! ... Specifications: Product Name: Piston; Piston Material: Forged / Aluminum Alloy; ... Wiseco Yamaha YZ 250 1980 -1982 Piston 1.25 mm. $207.85 $197.46. For this week's GP's Classic Steel we are going to take a look back at the machine that took Broc Glover to his last 500 National Motocross title, the 1985 Yamaha YZ490. In 1985, the Open class was still considered one of the most prestigious divisions in motocross. Honda, Kawasaki, Husqvarna, KTM and even Cagiva, all produced liquid-cooled ...Posted November 14, 2008. The YZ490 that Broc Glover rode in 85 was really close to a stock bike.He beat Dave Bailey on the trickest works Honda ever produced in the history of motocross.Glover is an amazing rider and the YZ490 couldnt have been all that bad.Jul 01, 1984 · The YZ490—and before that, the YZ465—might have been hurting in one area or another, but horsepower hasn’t been one of them. And the 1984 YZ490 is no exception; in fact, not only might it be the fastest Open-class machine of the year, it could be the fastest motocross bike ever built. Yamaha didn’t have to build an allnew motorcycle to ... 1987 brought some minor updates, including a redesigned head and 43mm Kayaba Travel Control Valve forks. It also still featured Yamaha’s Energy Induction System, the first 2-stroke “boost bottle” in the industry that they debuted back in 1980. This example is VIN: JYA2HJ004HA001631, Engine #: 24J-001631. It was mechanically restored by ... Apr 21, 2022 · Yamaha yz 490 very good condition Running wel Yamaha yz490 For Sale - 2-stroke Motorcycles and Parts Yamaha yz490 - On our marketplace you can advertise your 2-stroke motorcycle or parts for sale, or you can find that special piece that you are looking for. 3.6 Check out the detailed rating of off-road capabilities, engine performance, maintenance cost, etc. Compare with any other bike. Engine and transmission. Displacement. 487.0 ccm (29.72 cubic inches) Engine type. Single cylinder, two-stroke. Power. 35.0 HP (25.5 kW )) @ 6000 RPM. Torque. Drive Chain. #56-0220 | Yamaha YZ490 (1982) Drive Chain 520MCR x 110 Average Tensile Strength 7380LBS High Duty Drive Chain With Gold Colour Plated Side Plates Izumi - Made in Japan. SALE: USD$ 12.00. Apr 21, 2022 · Yamaha yz 490 very good condition Running wel Yamaha yz490 For Sale - 2-stroke Motorcycles and Parts Yamaha yz490 - On our marketplace you can advertise your 2-stroke motorcycle or parts for sale, or you can find that special piece that you are looking for. I have a 1983 yamaha yz 490 for sale Motor was sent out to have the head ported by the best in the business Forward Motion, a Millennium Technologies LLC Company 1404 Pilgrim Road, Plymouth, WI 53073 making it run better on pump gas. Cylinder was bored over .020 and this was the first bore from original.. "/>1982 Yamaha Yz490 Big Bore 2 Stroke Bike!! A few short idle clips and revs and also a nice power band pull on the road! This is a classic 1st year yz490 from... ucsc math 23a Although their was still a hint of ping, ring & ding, Yamaha engineers had been busy making modifications to the cylinder head, exhaust & ignition to produced a motor that had extremely good power characteristics right through the range. This revitalised YZ490 motor, now painted silver, was slotted into a new frame that had been based on a ... 1982 Yamaha Yz490 Big Bore 2 Stroke Bike!! A few short idle clips and revs and also a nice power band pull on the road! This is a classic 1st year yz490 from... Nov 30, 2010 · Make / Model Specific. Yamaha Motorcycles. Yamaha 2 Stroke. yz490 bore. Big Bore two strokes rule the straightaways of the world ! Because the speed of four- stroke engines is lower than that of two- stroke engines, these outboards last longer than ... he would service it five times a year . ... 1971 yamaha at1 125 value; private land for. That's my two stroke experience. I said don't use the Interceptor because it is pure garbage. Amsoil's worst product by far. Mar 29, 2013 · 1982 XC 430 HusqvarnaAA Class. While looking through some old part catalogs tonight,I stumbled upon the specs of the 1983-1990 Yamaha YZ490 connecting rod.The YZ/IT 465 and WR500's might use it also.Although it is 2mm longer {at 137mm} than most 1975-up air cooled 250/360/390/420/430 rods,it does have the same 25mm diameter X 64mm long {would ... Apr 3, 2013 - Yamaha YZ490 - the last big bore from Yamaha. I think 1983. Photo courtesy of Vintage Factory ... 2 Stroke Dirt Bike. Motocross Photography. Off Road ... Maier Side Panels Yellow #234714 Yamaha YZ490/YZ250 2-Stroke 1983 (Fits: Yamaha YZ490) (1) 1 product ratings - Maier Side Panels Yellow #234714 Yamaha YZ490/YZ250 2-Stroke 1983 $86.53 Oct 26, 2017 · 1. For this edition of GP’s Classic Steel, we are going to take a look back at the last of Yamaha’s big-bore two-stroke YZs, the 1990 YZ490. After languishing in Yamaha’s lineup (and in showrooms) for half a decade with only minor updates, Yamaha finally put the mighty YZ490 out to pasture in 1990. Photo Credit: Yamaha. Maier Side Panels Yellow #234714 Yamaha YZ490/YZ250 2-Stroke 1983 (Fits: Yamaha YZ490) (1) 1 product ratings - Maier Side Panels Yellow #234714 Yamaha YZ490/YZ250 2-Stroke 1983 $86.53 Oct 21, 2014 · For this week’s GP’s Classic Steel we are going to take a look back at the machine that took Broc Glover to his last 500 National Motocross title, the 1985 Yamaha YZ490. In 1985, the Open class was still considered one of the most prestigious divisions in motocross. Honda, Kawasaki, Husqvarna, KTM and even Cagiva, all produced liquid-cooled ... The chart below is from the Yamaha Service Manual for the Yamaha DT250B and DT400B. The chart is for stud/bolt sizes with standard I.S.) pitch threads. For bolts with other thread pitches, consult your manual. Torque specs call for clean, dry threads. Components such as the cylinder or cylinder head should be at room temperature prior to torquing. Get the best deal for Motorcycle Big Bore & Top End Kits for Yamaha YZ490 from the largest online selection at eBay.com.sg. Browse our daily deals for even more savings! Free shipping on many items! Mar 29, 2013 · 1982 XC 430 HusqvarnaAA Class. While looking through some old part catalogs tonight,I stumbled upon the specs of the 1983-1990 Yamaha YZ490 connecting rod.The YZ/IT 465 and WR500's might use it also.Although it is 2mm longer {at 137mm} than most 1975-up air cooled 250/360/390/420/430 rods,it does have the same 25mm diameter X 64mm long {would ... 3.3 Check out the detailed rating of off-road capabilities, engine performance, maintenance cost, etc. Compare with any other bike. Engine and transmission. Displacement. 490.0 ccm (29.90 cubic inches) Engine type. Single cylinder, two-stroke. Power. 55.0 HP (40.1 kW )) @ 7000 RPM. Fuel system. galway death notices 3 cylinder 2 stroke Part1 Full Throttle @ WOT . Full Trim,no "cavitation"/ventilation 37.5 knots at 5300 Rpm. ( I need a Jack Plate )Full Throttle @ WOT,,,LO. 1982 Yamaha Yz490 Big Bore 2 Stroke Bike!! A few short idle clips and revs and also a nice power band pull on the road! This is a classic 1st year yz490 from... 1. For this edition of GP's Classic Steel, we are going to take a look back at the last of Yamaha's big-bore two-stroke YZs, the 1990 YZ490. After languishing in Yamaha's lineup (and in showrooms) for half a decade with only minor updates, Yamaha finally put the mighty YZ490 out to pasture in 1990. Photo Credit: Yamaha.Although their was still a hint of ping, ring & ding, Yamaha engineers had been busy making modifications to the cylinder head, exhaust & ignition to produced a motor that had extremely good power characteristics right through the range. This revitalised YZ490 motor, now painted silver, was slotted into a new frame that had been based on a ... Free delivery for many products! 1984 Yamaha YZ490 - big bore 2 stroke. The 1983 Yamaha YZ490 was a great big bore two-stroke that really lit up when you hit the top-end. The engine was a bit sluggish in the bottom end, but excelled in the higher RPMs. This made the YZ490 great for longer tracks and hare scrambles. Yamaha YZ100, YZ125, YZ175 ...Jul 01, 1984 · The YZ490—and before that, the YZ465—might have been hurting in one area or another, but horsepower hasn’t been one of them. And the 1984 YZ490 is no exception; in fact, not only might it be the fastest Open-class machine of the year, it could be the fastest motocross bike ever built. Yamaha didn’t have to build an allnew motorcycle to ... Maier Side Panels Yellow #234714 Yamaha YZ490/YZ250 2-Stroke 1983 (Fits: Yamaha YZ490) (1) 1 product ratings - Maier Side Panels Yellow #234714 Yamaha YZ490/YZ250 2-Stroke 1983 $86.53 1982 Yamaha Yz490 Big Bore 2 Stroke Bike!! A few short idle clips and revs and also a nice power band pull on the road! This is a classic 1st year yz490 from... Apr 3, 2013 - Yamaha YZ490 - the last big bore from Yamaha. I think 1983. Photo courtesy of Vintage Factory ... 2 Stroke Dirt Bike. Motocross Photography. Off Road ... 3.6 Check out the detailed rating of off-road capabilities, engine performance, maintenance cost, etc. Compare with any other bike. Engine and transmission. Displacement. 487.0 ccm (29.72 cubic inches) Engine type. Single cylinder, two-stroke. Power. 35.0 HP (25.5 kW )) @ 6000 RPM. Torque. 1. For this edition of GP's Classic Steel, we are going to take a look back at the last of Yamaha's big-bore two-stroke YZs, the 1990 YZ490. After languishing in Yamaha's lineup (and in showrooms) for half a decade with only minor updates, Yamaha finally put the mighty YZ490 out to pasture in 1990. Photo Credit: Yamaha.Drive Chain. #56-0220 | Yamaha YZ490 (1982) Drive Chain 520MCR x 110 Average Tensile Strength 7380LBS High Duty Drive Chain With Gold Colour Plated Side Plates Izumi - Made in Japan. SALE: USD$ 12.00. The fact that Broc won the 1985 AMA 500 National Championship on what many experts consider one of the worst motocross machines ever built is testament to his talent. The Yamaha YZ490 was introduced in 1982 (following in the footsteps of the YZ465). Sadly, the 490 was heavier than the 465, nowhere near as reliable, difficult to start, had grim ... Mar 29, 2013 · 1982 XC 430 HusqvarnaAA Class. While looking through some old part catalogs tonight,I stumbled upon the specs of the 1983-1990 Yamaha YZ490 connecting rod.The YZ/IT 465 and WR500's might use it also.Although it is 2mm longer {at 137mm} than most 1975-up air cooled 250/360/390/420/430 rods,it does have the same 25mm diameter X 64mm long {would ... 3 cylinder 2 stroke Part1 Full Throttle @ WOT . Full Trim,no "cavitation"/ventilation 37.5 knots at 5300 Rpm. ( I need a Jack Plate )Full Throttle @ WOT,,,LO. Jan 17, 2011 · 1987 yamaha yz490 runs good. this is a rare bike, it is a mono cross bike with a big bore motor. Two stroke big bore motor, they dont make em like this anymore. Very fast motor, somewhere around 50 hp. Extremely fast bike!!!!!3.3 Check out the detailed rating of off-road capabilities, engine performance, maintenance cost, etc. Compare with any other bike. Engine and transmission. Displacement. 490.0 ccm (29.90 cubic inches) Engine type. Single cylinder, two-stroke. Power. 55.0 HP (40.1 kW )) @ 7000 RPM. Fuel system. Mar 29, 2013 · 1982 XC 430 HusqvarnaAA Class. While looking through some old part catalogs tonight,I stumbled upon the specs of the 1983-1990 Yamaha YZ490 connecting rod.The YZ/IT 465 and WR500's might use it also.Although it is 2mm longer {at 137mm} than most 1975-up air cooled 250/360/390/420/430 rods,it does have the same 25mm diameter X 64mm long {would ... Oct 21, 2014 · For this week’s GP’s Classic Steel we are going to take a look back at the machine that took Broc Glover to his last 500 National Motocross title, the 1985 Yamaha YZ490. In 1985, the Open class was still considered one of the most prestigious divisions in motocross. Honda, Kawasaki, Husqvarna, KTM and even Cagiva, all produced liquid-cooled ... 1982 Yamaha Yz490 Big Bore 2 Stroke Bike!! A few short idle clips and revs and also a nice power band pull on the road! This is a classic 1st year yz490 from... Nov 04, 2010 · I had 4 yz 490's in the 1980's. They were a1982,1983,1985 and 1988. The first two ran very good with proper jetting.The last two were very tough to jet and extremely affected by temp. and other weather factors. 1988 Yamaha YZ490 Vintage Big Bore MX Bike - $4,200 (Hamilton) Warning! NOT for Beginners. Never Raced, Not Beat, well cared for. 1988 Yamaha YZ490 Vintage MX Bike. Still on the original bore. 1 Re-ring. Runs Super Strong. This bike will win Vintage MX Races if you got the balls. Believe it or not Broc Glover raced a stock YZ490 and to everyone ... Im putting a new piston in my 1982 yz 490 but i dont know if it has been bored over size so I was wondering if anyone knew the stock bore for it. any help would be much appreciated. Jump to content Yamaha 2 StrokeApr 3, 2013 - Yamaha YZ490 - the last big bore from Yamaha. I think 1983. Photo courtesy of Vintage Factory ... 2 Stroke Dirt Bike. Motocross Photography. Off Road ... Maier Side Panels Yellow #234714 Yamaha YZ490/YZ250 2-Stroke 1983 (Fits: Yamaha YZ490) (1) 1 product ratings - Maier Side Panels Yellow #234714 Yamaha YZ490/YZ250 2-Stroke 1983 $86.53 1. For this edition of GP's Classic Steel, we are going to take a look back at the last of Yamaha's big-bore two-stroke YZs, the 1990 YZ490. After languishing in Yamaha's lineup (and in showrooms) for half a decade with only minor updates, Yamaha finally put the mighty YZ490 out to pasture in 1990. Photo Credit: Yamaha.Free delivery for many products! 1984 Yamaha YZ490 - big bore 2 stroke. The 1983 Yamaha YZ490 was a great big bore two-stroke that really lit up when you hit the top-end. The engine was a bit sluggish in the bottom end, but excelled in the higher RPMs. This made the YZ490 great for longer tracks and hare scrambles. Yamaha YZ100, YZ125, YZ175 ...1987 brought some minor updates, including a redesigned head and 43mm Kayaba Travel Control Valve forks. It also still featured Yamaha’s Energy Induction System, the first 2-stroke “boost bottle” in the industry that they debuted back in 1980. This example is VIN: JYA2HJ004HA001631, Engine #: 24J-001631. It was mechanically restored by ... The 1991-1/2 Yamaha WR500 engine was basically the same engine that first surfaced eight years earlier on the YZ490 ; however, the air-cooled, boost-bottled, five-speed,. Mar 29, 2013 · 1982 XC 430 HusqvarnaAA Class. While looking through some old part catalogs tonight,I stumbled upon the specs of the 1983-1990 Yamaha YZ490 connecting rod.The YZ/IT 465 and WR500's might use it also.Although it is 2mm longer {at 137mm} than most 1975-up air cooled 250/360/390/420/430 rods,it does have the same 25mm diameter X 64mm long {would ... 3.3 Check out the detailed rating of off-road capabilities, engine performance, maintenance cost, etc. Compare with any other bike. Engine and transmission. Displacement. 490.0 ccm (29.90 cubic inches) Engine type. Single cylinder, two-stroke. Power. 55.0 HP (40.1 kW )) @ 7000 RPM. Fuel system. Nov 04, 2010 · I had 4 yz 490's in the 1980's. They were a1982,1983,1985 and 1988. The first two ran very good with proper jetting.The last two were very tough to jet and extremely affected by temp. and other weather factors. The chart below is from the Yamaha Service Manual for the Yamaha DT250B and DT400B. The chart is for stud/bolt sizes with standard I.S.) pitch threads. For bolts with other thread pitches, consult your manual. Torque specs call for clean, dry threads. Components such as the cylinder or cylinder head should be at room temperature prior to torquing. Oct 26, 2017 · 1. For this edition of GP’s Classic Steel, we are going to take a look back at the last of Yamaha’s big-bore two-stroke YZs, the 1990 YZ490. After languishing in Yamaha’s lineup (and in showrooms) for half a decade with only minor updates, Yamaha finally put the mighty YZ490 out to pasture in 1990. Photo Credit: Yamaha. Oct 26, 2017 · 1. For this edition of GP’s Classic Steel, we are going to take a look back at the last of Yamaha’s big-bore two-stroke YZs, the 1990 YZ490. After languishing in Yamaha’s lineup (and in showrooms) for half a decade with only minor updates, Yamaha finally put the mighty YZ490 out to pasture in 1990. Photo Credit: Yamaha. Yamaha (2-cycle) Model: Bore x Stroke (mm) Displ. (cc) Bore size mm: Bore Size inches: Wiseco Kit Part # Bore ... YZ490 J, K 1982-83 IT490, 1983-84: 87 x 82: 487: 87 ... The fact that Broc won the 1985 AMA 500 National Championship on what many experts consider one of the worst motocross machines ever built is testament to his talent. The Yamaha YZ490 was introduced in 1982 (following in the footsteps of the YZ465). Sadly, the 490 was heavier than the 465, nowhere near as reliable, difficult to start, had grim ... The fact that Broc won the 1985 AMA 500 National Championship on what many experts consider one of the worst motocross machines ever built is testament to his talent. The Yamaha YZ490 was introduced in 1982 (following in the footsteps of the YZ465). Sadly, the 490 was heavier than the 465, nowhere near as reliable, difficult to start, had grim ... Im putting a new piston in my 1982 yz 490 but i dont know if it has been bored over size so I was wondering if anyone knew the stock bore for it. any help would be much appreciated. Jump to content Yamaha 2 StrokeA 500cc dirt bike is good if you're an experienced rider that wants the nostalgia of riding a big bore 2 stroke dirt bike, or a more comfortable 4 stroke enduro bike for longer rides. ... Yamaha YZ490 and Suzuki RM360. 4 stroke 500. There are modern 500cc dirt bikes that have a 4 stroke engine. KTM has the 500 EXC-F and Husqvarna has the 501.For this week's GP's Classic Steel we are going to take a look back at the machine that took Broc Glover to his last 500 National Motocross title, the 1985 Yamaha YZ490. In 1985, the Open class was still considered one of the most prestigious divisions in motocross. Honda, Kawasaki, Husqvarna, KTM and even Cagiva, all produced liquid-cooled ...Oct 26, 2017 · 1. For this edition of GP’s Classic Steel, we are going to take a look back at the last of Yamaha’s big-bore two-stroke YZs, the 1990 YZ490. After languishing in Yamaha’s lineup (and in showrooms) for half a decade with only minor updates, Yamaha finally put the mighty YZ490 out to pasture in 1990. Photo Credit: Yamaha. 3.6 Check out the detailed rating of off-road capabilities, engine performance, maintenance cost, etc. Compare with any other bike. Engine and transmission. Displacement. 487.0 ccm (29.72 cubic inches) Engine type. Single cylinder, two-stroke. Power. 35.0 HP (25.5 kW )) @ 6000 RPM. Torque. Nov 30, 2010 · Make / Model Specific. Yamaha Motorcycles. Yamaha 2 Stroke. yz490 bore. Oct 21, 2014 · For this week’s GP’s Classic Steel we are going to take a look back at the machine that took Broc Glover to his last 500 National Motocross title, the 1985 Yamaha YZ490. In 1985, the Open class was still considered one of the most prestigious divisions in motocross. Honda, Kawasaki, Husqvarna, KTM and even Cagiva, all produced liquid-cooled ... 1988 Yamaha YZ490 Vintage Big Bore MX Bike - $4,200 (Hamilton) Warning! NOT for Beginners. Never Raced, Not Beat, well cared for. 1988 Yamaha YZ490 Vintage MX Bike. Still on the original bore. 1 Re-ring. Runs Super Strong. This bike will win Vintage MX Races if you got the balls. Believe it or not Broc Glover raced a stock YZ490 and to everyone ... The 1991-1/2 Yamaha WR500 engine was basically the same engine that first surfaced eight years earlier on the YZ490 ; however, the air-cooled, boost-bottled, five-speed,. 3.6 Check out the detailed rating of off-road capabilities, engine performance, maintenance cost, etc. Compare with any other bike. Engine and transmission. Displacement. 487.0 ccm (29.72 cubic inches) Engine type. Single cylinder, two-stroke. Power. 35.0 HP (25.5 kW )) @ 6000 RPM. Torque. Posted November 14, 2008. The YZ490 that Broc Glover rode in 85 was really close to a stock bike.He beat Dave Bailey on the trickest works Honda ever produced in the history of motocross.Glover is an amazing rider and the YZ490 couldnt have been all that bad.1982 Yamaha Yz490 Big Bore 2 Stroke Bike!! A few short idle clips and revs and also a nice power band pull on the road! This is a classic 1st year yz490 from... The fact that Broc won the 1985 AMA 500 National Championship on what many experts consider one of the worst motocross machines ever built is testament to his talent. The Yamaha YZ490 was introduced in 1982 (following in the footsteps of the YZ465). Sadly, the 490 was heavier than the 465, nowhere near as reliable, difficult to start, had grim ... Apr 3, 2013 - Yamaha YZ490 - the last big bore from Yamaha. I think 1983. Photo courtesy of Vintage Factory ... 2 Stroke Dirt Bike. Motocross Photography. Off Road ... Mar 29, 2013 · 1982 XC 430 HusqvarnaAA Class. While looking through some old part catalogs tonight,I stumbled upon the specs of the 1983-1990 Yamaha YZ490 connecting rod.The YZ/IT 465 and WR500's might use it also.Although it is 2mm longer {at 137mm} than most 1975-up air cooled 250/360/390/420/430 rods,it does have the same 25mm diameter X 64mm long {would ... Maier Side Panels Yellow #234714 Yamaha YZ490/YZ250 2-Stroke 1983 (Fits: Yamaha YZ490) (1) 1 product ratings - Maier Side Panels Yellow #234714 Yamaha YZ490/YZ250 2-Stroke 1983 $86.53 Nov 30, 2010 · Make / Model Specific. Yamaha Motorcycles. Yamaha 2 Stroke. yz490 bore. A 500cc dirt bike is good if you're an experienced rider that wants the nostalgia of riding a big bore 2 stroke dirt bike, or a more comfortable 4 stroke enduro bike for longer rides. ... Yamaha YZ490 and Suzuki RM360. 4 stroke 500. There are modern 500cc dirt bikes that have a 4 stroke engine. KTM has the 500 EXC-F and Husqvarna has the 501.Nov 23, 2019 · Rear: expanding brake (drum brake) Weight. 235.89 pounds (107.0 Kg) ( dry ), Recommended Oil. Yamalube 10w-40. Manuals. Service Manual. The Yamaha YZ490 was a single cylinder, two-stroke All motorcycle produced by Yamaha in 1987. Claimed horsepower was 53.77 HP (40.1 KW) @ 7000 RPM. Free delivery for many products! 1984 Yamaha YZ490 - big bore 2 stroke. The 1983 Yamaha YZ490 was a great big bore two-stroke that really lit up when you hit the top-end. The engine was a bit sluggish in the bottom end, but excelled in the higher RPMs. This made the YZ490 great for longer tracks and hare scrambles. Yamaha YZ100, YZ125, YZ175 ...Yamaha YZ model information - for YZ100, YZ125, YZ175, YZ250, YZ400 and YZ465 Apr 21, 2022 · Yamaha yz 490 very good condition Running wel Yamaha yz490 For Sale - 2-stroke Motorcycles and Parts Yamaha yz490 - On our marketplace you can advertise your 2-stroke motorcycle or parts for sale, or you can find that special piece that you are looking for. Jan 07, 2021 · The 1985 model was white with red and blue graphics. If you are looking at buying a vintage 1985 YZ490, look for the front disc brake, gold Takasago rims, BASS system and stock boost bottle ... Get the latest Specifications for Yamaha YZ 490 1990 Motorcycle from mbike.com! Mbike - Catalogue. Community. ... Bore × stroke : 3.43 inch × 3.23 inch (oversquare - shortstroke) Throttle: Cable operated: Valves: Valves per cylinder: 4: Fuel and ignition: Sparks per cylinder: 1:. Nov 12, 2008 · Posted November 14, 2008. The YZ490 that Broc Glover rode in 85 was really close to a stock bike.He beat Dave Bailey on the trickest works Honda ever produced in the history of motocross.Glover is an amazing rider and the YZ490 couldnt have been all that bad. Get the latest Specifications for Yamaha YZ 490 1990 Motorcycle from mbike.com! Mbike - Catalogue. Community. ... Bore × stroke : 3.43 inch × 3.23 inch (oversquare - shortstroke) Throttle: Cable operated: Valves: Valves per cylinder: 4: Fuel and ignition: Sparks per cylinder: 1:. Oct 26, 2017 · 1. For this edition of GP’s Classic Steel, we are going to take a look back at the last of Yamaha’s big-bore two-stroke YZs, the 1990 YZ490. After languishing in Yamaha’s lineup (and in showrooms) for half a decade with only minor updates, Yamaha finally put the mighty YZ490 out to pasture in 1990. Photo Credit: Yamaha. The chart below is from the Yamaha Service Manual for the Yamaha DT250B and DT400B. The chart is for stud/bolt sizes with standard I.S.) pitch threads. For bolts with other thread pitches, consult your manual. Torque specs call for clean, dry threads. Components such as the cylinder or cylinder head should be at room temperature prior to torquing. Big Bore two strokes rule the straightaways of the world ! Nov 30, 2010 · Make / Model Specific. Yamaha Motorcycles. Yamaha 2 Stroke. yz490 bore. The fact that Broc won the 1985 AMA 500 National Championship on what many experts consider one of the worst motocross machines ever built is testament to his talent. The Yamaha YZ490 was introduced in 1982 (following in the footsteps of the YZ465). Sadly, the 490 was heavier than the 465, nowhere near as reliable, difficult to start, had grim ... The fact that Broc won the 1985 AMA 500 National Championship on what many experts consider one of the worst motocross machines ever built is testament to his talent. The Yamaha YZ490 was introduced in 1982 (following in the footsteps of the YZ465). Sadly, the 490 was heavier than the 465, nowhere near as reliable, difficult to start, had grim ... Nov 12, 2008 · Posted November 14, 2008. The YZ490 that Broc Glover rode in 85 was really close to a stock bike.He beat Dave Bailey on the trickest works Honda ever produced in the history of motocross.Glover is an amazing rider and the YZ490 couldnt have been all that bad. Posted November 14, 2008. The YZ490 that Broc Glover rode in 85 was really close to a stock bike.He beat Dave Bailey on the trickest works Honda ever produced in the history of motocross.Glover is an amazing rider and the YZ490 couldnt have been all that bad.1988 Yamaha YZ490 Vintage Big Bore MX Bike - $4,200 (Hamilton) Warning! NOT for Beginners. Never Raced, Not Beat, well cared for. 1988 Yamaha YZ490 Vintage MX Bike. Still on the original bore. 1 Re-ring. Runs Super Strong. This bike will win Vintage MX Races if you got the balls. Believe it or not Broc Glover raced a stock YZ490 and to everyone ... Oct 21, 2014 · For this week’s GP’s Classic Steel we are going to take a look back at the machine that took Broc Glover to his last 500 National Motocross title, the 1985 Yamaha YZ490. In 1985, the Open class was still considered one of the most prestigious divisions in motocross. Honda, Kawasaki, Husqvarna, KTM and even Cagiva, all produced liquid-cooled ... Although their was still a hint of ping, ring & ding, Yamaha engineers had been busy making modifications to the cylinder head, exhaust & ignition to produced a motor that had extremely good power characteristics right through the range. This revitalised YZ490 motor, now painted silver, was slotted into a new frame that had been based on a ...1982 Yamaha Yz490 Big Bore 2 Stroke Bike!! A few short idle clips and revs and also a nice power band pull on the road! This is a classic 1st year yz490 from... tts voice wizardxa