1982年5月1日 · YAMAHA YZ490J. Four Speeds and a Big Motor Aren't Quite Enough. The new rear suspension is much like the factory racers’ suspension used during the ’81 season. Where the old system relied on...

2008年11月12日 · It's a vintage bike that people enjoy working on & modifying to their own taste. It's different - not like the other dozens of 500cc's that I see (blow by) every weekend. It's for the same guy that goes to the drag strip in his V-8 Vega and gets off on explosive power. Long desert trails and climbing are exactly what it's for.

2016年11月28日 · Bike appears to have a stock 40mm Mikuni carb like most bikes these years. Jetting specs are below in the picture, which has been used at sea level extensively and was said to work well on 91 pump gas. After having carb and …

2019年11月23日 · The Yamaha YZ490 is a motorcycle produced by Yamaha from 1982 to 1990. Yamaha introduced the YZ 490 in 1982, after a solid run with the YZ465.

First ride after restore, 1982 YZ490J.

Research 1982 Yamaha YZ490J options, equipment, prices and book values.

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...

2004年6月16日 · Race Tech believes in a controlled and smooth powerband, especially on an open bike, where violent surges equal loss of traction and lack of control. They dont do anything radical when they're grinding, but say it's an important step in gaining the perfect flow from the bottom rpm to the upper hit.

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Buy a J.D. Power Motorcycle, Snowmobile, ATV, Personal Watercraft Appraisal Guide. Research 1982 Yamaha YZ490J prices and values at J.D. Power.