YZ490 COMPETITION 1984 (E) USA
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| Name | value |
|---|---|
| area code | USA |
Yamaha introduced the YZ 490 in 1982, after a solid run with the YZ465. Sadly, the 490 was heavier than the 465, nowhere near as reliable, horribly difficult to start (hot or cold), came with underdeveloped suspension, and severe vibration.
However when set up correctly, involving new rear shock and different damping oil in the front forks, and playing around with the carburettor jetting, the machine became reasonably competitive, but never the success Yamaha had hoped for.