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Yamaha YZ490


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Yamaha YZ490
Manufacturer Yamaha
Production 82-90
Engine 490
Sparkplug B9EG '82 , '83-85 , '86-87
B8EG '88-90
Front Tire 3.00-21 '82
80/100-21 '86-87 , '88-90
100/90-21 '83-85
Rear Tire 140/80-18 '83-85
110/100-18 '88-90
140/90-18 '82
80/100-18 '86-87
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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.

Contents

Problems

Sadly, the 490 was heavier than the 465, nowhere near as reliable, horribly difficult to start (hot or cold), came with a grim suspension, vibrated enough to bring blisters to your hands and was impossible to jet.

If you jetted it rich enough to keep this dog from seizing, it would blubber, puke, foul plugs and produce no power. If you jetted it to run strong, it would invariably seize. It came with air leaks, a wandering ignition, gimpy motor mounts and the worst case of Yamahop at high speeds since the original DT-1. Yamaha issued a mountain of service bulletins to try to fix the problems. None of them worked.


1982

1982 Yamaha YZ490J in Yellow
1982 Yamaha YZ490J in Yellow
1982 Yamaha YZ490 in Yellow
1982 Yamaha YZ490 in Yellow
1982 Yamaha YZ490 in Yellow
1982 Yamaha YZ490 in Yellow
1982 Yamaha YZ490 in Yellow
1982 Yamaha YZ490 in Yellow
1982 Yamaha YZ490 in Yellow
1982 Yamaha YZ490 in Yellow
1982 Yamaha YZ490 in Yellow
1982 Yamaha YZ490 in Yellow
1982 Yamaha YZ490 in Yellow


1983

1983 Yamaha YZ490K in Yellow
1983 Yamaha YZ490K in Yellow
1983 Yamaha YZ490K in Yellow
1983 Yamaha YZ490K in Yellow
1983 Yamaha YZ490K in Yellow



1984

1984 Yamaha YZ490 in Yellow
1984 Yamaha YZ490 in Yellow
1984 Yamaha YZ490 in Yellow


1985

1985 Yamaha YZ490 in White/Red
1985 Yamaha YZ490 in White/Red
1985 Yamaha YZ490 in White
1985 Yamaha YZ490 in White
1985 Yamaha YZ490 in White
1985 Yamaha YZ490 in White
1985 Yamaha YZ490 in White


See Also


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