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.006 on the intake and .011 on exhaust
What is the spark plug gap setting for a 1987 yamaha big bear
3.2 quarts
the gap is .025
.003" intake and .005" exhaust is a good bet, and within .002" of 95% of all the yamaha's
0.6 - 0.7 mm gap or 0.024 - 0.028 inch ----
Yes. It actually should, the only problem is the motor mounts but i think if you did a little custom mount or something it would.
87 Yamaha big bear troubleshooting electrical no fire what are some solutions?
The oil capacity for the Yamaha Big Bear 400 is 3.2 quarts. It is recommended you use 10w30 oil in the Big Bear.
Time for a rebuild
22.9 HP
Many bike owners find it easier to take it to a mechanic to get their valve adjusted. However, it is possible to do it yourself. You must set your engine at TDC on the compression stroke. You do this by inserting a small screwdriver in the spark plug hole. You will then be able to access the valve you need.