...yamaha motorcycle back fires and won't stay idling if stock exhaust then check your air filter and air mixture screws. I would think that the valves need adjusted or the timing could possibly need ...
...burn all the gas in the cylinders. Also, your carb could be running rich. There is a screw used to make small adjustments to that. Yamaha should have a diagram of the carb so you know which one it
...adjustment screws. Just take the carb. bowl off. Do not mix up any internal parts. It is best to work on a large sheet so if you drop a small part you can find it, you do not want to be missing some ...
...links below. Good luck and have wonderful a day. Re Idle RPM too high Road Star Forum Yamaha Road Star Adjusting the idle Yamaha XV16AL Service Manual OEM parts for Yamaha YAMAHA XV1600A Owner ...
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