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moto4guy

Yamaha moto 4 250 low power

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Hey guys I have a Yamaha moto 4 250 that was running great now all of a sudden I have low power. It starts up and idles great and engine sounds fine no knocking or ticking or anything like that. I can ride it and sometimes its like you flicked a switch and the power comes back for a minute and then it goes away again. I've changed the spark plug, cleaned the carb and it made no difference. I'm thinking the stator could be going bad but id like to find out more before I spend the money on it. 

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