Mike, the best way i can describe it is when under a load it feels like its popping out of gear for a second and varies in how bad it is. The fuel cleaner definitly took it away but he ran that tank out. I will run some more fuel treatment and see if that takes care of it again. There is a good possiblity that the carb may be the problem as the ATV has sat 3-4 weeks between him riding it(Football season). I have seen your step-by-step instruction on changing the rollers, I assume i can check for flat spots the same way?
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