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Drives and runs fine. After a few hours,rpm is good, but does not translate to power to drive train. It will operate in4 wheel drive) Pulled primary and secondary. cleaned, checked belt(only a fewhours). tested the wet clutch by turning to left, spins freely, turns to rt andlocks (it is suppose to). If it was belt, primary,secondary, the problem wouldbe constant. Will the wet clutch ck out as ok on a cold test, but still be theproblem when it gets warm? Running synthetic oil.
 

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Drives and runs fine. After a few hours,rpm is good, but does not translate to power to drive train. It will operate in4 wheel drive) Pulled primary and secondary. cleaned, checked belt(only a fewhours). tested the wet clutch by turning to left, spins freely, turns to rt andlocks (it is suppose to). If it was belt, primary,secondary, the problem wouldbe constant. Will the wet clutch ck out as ok on a cold test, but still be theproblem when it gets warm? Running synthetic oil.
Only thing I would think is if you are running energy conserving oil that once warm causes the clutch to slip. Just an idea if you could check the oil bottle for that.

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What kind of bike is it?
How many miles are on it?
Have you changed the oil recently? If so, what kind of oil did you use?
Is there any noises coming from the back end or near back of the engine?

A little more information can help us help you better.
 
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