well from what you say im guessing you have a race pipe on it?am i right if so then the probelm is the rollers are too heavy in the variator change them to 5gram rollers and you will have a rocket ship.its a very common thing i see it all the time
adam bike doctor
October 2009
Take the carburettor off and give it a good clean. Check the air filter too.
John
October 2009
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