Re: pull start problem 50cc dirt bike
Okay, good ..... at least that's okay ...
Hmmm .... Try taking off the pullstart, and looking to see if the coil has slipped down. You should be able to rotate the flywheel by hand, so see if there are any skidmarks or scrapes on it. The airgap between the flywheel and the coil should be the thickness of a standard business card. If not, reset by loosening the coil bolts, slip a business card down between the two, push the coil snug against the card, and retighten the bolts. Remove the card by rotating the flywheel.
Now, if that's not the case, you may need to pull the head off the bike to check the piston and rings. Hopefully, it won't come to that, but be prepared to do so, just in case. It may be the flywheel / coil airgap, which is a fairly easy fix.
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