fullscreenaging Posted January 16, 2015 Posted January 16, 2015 This is a question from a mate. All help advise greatly appreciated. My son's got a Derbi GP1 50cc twist and go moped and it currently off the road with a problem.The basic symptoms are:Runs for a few minutes and then diesWon't restart for a few minutes and then does the sameLow on power when pulling awayI've changed the battery and spark plug and made sure the fuel filter is clean but apart from that I'm at a loss of where to go next.If anyone can give me an ideal of what to check that would be great. I asked about immobiliser, air filter, carbs & jets. Anything else I might have missed? Quote
Stu Posted January 16, 2015 Posted January 16, 2015 tell him to check the vacuum line that runs to the fuel tap it could be split and not causing enough vacuum to open the tap properly pretty common problem Quote
wr6133 Posted January 16, 2015 Posted January 16, 2015 Isn't that ped a 2 smoke? Checked the 2T oil pump (or is it premix)? If it is a 2 smoke I'd be pulling the head and looking for damage or excessive wear. Quote
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