my mate has got a keeway flash 50. shit bike i know but he wants to know how to make it go faster i.e. where the restricters are and how to take them out. any help cheers !
see if the cdi has a pink wire in it and if it has then disconnect it and see if its faster afterwqards,also the carb has a restrictor in the top of the diaphragm cap to stop the throttle slide lifting all the way up.