Fix Fault Power Max

lack of power max speed 20 mph. would do 55 plus.will rev up to 10,000 on stand but then you try to set off and it sounds more like a 4 stroke than a 2 stroke which is what the bike is

i have an aprrilia sr50 ditect fuel injection model and all of a sudden like with in a hour it has lost power max pulling speed is about 30 what would cause this i had checked spark plug took off the ... more

i am looking for diagrams of the throttle assembly fopr the power max 260 ascooter. throttle cable broke and wonderingf about replacing my self .

its starts but takes a while, then when i get it goin its not getting full power at top end its like its holding back when i want to get max speed. i would be greatfull if some1 can help plz

Looking for someone to tell me about one which seems to have broken the rider tab off the points, it was backfiring right before that, and no power. Changed the points to chevy, but now no go, backfir ... more