Hey guys, im new here and seem to be having trouble with my 2 stroke mounted on a mountain bike. I had it running just fine the day before yesterday. I would get pedaling and pop the clutch and than id have to pedal with it while giving it juice for a few pedals and it would sputter on and we would go. I stored it away and got it out today and now it doesn't wanna start. It wont even fire and try to go it only works if im force pedaling it. Im sure its not the spark plug what else could it be?