when i pull in and lock my clutch the bike still moves while running.. yes i have adjusted the cable tons of times and a day later it always does this problem again.. what could it be? worn out clutch pads? or the rod and bearing need to be greased?? not sure why it does it but when i peddle i always have to hold the clutch lever all the way in so it rolls kinda easy but still has drag on it.. hard to peddle that way.. some one please help.. or how can i install a centrifical clutch. i have a silverhorse 80cc well it is actually 66cc i know.. got it from bikeberry.com.. the only problem i have besides that i broke the muffler bolts right on the jug.. can you reuse the head bolts and gasket if i want to change the jug??