I have an 80 cc engine I just put on a cruiser bike and every thing looks good and tight. When I ride the bike for a while and turn it off, I notice the bike will no longer roll with the clutch handle pulled in. I then have to take off the clutch cover and remove the screw from the plate so I can loosen the flower nut on the clutch enough to let the rear wheel turn again. I ride the bike for a while and the same thing happens. I noticed after I got everything together I and moved the bike back in fourth with the clutch lever in going forward seemed ok but when I would walk the bike in reverse I could hear clicks from the motor that did not sound right. I would appreciate any help if anyone out there has any input on my situation. Thanks