Rebuilt 74 bike was running great, cam chain tensioner loosened, timing got whacked out and jumped a tooth while trying to start. Kick start only. Got cam timing corrected, cam chain tensioned, valave clearances good. Leakdown seems to be ok on top end so don't think I hit valve.... Still doesn't want to start and has a major kick back. How can I dbl check timing with pamco if bike isn't running?