I am helping a friend put together his CB500T. I'm new to this motor and he has limited mechanical knowledge. The head is on the bike, cams in, cam chain riveted, tensioner off. The problem is the cam chain isn't on the crankshaft gear. With the head on and the cams in, I tried to catch the crankshaft gear with the cam chain. I wasn't having much luck. A friend/mechanic recommended I go ahead and put the master link in and that the chain could be rolled onto the gear with the tensioner out. I've tried and tried to roll the chain on. It will snag the chain, but slips off. Does anybody have any suggestions? Do I have to break the chain, remove the head, and lift the jugs? Or is it possible to go in from the side by removing the flywheel? Or is there a technique to rolling the chain on the gear that I am not aware of? Thanks in advance!