OK, I've split my engine on the 79cm400 and have balancer problems. I am trying to remove the front balancer, but shaft will not come out. I did not remove the top end of the bike, and fear that one of the head bolts also holds the front balancer shaft in place, just as the rear balancer shaft is held in place by the bolt holding the oil screen. Am I correct, and if so, can I removed one head bolt and put it back without affecting the head or head gasket? If I am not correct, what could be holding the balancer?