- Joined
- Aug 25, 2016
- Messages
- 23
I'm in the midst of a complete overhaul of my 72 750 just got my new head bolts in last week put the head on and located the pushrods on the rockers lightly bolted the head down and spun the engine over by hand everything seemed fine until the left cylinder was on intake about half way through the exhaust valve opened slightly and then snapped shut im new to nortons but this did not seem normal wondering id it might not be properly located on the tappet any help would be appreciated
thanks dave