Just put in all new seals gaskets and pistons. Did a leak down ... results good. Put on pipes and carbs and started her up. Let it idle for about 3 min and it shut down. Started right up again and cut out . Went to kick again and it was very tight. Thought maybe pistons were seizing so I pulled the head off. Not what happened. pistons had a lil shake back and forth. pulled sator cover everything looked good. Then I turned the flywheel backwards and it spun freely. So I go forwards again , it will turn about 8 times then tighten up. Backwards half a turn will free it up then i CAN GO FORWARDS ANONTHER 8 TIMES BUT IT ALWAYS STOPS IN A DIFFERent spot. left tdc right tdc both cyl halfwy. I am tired now and its very hot so tommorow I will pull the clutch cover. Anyone have an idea of what I should be lookin for???????