Originally Posted by Ludford
Ok so the siezing at a certain point isn't the engine. For some reason when the master link gets to a certain tooth on the engine sprocket it stops and wont go allow the sproket to turn any more.
Oh, ok, forget what I said---haha, It sounds like the chain is your problem, thank goodness! Try to take the master link off and put it together again. If you can't get it to stop getting stuck you probably need a new chain. The chain has to flow over the engine sprocket smoothly without getting stuck.