Hey guys my name is chris and I just got a pair of blasters on a trade. One of them is built pretty good wiseco piston, rod, and crank. Anyway I'm trying to reassemble the rest of the engine and I get to the kick start... When I set the spring and go to put the side case cover on everything turns over fine but as soon as I tighten the bolts it's near impossible to turn the engine over. Is there a spacer of something I am missing. Any help would be great thanks very much