On turn over there is compression like new with the glow plug installed. The piston sleeve came from an unused 12mm crankshaft K&B outboard. The OB started with my old K&B inboard piston sleeve, the one I wanted to replace to renew and replace an ever so slightly bent con rod. The new sleeve and piston won't start in either the OB or IB engines, when alighned to the respective exhaust port. The only macroscopic difference in the two is the OB exhaust port has a vertical bridge left from manufacturing (guessing to let the piston pin face either direction) and a fatter con rod. Timing is the same in both, making me think my old inboard sleeve wasn't the best for the tuned pipe I'm running.
