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DAEDALUS »
https://forums.nicoclub.com/daedalus-u128.html
Fri Sep 17, 2004 5:05 pm
The notches are little round dimples on the sprocket under one tooth. Some sprockets have 2 dimples, though, look for a dowel pin under one if that's the case.The valves don't push on the piston. On the intake stroke the intake valve is open and the exhaust valve is closed, but there might be a little overlap, so at top dead center both valves might be slightly open. The exhaust will close as the motor begins to turn.Find TDC with the marks on the crank pulley. Going with something in the spark plug hole will get you close, but the marks will get you exact.