
There are timming marks on flywheel and the case for the magneto that have to be inline. There are 2 or 3 marks on the cam sprocket.
Turn the engine in the direction the enine turns when running. Line up the timming marks on the flywheel and case. Line the 2 timming marks up on the cam sprocket parallel with the top flat part of the head that is next to the cam sprocket.
If there are 3 timming marks on the cam srocket the third mark points up when the other 2 are parallel the the top flat on the head.
turn the engine over 2 full CRANKSHAFT turns (same way engine turns when running) and check that the marks line up. :smiliethumbup:
don't forget to reset the timming chain tensioner