I am attempting to do a complete tuneup on my 73 Merc 650 (ser #3664924 with thunderbolt ignition) and I am unclear on how to align the timing belt. I know that the flywheel needs to be at TDC and then I remove the timing belt pulley and belt and then align the cast tab on the pulley with a...
I'm trying to set the timing on my 1973 Merc 650 and there is supposed to be a plastic tab that comes up from the top of the cylinder head that provides a reference so that I can do the timing. I don't have one and I can't find it in the parts list that I have. Does anyone know what this part...
