Finishing up my rebuild of this vintage bike, I realized I'm a little stuck on ignition advance setting. Unlike an RM, the YZ has no match marks between the O.D. of the stator plate and the engine case. Instead the yz ROTOR has a dash mark as does the ID of the stator plate . Obviously they are to line up at some piston position. Hoping some old YZ owners might just be able to give me the spec and procedure. Are the hashmarks to line up at TDC or a "x" demention BTDC ? No guessing here please .... only out of your manual or your experienced brain.
Thanks much guys, dave