timing marks

78 280zcar

Cadet
Joined
Sep 15, 2003
Messages
14
How do I time a 1969 50 hp merc 500 it has a manual start with a type two ignition system. It has two timing marks on it. When putting the distributor adaptor on how do align the marks does one go to the timing mark on the frame and the other to the timing mark on the adaptor gear. Any help would be appreciated. Thanks
 
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