Super M Timing

If I remember correctly, a super has only one mark from factory. Might be wrong on that, may have been MTA'a . At any rate. If the two marks are about a quarter inch apart the first one is tdc. If the first one is about one and seven sixteenths ahead of the second mark it is an added mark for 22 degree advance used to time fire crater pistons at full throttle so second mark is tdc. By doing the old wire in the plug hole you can figure it out . Of course a dial indicator and proper adaptor would be more accurate.
 

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