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Timing


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My understanding of the ignition timing is that the CDI advances the timing by 17 degrees from 0 - 2,000 rpm. ... It then rises (straight line) to 22 degrees at about 3,500 rpm. It then drops to about 9 degrees advance at 10,000 rpm (again in a straight line), and remains at 9 degrees thereafter.

 

I assumed that the timing mark on the flywheel when lined up with the pointer is 17 degrees advance, since that's what has to line up on a timing light check @ 1,450 - 1,550 rpm.

 

Rare.

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Every engine react differently to timing adjustments depending on a multitude of variables. For fine tuning of timing adjustments on modded motors, a good guide is to set the timing until the soot on the center electrode climbs withing a few thousanths of the tip of the center electrode.The easiest way to check this is to advance the timing until the soot drops down on the electrode and then slowly retard the timing until the soot climbs within a few thousanths of the tip...you really need a good magnifying glass to see it clearly.....Jim

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