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Wayward Son

how to confirm your pilot circuit setting

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It seems like the most common jetting issue that comes up are pilot circuit related.  The following is a sure method to choose the needed changes.

With the bike warm and idling, turn the fuel screw in till the idle drops/misses.then go back out till the idle peaks/smooths. This should happen between 1 and 2.5 turns on a fcr carb and 1 and 3 turns on a CV.

If you end up at less than 1 turn, you need a smaller pilot jet. More than 2.5 (or 3 turns on a CV), you need a larger pilot jet.

Choose the appropriate size and retest.

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