Swap the carbs and find out! It'll only take 10 mins on an MC21!
You can also swap the RC servo motor, again, only 10 mins... 5 if you don't hook the cables up (for testing purposes).
It's unlikely to have a dead PGM if the Valves cycle to "Hi" when you disconnect the T.P.S., but if you eliminate all the other (cheaper) parts first, you don't really have much to loose. Other than that, find someone who can try your suspected PGM on their bike.
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Andy.
NSR-WORLD.COM
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