The starter motor won't play.

Once again, check the kill switch, many bikes have the kill switch wired "before" the starter.

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Check side stand switch, neutral indicator switch, clutch inhibitor switch and any other electrical interlock switches.  On B.M.W. they also have a "starter relay" which prevents the starter motor from working if the engine is running. I know this is a pain, but I can't list every test on every bike. Sorry.

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Does the solenoid "click" when you press the button.

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