I believe you are chasing a ghost rabbit down it's hole. Back up before you self-diagnosed an "intermittent no spark issue" and please answer this as...
It depends greatly on the circumstances of the loss of ignition, but I've had a rash of corroded right handlebar switches lately. Glad they're still...
Alternatively you could do what KonaRider posted just above yours... and see if it's a waste of money and time to replace it before you replace it.
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