I have picked up the new toy - a 92 MC21SP. Fairly standard, with the usual signs of wear and tear for a 15 year old bike.

The good signs are that it appears to be a genuine Rothmans MC21, not a bits 'n pieces import/rebuild. It has a set of Tyga ss pipes and jetted to suit (according to the previous owner anyway.....), a drilled airbox with filter (my preferred setup).

Not so good is the dry clutch has been converted to a wet clutch arrangement using the existing cases (although I don't think my girlfriend is a member of the dry clutch appreciation society, as she will be riding it too). I will source a standard R cover for this to tidy it up. It also has single ring RM pistons, which I will change back to stock shortly. Each of the locks are different - I thought I could pull the barrels apart and swap the pins around like I did on my old RG. on closer inspection this doesn't appear quite so straight forward as first thought. Has anyone done this?
It has 36000Kms - high, but as I plan on keeping it for a while - I was going to up for a new crank at some stage anyway.

Anyway, the first problem I want to fix is the neutral light on the instruments - it doesnt work and there is no voltage at the connector. Looking at the wiring diagram, the wire goes to the PGM unit. Is there any other likely thing to check (where is the GPS?). Which connections/wires do I check with the multimeter on the PGM (the light green/red wire and???).

Any help would be appreciated guys.

Scott