I've done a bit of investigating and have a bit more info, but still no cure:

I've had a good look at the loom and can't see any obvious earthing problems.

I've disconected the 4 pin connector for the kill switch/front brake switch and bridged the kill switch wires on the loom side and the fuse blows, so I guess the kill & brake switches are ok.

I then individually unplugged the Regulator, AC & pulse generators, power jet solenoids and oil pump solenoid and checked at each stage. The result is a growing pile of blown 15A fuses.

Then, with everything connected, I unplugged the black connector from the PGM3 unit as the black/white wire from the kill switch runs into it. I switched the ignition on and the fuse did NOT blow.

I may be barking up the wrong tree by assuming that the problem lies with the immediate kill switch circuit as this switch probably powers up half the loom.

Does this mean that the PGM is the problem, or does disconnecting the black connector simply break the circuit?

Sorry to be a pain, but i'm at the end of my tether
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