I have just started fitting the loom to my 2003 R1 5pw engine and i have matched virtually all the loom to the 2003 wiring diagram USA in the Haynes manual, however there are two plugs with 20 wires between them that i cannot find in the diagram and the rectifier has three white wires and they are black in the diagram, i have been told that white wires for the rectifier are for USA spec.

The part number i have on the loom is 5pw-82590-10 but i cannot find a wiring diagram for this part only a new loom.

What diagrams has anyone else used please.

Dave107

I used a mixture of the haynes and yamaha R1 service manual. The colour between the 2 and the actual loom differ but by a process of ilimination its easy enough to work out

Im sure i just answered this?!

Found this very helpfull,

http://www.robcollingridge.com/kitcar/design/engine/electrics.html