underseat electrics.

[desmodave]

can anyone post a photo of their set ups please!

[jayh]

Probably pose more questions than answers,but anyway here you are. J

what the hell,while I'm in picture upload mode.

[higgy]

The 907




The 906
on both bikes the extra leads and fuse holders are for the headlights
on the 906 the extra wiring is for the lamda logger
both are hicap kit equiped

[Desmo_Demon]

Here's my '87 P750 as stock (without the wiring upgrade performed, yet)...

[desmodave]

Probably pose more questions than answers,but anyway here you are. J

what the hell,while I'm in picture upload mode.

Very different to mine!

[desmodave]

The 907




The 906
on both bikes the extra leads and fuse holders are for the headlights
on the 906 the extra wiring is for the lamda logger
both are hicap kit equiped

FANTASTIC!!!!

[desmodave]

Here's my '87 P750 with the wiring upgrade performed...

Closest to mine what is the earth for nearest side left as your sat on it???

[desmodave]

Probably pose more questions than answers,but anyway here you are. J

what the hell,while I'm in picture upload mode.

Very different to mine!

Again an earth wire this side of the reg???

[desmodave]

Probably pose more questions than answers,but anyway here you are. J

what the hell,while I'm in picture upload mode.

Very different to mine!

Again an earth wire this side of the reg???

AND the reg never sen that one???

[desmodave]

THANKS!!!! for all the photos-a joy just looking well cared for bikes! looks at first i might be missing the earth wire for something? is it the coils mine has one already where they are situated. like the upgrade makes for same place.Also each with a different regulator none same as ihad originally, 2nd rr51 what to do?

thanks again-what is that earth???

[jayh]

Ok Dave ,The black wire on my reg goes through the connector and turns into the green black wire going into the lower connector on the relay that is directly above it ,its a bit hard to see but the top wire into the relay is visible as a bluey/greeny colour,and the lower connector has two wires (both green black going into it,(one of these is connected back to the reg,I can't be bothered tracing the other one at the moment). J.

[jcslocum]

After wiring upgrade.

[PasoRoo]

Jon,

It seems your alternator wiring has melted in exactly the same interesting, chocolatey, way as mine. I recently cut the wires back to where they were halfway decent and crimped new connectors on. It went from this:

Old_wiring.JPG

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to this:

New_wiring.JPG

(214.68 KiB) Downloaded 550 times

and a photo of the complete setup for Desmodave:

DSC_00280004.JPG

(83.52 KiB) Downloaded 547 times

Although the setup is slightly different now because I installed a HiCap kit.

Cheers,

Mike

[Desmo_Demon]

Closest to mine what is the earth for nearest side left as your sat on it???

I corrected my caption with the picture above in the thread. That was a picture of the underseat electronics BEFORE I did the wiring upgrade. It was after I had done some wiring repairs.

The upper ground on the voltage regulator is for the relay. The lower ground on the regulator goes directly to the point on the frame where the negative battery cable connects to the frame. It is the green to black wire with the yellow butt splice connecting them in the second picture below.

Also, my stator wires are green because I replaced them from the engine case all the way to the regulator. The wires were in such bad shape that I had to replace them. The insulation was dry, discolored, and sections of the insulation was either missing or crumbled as I touched them. I also think I went with a little larger gauge wire than stock.

This is what some of the wiring looked like when I first got the bike...

[higgy]

Pretty typical of these bikes. Loose wires, corroded connections and burnt up insulation.
Takes a little effort but doing the work will greatly increase the performance of these often overlooked bikes.

To be fair it is typical of any 20 year old bike,including the rice burners