This is becoming a saga ( last wire standing )

[Gsx1100er]

400FJ.  pickup lead from from engine to CDI.  has a 4 pin block on the end which connects to the CDI unit

Brown wire....... check pin 1

Blue wire..........Check pin 2

Yellow green wire........pin 3        Where the flock does this wire connect to ??????     no compatible connectors anywhere near CDI unit ?

The OSS collective is my last hope as no one in the known universe seems to be able to answer this one

This is the last wire of the harness connections

Bag of Sweeties to the correct answer

 

Gaz

[Joseph]

Yellow with green tracer or

Green with yellow tracer ?

 

On OSS bikes, the first option is related to the starter system

But if its coming from the engine pick up lead/area, and it is indeed green with yellow tracer, it's sounds like its the oil pressure sender wire ?

Edited December 29, 2023 by Joseph

[Gsx1100er]

the green yellow does not come from the engine, its just a short wire in the cdi plug end. it just comes out of the cdi unit.  oil pressure switch is connected elsewhere in the loom.

[Joseph]

Green yellow going to the neutral switch maybe linked to a cut off system ?

Hard to read on this diagram but ? 

https://i244.photobucket.com/albums/gg3/alex23_4/GSXRWiring-UnsureComponentsMarked_zps8ca5bd89.jpg

Edited December 29, 2023 by Joseph

[Gsx1100er]

I'll take a photo of the plug end tomorrow and advise the cdi wire colours.

its a two plug cdi. one plug is 6 pins  output( 4 in use central two pins not used) . i would imagine the 4wires from these pins go to the coils.

the  other plug is a 4 pin ( input) from the pickup. blue, brown and the green yellow. one pin not used.

[Gsx1100er]

well, as the old harness had been butchered i finally decided to strip all the old sheathing off to see what was underneath. guess what ? a cut off wire taped into the loom. The very wire i thought didn't exist. i now have my connections !!