2002 Yamaha DT125R Full Wiring Loom Diagram Needed (14-Wire CDI)

[oli._n12]

Hi, I’m trying to find the correct full wiring loom diagram for my 2002 Yamaha DT125R DE03 / 3RMM (VIN starts JYADE031) with the 14-wire CDI.

I recently bought a replacement loom from eBay, but only some of the connectors match up properly. A few plugs fit perfectly, but others are completely different, so I think the bike may have mixed-year electrics or swapped parts from previous owners.

The bike has definitely been messed around with over the years.

I’ve already checked the Haynes manual diagrams, but they don’t seem to match this loom or CDI setup properly.

I’m trying to identify:

correct CDI wiring
YPVS connections
regulator/rectifier wiring
stator and pickup wiring
sidestand relay wiring
differences between DE03 / 3RM / 4BL looms

The bike still uses the late-model 14-wire CDI setup.

If anyone has:

the proper factory wiring diagram

or knows the differences between the late DT125R looms

it would help massively.

Thanks.
Oliver

[Calum]

I'm sure someone here will be able to point you in the right direction.

What we've been seeing in recent times are a lot of DTRs being imported from Europe, these can come with subtle differences, this may be the case here.

This is the 3NC wiring diagram.

I only have a Haynes manual so can't speak for what other diagrams look like.

I have also hosted the workshop manuals here: https://dt125r.co.uk/topic/3258/yamaha-dt125r-200r-workshop-manual
https://training.dt125r.co.uk/files/Yamaha_DT125_Workshop_Manual.pdf

This may be useful.