A problem?! Surely not.

[NorthumBryan]

Sounds like you're getting close to the problem if nothing else. Keep plugging away 

[MadisonMotorsportUK]

I have a 2005 CBR125R Repsol with under 7k miles on the clock up for sale if you're interested? Just need to pop an MOT on it.

[Nagasaki]

The saga continues.

I have still got this issue and its been narrowed down to the fuel enrichment curcit. It's supposed to tell the injector to give more fuel when the engine is cold.

There is supposed to be a temp sensor somewhere that tells the ECU to inject more fuel when its cold. This is not working it seems but not entierly sure how to fix it. I did have the ECU out today and there was a little corrosion on the pins and connector so maybe thats the issue. I cleaned it up best I could but mabe I should grab a spare ECU and try it. They are only about £15-£25 on ebay.

I'm slowly getting closer to just loading a parts cannon at this bike and hope it fixes it 

[NorthumBryan]

Trial and error, it's slow but it works 

[Asmith61]

Blimey It will be like a new bike 🤣
As NorthumBryan said Trial & Error good luck 👍