DT125R FORUM

@Calum
Oh right, I was told it was an ‘89 DTR engine due to the engine numbers and its electric start so I presumed DTRE. The guy I bought then engine off said it was for Gilera SC / Derbi GPR so could be a later engine.
By oil level switch I mean the sensor in the oil tank that tells you when it’s running low. I read somewhere that it can cause the bike to not start as a safety feature.
Anyways. The engine is in a Derbi GPR frame so getting it back to “standard” isn’t as straight forward. Is the sidestand switch usually closed or open circuit to allow the bike to start?

I have an ‘89 DTRE engine which I bought an ‘89 wiring harness and electrics for to install in a Derbi GPR frame.
Anyway, it turns over but doesn’t have spark.
I believe it could be because I am using a F4FU-00 Flywheel and a 3MB-00 stator. Could this affect it? I don’t know much about the numbers but the flywheel was the only thing that I didn’t buy with the rest of the electrics.
I’ve bridged the kickstand switch, I’ve bridged the oil sensor switch. I’m really stumped… all of the electrics came off a running bike. It must be the pickup being incompatible with the flywheel?
Could anyone point me towards the right flywheel for my 3MB-00 Stator please?