I have recently replaced my CDI on my 83 RM250 (no spark). I tried starting it (with the old plug still in it) and flooded it. I drained the excess fuel out, put new plug in it and fired it up. It was running ok for a minute or so - revved up ok, then it just died (like no fuel). After that, every few kicks I would get a backfire out the exhaust?? I have checked the flywheel - thats ok. There are no cracks in the intake boot, reeds are good and I have pulled the carby down and cleaned it.
When I pull the plug out, it is covered in fuel. Pretty sure floats are ok - the bike ran fine until the CDI **** itself.
The only other thing I changed was my fuel mix from 40:1 to 25:1. Could this be making a difference?
Any ideas???
When I pull the plug out, it is covered in fuel. Pretty sure floats are ok - the bike ran fine until the CDI **** itself.
The only other thing I changed was my fuel mix from 40:1 to 25:1. Could this be making a difference?
Any ideas???