Hi there I am new to the forum and have recently bought a 2003 Beta rev 3 250cc but its running very badly on low revs, I had the carb off and cleaned it in a sonic bath, had a new cut off jet fitted and had a new set of reeds.
It was running better until my son fell off it and it instantly went back to running badly again, has any one got any ideas what it could be?
Thank you
Phillip