My Jetforce 125 will start and run fine but after a few miles it will start running erratically?
When I look into the end of the exhaust I can see it glowing red hot?
Burnt valve maybe?Any ideas??
how's the coolant level?? the exhaust could have a build-up of carbon deposits which can glow after a run, put some petrol treatment in the tank next time you fill up. cheers buddy.
