I have been riding motorbikes for years from mini motors when i was younger scooters on the road when i come of age and then my XR 110 and now my beast KTM 250 SX-F with a few mods like a boost bottle to increase acceleration, off road tires and FMF fatty racing exhaust. She has been running well since purchase until now a few days ago my KTM started spluttering like it was running out of fuel but unfortunately this was not the problem, I have been looking at some classified ads KTM exhaust
sites to find out some information to see whether the exhaust was the problem i don't think it is, there is barley any rust let alone holes and it sounds the same as normal when it's not spluttering. The spluttering occurs in the top end of gears and when i let go of the throttle it is driving me crazy!!!
Any help would be greatly appreciated!!