Where is the carberator on a 2003 CR125?
wow your stupid if you dont know that
In the old days of carberated engines, it coud happen through the carberator, with the timing being off just enough to allow by pass from the valves back through the carberator. Through the tail pipe, gas fumes build up in the exhaust system and are ignighted. Either way it indicated an undesireable out of tune engine.