Yesterday I was riding my 2014 Kx250f and while I was riding in 3rd and 4th gear holding half throttle there was a lot of crackles and back fires so I put the bike away and noticed that my header pipe was glowing red so I turned my bike off and then a bunch of coolant leaked out. Any possible reasons this could of happend and how I can fix the back fire. Thanks
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1990 kdx 200 sr after market expansion chamber up grade
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I'm no 4 stroke guy but I'll give it a shot.
Was the coolant leaking out of the overflow? If so it was probably running hot, maybe lean. I've seen header pipes on 4 strokes glow red before so that's somewhat normal but with the backfiring and coolant overflow it would deserve some more investigation.
Was the coolant leaking out of the overflow? If so it was probably running hot, maybe lean. I've seen header pipes on 4 strokes glow red before so that's somewhat normal but with the backfiring and coolant overflow it would deserve some more investigation.