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little help with engine backfire
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Posted by: kidloco33

I have recently developed a backfire whenever I am shifting down in gears. I am running a completely stock quad and have never had any problems besides some body damage. Any help would be greatly appreciated as I am not the most mechanically inclined person. Thanks!!

Posted by: Jimbo M

Could be an exhaust leak where your header comes out from the cylinder. We had a leak there - can cause a backfire.

Posted by: bustedknuckle

exaust sounds like thats the prob.also how many hrs on it ? may be valves .

Posted by: sw1tched

exhaust issue, or did you take the airbox lid off / spart arrestor off? may be running a little lean...