I have noticed when I rev the engine about a quarter to half the time it will bog down and backfire. It almost wants to die and occasionally it will die. I can't think of why it would do that and it has done it since I bought it in October. Any suggestions would be helpful.
Revving prolem
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Assuming your still stock, I would lean towards the lean settings on the EFI especially a California machine. Mine would pop and stall alot until I put a EFI controller on it. I'm sure somebody else here may have some other insight or thoughts on this as well. Start off by pulling your spark plug and post a good clear close up pic here.
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1,888 Posts
I would agree. I know that quads sold in California are set way lean to meet emissions standards. Keep a close watch on your spark plug. You will find many places on the web that show what a lean plug looks like as well as rich and normal. Even without the big 3 mods, a good EFI controller is a good idea if just to correct the lean condition.
roadkill
Thank you for the help i guess i will take it to the dealer Saturday i did buy the 3 year extended warranty. and the only mod i have done is the 13t sprocket and so i am 100% sure that is not the cause =). If i do buy and install a pcIII would it void my warranty?
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