dirtstalker
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- May 20, 2012
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I have a Pro-circuit t-4 slip on with a uni-filter. It had a k&n on it when I got the quad and it ran fine. I put the uni-filter on and now it pops at higher rpm's while riding. Never done that before. Un-modded airbox by the way and all stock. Not sure what the jetting is, haven't checked. Is the jetting messed up with the uni vs. k&n? If so, where would be a starting point? Quad runs fine until it gets into higher rpms. Any help would be appreciated!