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Old 01-16-2013, 11:58 PM   #8439
Crazy Canadian
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Joined: Mar 2009
Location: Soaking up the Southern Californian Sun.
Oddometer: 2,028
Originally Posted by maverick1 View Post
Need some help.
I purchased a K&N air filter for my 2001 XT225 and after I installed it I went for a ride and the engine seemed to misfire and started to jerk when I was accelerating quickly.
I then got home and replaced the stock foam air filter took it out and it did not misfire or jerk.
What gives.
I thought with the K&N it should perform better.
When I removed the K&N filter I did notice some red filter oil drops on the mesh screen.
The only thing I can think of is that there is too much K&N red oil on the filter, but I'm not sure if that would cause the misfiring.
Any suggestions.
K&N is a more free flowing filter therefore your engine is getting more air... Needs more fuel to compensate. You may get away with adjusting your fuel/ air mixture screw but it might be time to re-jet.
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