alright, so i was riding around my bike the other week, and it started running on one cylinder. At first i thought it might have fouled a plug because of a horribly nasty air filter, so i bought a K&N filter, because thats all they had in stock, and when i took the air box lid off i figured out what actually was the problem, so it turns out it was the clip on the needle broke in half. Alright, so i replaced that clip (on the fourth clip from the top, like someone on this forum reccomended, unless it was supposed to be fourth from the pointy side, than that might be my problem), and put the new filter in. Well, now it seems to have like two annoying flat spots that were never there before. Has anybody ever experienced these types of problems when installing the K&N filter? thanks

 

I did with a BMC filter. I fixed it with the 185/190 jets in the K&N (Dynojet) jet kit and raised the needles all the way. That's with Jardine high mount pipes. I hear the K&N is a little more difficult to tune for than the BMC as it flows a bit better.

 

the flat spots are around 3500-4500 if i can recall. Its weird though, when i first installed the filter i didn't notice the flat spots, now its a huge freakin pain, and i can hardly ride the bike cause it bugs me so much

 

I don't have a K&N filter, but did you put the washer back under the circlip? I agree with doug, it sounds like the needles need to come up a notch (move the clip toward the pointy end).

 

haha, that might be it! I don't ever remember seeing a washer in there . Maybe it fell out or something when i was replacing the clip, haha oops. Does anybody know what exactly the size of those washers are and where i might be able to find a new one? thanks for the help yall