[Jetting w/ K&N AIR FILTER] - ATV Riders Forums - Honda, Yamaha, Suzuki, Kawasaki, Polaris, CanAm, Arctic Cat, Kymco ATVs

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Jetting w/ K&N AIR FILTER
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Posted by: 450RgETiRdONE

What do you guys re-jet to with new k&n airfilter? No after market exaust, just 13tooth gear, thats it!

Also should i just take my bike to the dunes see how it performs bone stock then put my mods on it?

What ya think!

Posted by: MixMasterMike

sorry but if you're looking for some type of performance gain with just an aftermarket air filter you are mistaken. I personally would rathe rhave the stock airfilter on there b/c the K&N's are junk and let in dirt & dut to your engine. Leave your jetting alone if you leave the airbox lid on. If you take the lid off then try a 165 main

Posted by: 450RgETiRdONE

Well no thats just to start. Thats all that my bro has done its not going to be left stock, thats not why i bought this machine.

He has airbox lid off, rejet, air filter and after market muffler?

I just wanted to know if i should take it out before i put all this stuff on it, and then if i didnt i never knew what it would of been like stock!

You recommend UNI filter???

Posted by: spindles

k+n isnt the best filter for extreme dusty conditions but i found the air box design is so much better than the 400 it should be ok.

i have not been able to see any dust get past mine yet. i would jet up about 10 over stock. can't remember the exact # but try around 145 ??

Posted by: MixMasterMike

quote:
Originally posted by spindles
k+n isnt the best filter for extreme dusty conditions but i found the air box design is so much better than the 400 it should be ok.
i have not been able to see any dust get past mine yet. i would jet up about 10 over stock. can't remember the exact # but try around 145 ??

stock is 118