jetting with a new airfilter

[450rboy]

should you jet your quad after you get a after market one.

[goldrims04]

no unless u modify ur airbox(cutting holes in it)or running the lid off the air box.my set up is i cut 2 3inch holes towards the back of the air box lid and used a uni filter i had to rejet it but i noticed some more power and better throttle response hope this helps (but if you run a k/n filter i dont knowif u need to jet it. this is just my set up and it works well)

[Diedrich]

airfilter u probably wont have to....i know i tried running mine with the lid off and it ran like $hit...so if ya do any box mods you probably will have to rejet

[MAD450r]

with just the filter added you'll be fine as others said. But if you remove your lid or modify it. You'll need to adjust your fuel/air screw. Depending how far out you need to go will tell you if you need to jet up some.

From what im told every 3 turns on the fuel/air equals 1 slo-jet size [pilot jet]

Hope that helps some.

[450rboy]

thanks for all the help guys