another frickin jetting question

[drifterx]

I searched, and didn't find much. I just got an hmf slip on, used, and i'm gonna get a K&N and rejet soon. HMF says on their site, to go up 5 sizes on the main, and raise the needle clip up 1. I'm assuming that's just the pipe, and stock filter. What would i need with the K&N, and no airbox lid? My elevation is approx 1202ft. Thanks!

[Cody_300ex]

I ended up having to use a 128 MJ on mine. It was quite rich but when I put the header on and took the choke out it leaned it out a little bit.

[drifterx]

Ya, i'm gonna get a wb header sometime, but it'll be a while. My buddy had an hmf w/ a k&n, and he ran it closed airbox, he jetted up 6 sizes in the main (not sure what that's at), and up 1 needle clip, but it was really, really rich he said. He did use dynojet though.

[drifterx]

Anyone else?

[big_saxy]

i'm running a 128 main, needle clip up one and one size bigger pilot with hmf slip on, k&n and open air box and it seems about right

[chazekxt]

my old 300 had fill pipe no lid k a n filter 125 main i think it was a little lean also in ks at 1174 ft.:D

[chazekxt]

my old 300 had fill pipe no lid k a n filter 125 main i think it was a little lean also in ks at 1174 ft.:D

[bwamos]

Aye. Pipe + K&N w/o lid is a 125-128 main, needle up 1 position. Stock pilot should be fine.