No low end after mods?

[AlukE]

I recently installed a k&n filter and filter airbox cover, boost bottle, billet reed cages and boyeseen torqer reeds, fmf fatty pipes w/power core 2 silencers. I replaced the stock needles and moved clip to 4th postion and 270 jets. The quad runs excellent....very fast.....from 3rd gear on but no low end like it prevously had. The engine is stock btw. Do I need to replace a pilot jet as well? Any help on this matter would be greatly appreciated!

[AKheathen]

i can tell you that those pipes generally like 27.5 pilots, for starters. first, do a plug chop. you can find out how by researching on this site. you are probably lean on the mains/needle. start with the mains, airscrew @ 1.5 turns from seated, and play with the needle to get the 1/8-3/4 throttle range running good, then adjust the airscrews for idle and off-idle operation. i'm sure it's all in the jetting.

[AlukE]

Thanks...will do!