pilots and main for raptor 350

[Guest]

Yesterday my brother and I installed an HMF on my Raptor 350. Left the stock main in place, dropped the clip to position 4, didn't touch the airbox. Mixture screw is 3 turns out. I noticed it studders and pops in the 1/8 to half throttle range. I was searching the forum and found that the pilot jets may need bumped up a little to stop the miss in the 1/8 to half range. Adjusting the screw did nothing. Idle and 50% to full throttle seem fine. Would the larger pilots help this problem?

 

[2kwarrior]

That would be your needle position affecting that. It sounds like its to rich. move back to the stock position. Pilot affects Idle. Needle is 1/8 or 1/4 to 3/4 throttle and main is 3/4 to full throttle.

 

[troys3175]

why didn't you change the main jet?

 

[Guest]

We moved the clip to position 4. I'm using the stock airfilter and box. I ordered some Mikuni jets. Will probably go one up on the main, but it ran really well above half throttle with the stock jet.

 

[2kwarrior]

your to rich on your needle position. Main jet only affects 3/4 to full thottle.