Jetting

[JordyRoo]

Hey guys, new to the forum & fairly new to banshee's, just picked up my 04 today, runs well top end but a little sluggish & flat from idle to 1/4 / 1/2 throttle. The guy i got it from said itd just been in the shop for a rejet. Im not sure what pilots in there. The receipts say 245 main though. Its got FMF expansion chambers & FMF PC2 silencers also got a K&N filter with standard airbox & lid. Its come with an FMF boost bottle but its not fitted. Elevation is around 500ft. Anybody got any ideas on what the jetting should be give or take? Thanks in advance!

[sleeper06]

You need to throw a 30 pilot jet in there, needle 4th clip from blunt end, main is good with lid on , leave boost bottle on the bench they are a gimmick

[freshsbanshee]

If it's stock carbs you can go with 27 1/2 pilot Main jet 260 270 but b4 all tht clean the carbs good and make sure everything is on tight carbs,filters n the air screws adjusted 1 and 1/2 turns not a mechanic this is just what I've ran

[Strm Trpr]

Welcome to the site!!
What oil are you using in your premix and what ratio?
If stock carbs, no such thing as a 245 main jet.
Per FMF's site, 30 pilots, 260 mains, needle stock, middle groove, air screw 1.5 turns out.

It states right in the text that there are too many variable to tuning, so this is a starting point.

 

Due to you having the airbox and lid, I recommend 27.5 pilots, 260 mains, needle clips middle groove and 1.5 turns out on your air screws.

You want the snappiest rev off idle.

If you end up < 1 turn out on the air screws, then increase pilot jets 1 size.

 

 

[mike0chek]

sleeper is rite, ditch that bottle son