jetting (list yours please)

[bustedtire]

those with a 400ex:

please list your jet size, where your needle is, turns out on your air mixture screw, your elevation, and your mods.

i started with the 165, 3rd notch, and 3.5 turns out. i'm about 1200-1500 ft above sea level. i have a k&n, no airbox lid, wb e-series slip on, wb rev/timing box.

thanks,
chuck

Hmf slip on

170 STOCK mj
3rd needle clip
3.25 turns out on air fuel mixture
K&n with 4 uni vents in lid.

[ewalker302]

You need to say if its a Dynojet Main too b/c they dont have the same #'s.

FMF MegamaxII slip on
Uni filter
Lid on
DJ 146 Main
DJ needle stock position
Below 1000ft
2.5 turns out

[cals400ex]

x-6 exhaust, uni filter, no choke, no airbox lid
elevation: a few hundred feet above sea level
160 keihin main
45 pilot
2.5 turns out on fuel skrew
stock needle and position

[Chanman420q]

FMF PC4 Slip on
No Air Box Lid
UNI Air Filter
155MJ Klein
Stock Needle
2.5 turns out
Below 1000 ft

[Chef]

13:1 460 Piston, Megacycle top end cam, 2.5 mm oversized intake valves, 1mm oversize exhaust valves, titanium valve springs, serious port and polish, FCR41 Carb, Big Gun Race Series Exhaust, heavy duty cam chain, Carillo Rod, Lightened Flywheel, Reshaped combustion chamber, milled head, thin gaskets, Vortex splitter thingy in the bell of the carb, no spark arrestor, etc etc

205 Main, 52 Pilot, Needle directly in the middle. Air screw 2 turns out.

[trailburner]

White Bro's slip on [no spark arrestor] K&N jet kit,stock filter,no lid...
160 K-main
needle stock setting
air screw- 2 turnes out

[bustedtire]

taking the a/f screw out leans it out, right?

[trailburner]

I'm allmost possitive turning the air/ full screw in leans it out at idle??

[bustedtire]

i thought it controlled air. if so, then turning it OUT would lean out the mixture.

if it controls fuel then turning it IN would lean out the mixture.

oh, can you get the main jet mixed up with the pilot easliy? after i jetted mine it started right up, idled, ran, no break-ups. nonetheless, fuel injection owns!

[nky400]

150 main, 42 pilot. I think we left the needle where it was. I have an FMF Powerbomb, FMF PC4, UNI filter and two UNI vents in the lid. Not real sure on elevation, I am in northern Kentucky - 15 minutes south of Cincinnati.

[cals400ex]

Originally posted by bustedtire
taking the a/f screw out leans it out, right?

thats is not correct. turning in the skrew leans the bike out. certain carbs are different than ours. our skrew is a fuel skrew, other carbs have an air skrew. turning out on ours richens the mixture, turning in leans the mixture out. on some others with an air skrew, it is opposite.

[cals400ex]

also, you won't get the mainjet mixed up with the pilot jet. both jets have #'s on them. your pilot will say 38 if it is stock. your stock mainjet will say 148 given that you don't have high altitude jets in from factory. the main jet is about half the length of the pilot jet. the main jet needs to be removed with a socket (so it has a hex head). the pilot jet is put in with a flat blade skrewdriver.

[bustedtire]

thanks.

like i said...fuel injection owns. give me a 255 lph pump, 92 lb/min injectors, 2800 hz mass-air sensor, piggyback fuel computer, 25 psi, 115 octane and i'm in business.