Jetting Survey

[SandShark400]

A DIY jetting article was sent to me.. What I want to do is compile a list of common mods + what you are running for jetting... I'm going to make a list of as many setups as I can, so people can use them as a baseline when jetting...
So, what I need is for you to list;

if your quad is a 300/400...
engine mods...
airbox mods...
exhaust mods...
what air filter you run...
rough altitude you ride at...
main jet (specify OEM or dynojet or brand name)...
needle position (specifiy OEM or dynojet or brand name)...
pilot jet size...
pilot screw position...

Please include as many details as you can.. I think if we can come up with a decent list of mod/jetting combos it will give everyone a rough idea of where to start when jetting there quads!

Thanks to everyone who helps!

[IanCFitz]

2002 400ex
engine mods: none
airbox mods: enlarged the snorkel opening and cut it flush with airbox, removed choke
exhaust mods: HMF full system
what air filter you run: Curtis Sparks
rough altitude you ride at: 1100
main jet: Keihen 165
needle position: OEM stock position
pilot jet size: Keihin 42
pilot screw position: 2 1/2 out

It might be a god idea to disable your sigs for this thread...

[underpowered]

if your quad is a 300/400...
-2000 $00ex
engine mods...
-Wiseco 11:1 88mm piston (426), Hot cams stage 2 (old one),
airbox mods...
-No lid w/Outerwears cover over box.
exhaust mods...
-HMF slip on
what air filter you run...
-K&N
rough altitude you ride at...
- Approx. 1000ft
main jet (specify OEM or dynojet or brand name)...
-OEM 178 MJ, With airbox lid on a 168 MJ
needle position (specifiy OEM or dynojet or brand name)...
- 2nd clip from bottom
pilot jet size...
-45 pilot
Air/fuel screw setting...
-3 turns out.

[hauck400ex]

2005 400ex

K&N Filter
Airbox lid off
Wiseco 11:1 Stock bore piston
Hotcam stage I Cam
Choke removed
HMF Slip-on
Altitude - 1000 ft
Main Jet - Dynojet 195
Needle - Third clip down
Fuel Screw - 2 1/2 turns out

[2004exrider]

2004 400ex
engine mods- Hotcams Stage 1
airbox mods- Stock
exhaust mods- HMF slip on
what air filter you run- K&N
rough altitude you ride at- 800
main jet- Keihin 165
needle position- Stock (3rd clip)
pilot jet size- Keihin #42
pilot screw position- 2 1/4 turns out
Stickers- around 6 lol

[jak1389]

2002 400ex
-416cc, hot cam stage 1, port and polish, 3 angled valve job, crf450 cam chain
-K&N filter lid on
-HMF sport series full exhuast
-approx. 1400ft
-main 160
-pilot 40
-3 turns out
-oem needle, 3rd clip from the top down

[jeremy_283]

2005 400ex
engine mods: weisco 10:1 piston 404cc, hotcams stage 1
airbox mods: aluminum airbox, no lid
exhaust mods: yoshimura tri oval full titanium system
what air filter you run: K&N
rough altitude you ride at: 1500
main jet: dynojet 190
needle position: dynojet needle 3rd from top
pilot jet size: Keihin 42
pilot screw position: 2 1/2 out

[flauge]

engine mods: none
airbox mods: ehs racing lid
exh. mod: wb e series
air filter: wb power filter
altitude: close to sea level
main: 170 dynojet
needle position: dynojet 3rd from top
pilot jet: still stock
pilot screw: 3 1/2 out