View Full Version : 400ex jetting
jelrod05
05-02-2010, 07:34 PM
i have a stage two cam, 10-1 compression piston, uni air filter, two brothers slip on,rev box and i am running a 142 dynojet main jet,42 pilot, dynojet needle on middle clip, and pilot screw 3 screws out.
does this sound about right
bkelley
05-02-2010, 07:42 PM
Might be a tad lean with those mods. Should be pretty close, though. What does your plug look like?
jelrod05
05-02-2010, 07:49 PM
what would u reccommend
bkelley
05-02-2010, 07:55 PM
Well I can't really recommend anything without knowing how it's running or what the plug looks like. Like I said, you're probably pretty close with the 142 DJ and three turns on the f/a.
jelrod05
05-04-2010, 03:59 PM
my is black around the base and looks like the electrode is dark gray color.
JOHNDOE83
05-04-2010, 04:28 PM
Try the FAQ's section at www.jetsrus.com How to read plug's.
Powered by vBulletin® Version 4.2.1 Copyright © 2025 vBulletin Solutions, Inc. All rights reserved.