View Full Version : jetting a 400ex
400EXTRA
07-25-2006, 01:48 PM
i have a 2004 400ex with a supertrapp ids 2 exhaust if i jet my bike will it make it a gas hog.
with just a pipe it will not make a big diffrence
2004exrider
07-25-2006, 06:52 PM
You wont even notice a difference.
Jimmy
plkmonster2
07-25-2006, 07:10 PM
If you are under 5000 ft, I'd move up to a 152 main. Maybe get a 42 pilot. It will be a tad lean unjetted. I'd get a filter soon too.
GPracer2500
07-25-2006, 07:10 PM
Even when jetted for intake/exhaust mods the EX is reletively easy on fuel consumption. Like was said above, you probably won't even notice the difference in MPG.
xtullyx16
07-25-2006, 07:48 PM
I thought the supertrapp was only for 2002 model and down??
jsmith2232
07-26-2006, 12:19 PM
It won't make a noticable difference...
400EXTRA
07-26-2006, 01:47 PM
yea they make them for 99 to 06 i know the pipe dont make a diffrence but it sounds better.
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