400ex jetting suggestions

[honda01400ex]

hey guys i have an 2001 400ex that has a pro design air filter,fmf titanuim pipe, and j.e piston

the bike seems to run good now and seems to ride good

does anyone have any jetting suggestions?

what main jet? ext thx:)

read up...
http://www.jetsrus.com/FAQ_jet_kit.htm

[live2surf]

soo im very new to quads, just got a 2003 400EX. i was just woundering how can you tell if your bike is running lean or rich? is there a device that i need to hook up to read this. i took the end out of the stock muffler, do i need to rejet it? it smells way more gassy now.

[live2surf]

soo im very new to quads, just got a 2003 400EX. i was just woundering how can you tell if your bike is running lean or rich? is there a device that i need to hook up to read this. i took the end out of the stock muffler, do i need to rejet it? it smells way more gassy now.

[VTredneckgames]

you dont have to rejet when you pull the spark arrester out.

[rob_990]

Originally posted by live2surf
soo im very new to quads, just got a 2003 400EX. i was just woundering how can you tell if your bike is running lean or rich? is there a device that i need to hook up to read this. i took the end out of the stock muffler, do i need to rejet it? it smells way more gassy now.

you can look at the plug

[honda01400ex]

hey live2surf

not trying to be jerk but make your own thread i was trying to get help on my jetting problem not wanting to get people you with your problem on my thread

thx very much

[live2surf]

ya i was going to and tried. sorry for messing up your thread. it wont let me make a thread. says some bull****

[honda01400ex]

o ok sry about having trouble good luck :)