What Jet

[Ex King]

I Got a 400ex with these motor mods. Lrd exhaust ceramic silencer- Uni. What jet should i get. do i have to move the clip and i really dont know how to change the jet and i was wondering if its hard to do


PLz leave a comment

[White_Knuckles]

Download the install guide (Arcrobat PDF file) from Dynojet's website (www.dynojet.com) for the 400EX. Shows pictures and explains everything but remember the jet sizes are Dyno's. If you buy jets at the dealer go 1 size small per jet that Dyno recommends for the 2-3 ranged jets you want to test with.

Search this site for average 400 jetting.

[White_Knuckles]

Edit above....

If you buy jets at the dealer go 1 size SMALLER jet that Dyno recommends for the 2-3 ranged jets you want to test with.