Studboy

Thinks he can ride
Dec 2, 2001
1,818
0
I just got the KX310 running and broken in, and I was wondering what jets everybody was running so that I could get a baseline.
Right now I am running: 160 Main, 40 Pilot @ 4200 ft. setup for race gas (C12).

The bike seems a litte bit rich on the pilot right now, but the bike seems to fall off the pipe easily (easier than my stock YZ250) which makes me believe that either my dented up pro-circus pipe (ha ha I stole that one from Rich :nener: ) is messing up the power (I have a new pipe on the way) or that my main jet is lean. The bike just had a complete bottom end rebuild as well so that is all good.

The bike starts easily and runs smooth, but the power just isn't all there.

Thanks! :worship:
 

MarkSims

Member
Feb 9, 2004
87
0
I live in Atlanta so this may not apply. I ended up with a 152 main, 50 pilot and a N3WF needle with the clip in the 2nd slot down. I use VP C-12. The N3WF needle is leaner in the first 1/4 throttle than the stock N3WE. Makes the power come on smooth. The N3WE put a lag in the powerband.
 

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