06 YZ250 jetting off-road

[Luv2crash]

Whats the best jetting anyone has for riding between 5000' and 7000'? Mine runs bad on the bottom and doesn't want to idle at all. N3EW in leanest position

[yathump]

Whats the best jetting anyone has for riding between 5000' and 7000'? Mine runs bad on the bottom and doesn't want to idle at all. N3EW in leanest position

What pilot jet? where is your airscrew set at? what main jet do you have(not that it will help your idle just for overall knowledge)? What temperatures do ride in?

What type of riding do you do, what kind of throttle range are you primarly in?

If it stock jetting the 06 came with a 50 pilot, airscrew at 1 turn out, a N3EJ jet needle, clip position #2 and a 178 main, if you still have the 50 pilot in there ditch it and try a 48, then possibly go to a 45 if need be

Read this also

https://www.thumpertalk.com/forum/showthread.php?t=412662

[SUnruh]

huh?

i have a list of all jetting since the begining

06 ELQ clip 3 178mj 42pj

[yathump]

huh?

i have a list of all jetting since the begining

06 ELQ clip 3 178mj 42pj

Thats what came in my bike stock, if the huh is directed at me

[Luv2crash]

175 Main 48 Pilot screw 1 3/4 i believe 65 degrees out. Slow single track, fast single track just good variety or riding. Gnarly pipe

[tp3dxf]

175 mj and 45 pj works well for me. That is with a Gnarly and FWW. Adjust needles as necessary I have found the second clips works well.

[Yroc]

I use 172 mj and 45pj with clip 2nd from the top and 1.25 turns out on the air screw for 4000-8000 and 60-80 degrees. It seems to run fine at all those altitudes and temps, but more so lower and colder. Which puts me jetting rish for the most part and I feel safe with that.