Jetting with pipe and k&n

[Honda400EXryd3r]

I know there are alot of threds about this but i want to know what i should do not other people i have a yoshi slip on exhaust and a k&n filter with the air box lid off i just got a dyno jet jet kit so what jets should i run???

[SLSD400exGUY]

i would go with 158 main and 42 pilot

[pit/wood]

Its easy dude,Read the directions,do what it says,and you will be happy.

[LightningEX]

Ditto the above.Depends on altitude.I got my ex running a 170 main and putting in a 42 pilot and my needles on the 3rd groove down from the top.You can check my mods.I believe I fall into the below 3000 feet elevation BTW.

[Honda#4]

hey lightningex what do u mean by a bumble bee package i never herd such a thing before.

[deis]

I'm at 4500 ft and 165 main and a 38 pilot has worked great for me for 3 years with a K&N with lid off and yoshi pipe