i know u hate these

[journeyman]

short and too the point....
gettin my 05 400ex back this week....puttin all my stuff back on....what main jet should i go with????and should i change my needle since the 05 needle only has 1 clip???

i dunno what size is in there stock but try like 2-3 sizes bigger and go up from there

[jak1389]

try a 160 main, and go from there.

[journeyman]

anyone got any answers about the needle...i have been running just a new main, pilot and fuel adjustments but no needle....should i buy a kit like dynajet so i can get a new neddle?

[journeyman]

anyone got any answers about the needle...i have been running just a new main, pilot and fuel adjustments but no needle....should i buy a kit like dynajet so i can get a new neddle?

[K_Fulk]

I would just go to a dealer and get a 99-04 needle.