stripped main jet!

[True rider]

Umm, The stock main jet on my 250ex is stripped and i cant remove it from w/e its screwed on 2. Even b4 it was stripped, I have no clue what to do? I also need 2 know what that jet is called that is under the main jet were the main jet screws into.:(
Thx for any help.

that jet "under the main jet" IS the main jet, the thing the main jet screws into is called a needle jet.

oh i think i misunderstood, if u mean the jet beside the main jet then it is the pilot jet

[True rider]

ok, on a 250 it doesnt have two main jets it has the main jet screwed in2 the a long brass? It has a few holes in it andthe needle goes in2 it.