i call a few dealer where i live...they have 2 type of jets they sell one hex shape other round i need to know what type the 400EX uses..or do i have to order them from online if so where i need to rejet before this weekend before i go riding my 400 running way to lean to run with out a change of hurting the engine

 

Lucis, you're killing me bud! Email me and I'll get you fixed up...especially if your coming to WNF this weekend.

 

it has a hex shape jet your dealer should have them in stock!!!!!!