need some help

[trict_out]

My friends 400 has a yoshi slip on and a kn filter hes wonderin if a stage 1 jet kit will work if not what jets would u guys reccomend? thanks

[400ex men]

you do not got to re jet wid a yoshi slip on a 400ex

[crandles]

I would rejet. Stage one will work great. Exspecially with the k&n.

[hondarider2006]

Don't waste your money on a jet kit.....Go to the dealer, or give C&D racing a call, and order stock type jets. I would say around a 152-155 will be perfect. Also installing a 42 pilot will help starting problems a lot, but if you do that, you will need to back down on the air/mixture screw a turn or so.