Jet SIze

[BranMan]

Hey Guys i just bought a white-Brothers e-Series exhaust and i was just wonderin if anyone could tell me what size of a jet i need if any jet is needed Thanks

[04'400ex'er]

You will need to rejet. be more specific with your mods such as: slipon or system, aftermarket filter or stock, airbox lid or not, and any other motor mods. Those are a must to know.

[parts eeter]

just go up 1 or 2 on the pilot and 2 on the main and tune from there.A little fat is better than lean for sure.

[BranMan]

It is just a slip-on, and i do have an aftermarket k&n filter and no air box lid.

[04'400ex'er]

Start with a 155 main and around a 42 pilot. From there I would try and richen the main up a size at a time until it bogs and then back off one size. If you get any popping at decel you will be lean on the pilot and will need to go to a 45 but Im pretty sure you can play with the a/f screw while at a 42 and be right. Also do a plug check on this. That should have you pretty close to where you need to be.