hmf jet size ?

[a-1]

i just got a hmf sport series slip on for my 400ex what size jet does it require ?

[2004exrider]

whats your location, elevation? what other mods do you have done to it? HMF will usually send you a jet with the pipe though if you bought it brand new, so id check the packaging for it.

Jimmy

[a-1]

i just ordered it i dont have it yet. just wondering what size jet it requires. if it comes with a jet that would be great. i live in louisville ky.it dont have any other engine mods but a uni filter.and the guy i bought it from gutted the factory pipe out and re jetted the carb. there is a flat spot mid way thru the throttle so im gussing he jetted it to big ?

[02honda]

i have one on mine and i just have a 165 main in and it runs fine but i live i missouri.

[AtvKid4Eva]

I live in Ohio and run a 165 main without the airbox lidand it runs perfect. but it might be different depending where u live.