need help with jetting for 06 with hrc kit and 2 bros slip on

[trx450Rrider]

i just got the 2 brothers slip on for my 06 450r which already had an hrc kit in it. i have the hrc jets in it and i was wandering if i would need to change them from adding the 2 brothers slip on on it. i just rode it for acouple seconds and it sounds perfect. no back firing or anything. seemed alittle harder to start. doesnt that mean its running alittle rich down low. also it said that they suggest a 172 main and needle 6th clip and i think the hrc jetting is different.
i was thinking because of the hrc header and stuff the jetting is different from what 2 bros reccomends

[tltcracing]

you should be pretty close as you are but i am no expert.

[trx250rkid]

ok it is running lean so i am thinking that i should put the recommended jetting in and it will be fine probably

[GIXXER1KR]

I would leave it jetted the way the HRC kit says to.The HRC header and muffler mods flow as good as a slip on!!!I just put in my HRC kit and Slip on and no problems!!!!!!!

[KrazyKeith]

Originally posted by GIXXER1KR
I would leave it jetted the way the HRC kit says to.The HRC header and muffler mods flow as good as a slip on!!!I just put in my HRC kit and Slip on and no problems!!!!!!!