jetting ER for sparks pipe?

[B.C.#11TRX400EX]

Im gonna buy a sparks pipe pretty quick, I have a NVCQ Needle, 55 leak jet, 42 pilot, 160 main so wat do I need to put in for the full exhaust?

[B.C.#11TRX400EX]

Called Johnny Hale and he said put the needle on the middle slot, 55 leak, 155 main, keep the 42 pilot, f/a 2.25 turns out, I have a 160 main in it, do ya'll think that'll be ok to keep it in?

[d3ktrix]

I'd leave it like it is and run it, tune it after u get the exhaust on it and see how it runs.
Changing anything before u see how it runs is a waste of time IMO.

Esp since a 155 is on the leaner side of what 06+'s normally run.

Runs good like it is now right?

[B.C.#11TRX400EX]

No bogs when u give it full throttle, I should be getting my 55 leak and NVCQ needle in today then we'll find out

[thibs101]

i have stock needle with 175 main and open air lid and she runs perfect! little bit on the rich side but beter be a little rich then lean it out and blow up the motor.

[B.C.#11TRX400EX]

Yeah true, I put the needle and leak jet in and in and it runs perfect, Johnny Hale new exactly wat to do, I prob wont change it if it runs good with the sparks pipe