White brothers exahust plz help!

[rockcrf1989]

just got a new white bros carbon fiber exhaust with titanium header and was wondering if someone could help me with the jetting. Cant find anywhere on the internet about what to change with the jetting to give it the gas air mixture. anything will help. thanks guys!!

[rubbersdown]

Put it on and ride it first. it may not even need to be jetted. But if it does its going to need to go a tad richer but not much.

[sledbiker]

jet slightly richer if needed at all i have a white bros on my 06 250 and i have not rejetted and its just fine

[rockcrf1989]

yea i put it on and it pops and spits blue flames. change the main jet up one or two?

[rubbersdown]

If its popping that bad go up 2 then try it again. When is it popping though? at idle? on acceleration? on deceleration?

[rockcrf1989]

right when i start it up and its idleing i havent even tried t ride it yet, i dont wanna **** something up it sounds horrible. does anyone know the stock main jet for 08 250f and what i should go to? thank you

[tvalliere220]

go up 2 sizes on the main and 1 or 2 on the pilot its more or less just a guessing game

[rockcrf1989]

so it says my stock main jet is a 130 but the next size up is a 178? thats i can find anyway? where do i get a jet thats only a little bigger then a 130?

[tvalliere220]

it goes by 2"s and 5"s so like a 132 or 134 main

[RedRider31]

That's got to be frustrating. My '05 didn't need anything at all when I put the same exhaust on it.

[rockcrf1989]

Where do i get them?

[rockcrf1989]

where do i get them? yea man its so frustrating a