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billy the kidd

one more jetting question (should be quick)

8 posts in this topic

i have an 07 wr 450 that has all of the uncorked mods,, with a fmf powercore 4 , and had been rejetted, and has always ran great,, today i put a mega bomb header on to replace the stock header, my question is do i need to rejet again for the addition of the header, or should it be ok,,,, thanks again ,,

just a note ,, it seemed to be a little on the rich side of jetting before the new header not bad just safe,,

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really ,, 60 views and the answer i get is ride it ,,,,wow thanks a lot for all the help,,,, i just figured that some one out there had done about the same thing ,and knew weather or not i would need to rejet,,, whatever

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All bikes can run differently to the same mods. The only way to know how YOUR bike is going to react is to ride it and find out.

That said I doubt a header will make a whole lot of changes, maybe a tweak of the fuel screw.

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The megabomb will lean it out a LITTLE, probably not enough to have to touch jetting outside of fuel screw (If you don't have a adjustable one....get one...)

If you were a LITTLE rich to begin with, your probably good to go....but as Tribal said above.....the proof is in when you ride it.......

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thanks that is just what i was looking for,,,, i know that every bike is different,,, i was just looking for a rough idea,,,, thank you all again ,, i will ride it to double check and i do have an adjustable screw,,,,

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really ,, 60 views and the answer i get is ride it ,,,,wow thanks a lot for all the help,,,, i just figured that some one out there had done about the same thing ,and knew weather or not i would need to rejet,,, whatever

So what, would you just change jetting with out riding it first? :)

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no i was just hoping that someone might be able to tell me what i might be able to expect before i started,,smart ass

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