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06 jetting problems


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ok i got to thinking and now let me riddle you this. Can i drop the needle or not drop the needle and put a biiger pilot (27 or 30) to keep the 340 mains wiht the k and n and no air box LID. Or should i go back to the 270s or 280s and just fiddle with the air screw. with the 280s in and 2.5 turns out on the air screw it is running lean on the top. all that freagin dynojet has supplied me with is 270, 280, and 340 mains wiht their needles. so i am trying to make due with what i have. i guess i am getting antysy because im tired of my buddy giving me crap on how is raptor is faster. anyways sorry about that. let me know what yall think

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You have to buy or use the right jets/needle settings for each of the circuits.

 

You don't use a different clip on the needle to overcome a large pilot, main, etc.

 

27 or 30 pilots are TOO BIG for your bike if you are keeping your airbox. the fact that you had to turn the air screws out 3.5 turns tells you that, clearly.

 

If you don't want to drive an hour away, go to sucdo.com or magicracing.com and get a pair of 300, 310 and 320 mains. Average out what it'll cost you in gas vs. shipping and waiting from an online retailer.

 

That dynojet needle should have 6 grooves total. Put the clip at the 4th groove down from the blunt end, and leave it.

 

Put the 25s in, and turn your air screw out 1.0 turns. And buy the right main jets, period.

 

One doesn't compensate for the other....pilots and air screw are idle to 1/8 throttle, then needle till about 3/4 throttle, then all mains. They blend together, but do not really compensate for each other.

 

Would you rather wait and smoke your buddy, or hurry and look like an ass?

 

You already know the 270 and 280 are lean. My guess is the backfiring with the 340 is because it is too Rich. You've answered your own question...get the right parts.

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