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taldoc3

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I think I will be satified, I am running 280 jets, fmf fattys, and a pro-flow kit will i need to change the jetting, right now I cannot take my airbox lid off it bogs the shee down at low rpm's hard to get the holeshot, I want to take the lid off, whats the prob

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i can tell u yes u will need to re-jet. nomatter what u do to your bike, check the jetting always. i dont care if u change a head-light.....check the plugs....lol, jk. i have 68mm domes. u will be throwing more gas than stock to fill the needed space. if u dont rejet, it will fill that needed space with air. bad combo. lol. boom. or crackl clrackle...RUN LIKE A RAPED APE......then boom.

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Um the domes are smaller and there is less space creating more comp. and no you don't have to rejet.  :shootself:  When you take that lid off you need to rejet, go up on the mains.

407400[/snapback]

Same Thing I Was Thinking. Never Heard Of Rejetting After Changing Domes.

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i can tell u yes u will need to re-jet. nomatter what u do to your bike, check the jetting always. i dont care if u change a head-light.....check the plugs....lol, jk. i have 68mm domes.    u will be throwing more gas than stock to fill the needed space. if u dont rejet, it will fill that needed space with air.  bad combo. lol. boom.    or crackl clrackle...RUN LIKE A RAPED APE......then boom.

407389[/snapback]

I Think Mccarty Is Talking About Big Bore Domes. Then You Would Rejet.

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Um the domes are smaller and there is less space creating more comp. and no you don't have to rejet.  :shootself:  When you take that lid off you need to rejet, go up on the mains.

407400[/snapback]

 

I know on a four stroke, if you use higher compression, the general of thumb is go down one size on the main, but i dont know about two strokes.

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