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fmf power core jetting??????

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Old Jul 31, 2002 | 02:35 AM
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what jets should i run with an open air box & foam filter
fmf headpipe & muffler on a 01 raptor
im at sea level & have a yamaha jet kit
155-160????? or 160-165
 
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Old Jul 31, 2002 | 02:37 AM
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its my buddy`s & its been popping & cutting out with the lid on & stock jets
 
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Old Jul 31, 2002 | 02:57 AM
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160/165 or maybe even 165/170.
 
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Old Jul 31, 2002 | 06:16 PM
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165-170 is way to thick. I used a 155-160 needles in the third slot and it ran well. It might be different for you but that is what I used to use.
 
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