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Dirt Bike Brands - Other
Kornfused RMX
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[QUOTE="sick 96 250, post: 968857, member: 54932"] the new top end can make your jetting change because it combusting the fuel differently then when the piston was worn a little. Every time I have redone a top end on my RM's jetting almost always needed to be redone. Sounds like it is semi rich on the top end. I doubt it is because you went to a 40:1 mix, thats what i run and I have ran 32:1 as well and there shouldnt be that big of a difference. Check fmfracing.com for jetting specs. Although they use a 50/50 mix of race gas and regular their specs always seemed to work for me when i ran 93 octane. Good Luck and let us know how it turns out. [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
Kornfused RMX
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