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changing premix ratio and affect on jetting
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[QUOTE="TimberPig, post: 1027298, member: 66421"] Yes, you are right, it is well beyond the math capabilities of virtually everyone here, but given the skills of an experienced fluid dynamics engineer, and the information you mentioned, it isn't a particularly difficult problem to solve. The simple take home message is that the changes in air/fuel ratio from a premix ratio change are very small in relation to the amount of oil added or removed from the mix. You are better off leaving the extra oil in the mix for lubrication, and jetting the bike to obtain the correct air/fuel mix ratio. Trying to richen the air/fuel mix with premix will result in fried cranks long before it results in significant changes to the air/fuel mix. Trying to lean it out with more oil in the mix will coat spark plugs in oil before it achieves the desired reduction in air/fuel ratio. [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
changing premix ratio and affect on jetting
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