Quote:
Originally Posted by 04gasgas
Could this jetting run so lean that it would run like crap on the low and great on the top?
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In the bottom to mid range you are running off the pilot + air screw setting then more in the mid to a little over 1/2 throttle the needle plays a dominate role on the top (WFO) you are only running off the main jet so yes it can run great on the top while the bottom to mid is way off. As a matter of fact if you don't go above 1/3 throttle you could probably leave the main jet in you tool box with no affect. Think of it as three different circuits that slightly overlap.