I don't know if this will disqualify me from this thread, but I just ordered an AP quiet core from a Ninjette member, and plan to remove the air box too. Oddly enough, when I contacted FP about the additional main jets I would need to purchase to convert to a stage 3 kit, they (Marc) seemed confused. He said he had never done one w/o an air box. Now I am confused, because they sell filters for the 250 to directly to the carbs... in fact they sell a jet kit WITH the filters. He is quick to return emails, but sometimes the responses are quick and cryptic too. Seems nice though.
Anyways, I looked at the jetting db, and it looks like most with "stage 3" setups end up using 110-112 main jets. So, I presume these are the extras I should buy? Should I get one size bigger too, just for testing and in case I need it?
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