The jets and needle in the yamaha kit are super rich, so if you go that route, plan on buying jets and a needle or a jet kit separately. I'm running a 45 pilot, a 165 main and a OBDWR needle in the 4th position with 2 turns out on the air/fuel screening good results at the same altitude. I have a stock pipe with the peashooter removed and the snorkel out of the mailbox. The yamaha kit has a 175 main and a 50 pilot in it. I don't recall which needle. The bike ran ok, but no with snap with that setup. Others seem to like the JD jet kit just fine, but I choke on the prices, since my parts cost $15. I will say that getting the carb in and out on this bike is difficult,so you want to get it right the first time!
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