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Jetting benchmark?


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2005 YFZ450. Stock engine w/Jardine slip on RT5. Anyone have a benchmark as to where to start with the jetting? Altitude of 1500 ft. I wouldn't think it would be much different than stock, but wanted another opinion.

Thanks in advance!

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if your lid is off try a 168 main jet stock needle on 5th or 6th slot down from top with ncvq needle 3rd or 4th slot from top a 45 piolt jet and 2 turns out on the air/fuel screw with lid on try a little bit smaller then a 168 main jet

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