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Your best bet would be to look at a repair manual, or contact a Yamaha dealer for the info. Stock pilot is 42.5 and stock main is 95. 1 1/2 to 2 turns out on the pilot screw is a good place to start. The middle slot is a good place to start with the needle clip postition. See how it runs and make one adjustment at a time to get it dialed in. Pay attention to what your plug looks like while you are getting it tuned.

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