22.5 pilot jet, 87.5 main jet, start with the needle clip in the middle position, and the pilot screw 1 1/2 to 2 turns out. That should get you started, then fine tune it from there. If you really want to know what the actual factory settings are, you would be best off getting a repair manual, you should probably have one anyway if you are going to be working on it yourself.
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Yours truly, sincerelly, love always, Josh aka The DirtDemon.