i think the stock mikuni main is 90 or maybe 100
its always a little safer to run a tad rich then it is lean.. but to rich can give problems too
do you have any back firing ?
ive noticed on mine at about 1/8 to 1/4 throttle, i have a fast rapid back firing that clears out once i hit full throttle.. at first i thought thats how the muffler sounded but after hearing it a few times its a super faster rapid backfire..
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