here is my 750F finally idling at 1100 rpm. bike is 76 750F, so are carbs. motor is 78 750F3
carbs are set at needle middle notch, airscrew 3/4 turn out, 45 pilot, 110 main, stock airbox, titanium wrapped kerker 4 into 1, plugs gapped at .035 with full dyna ignition
here is youtube link
http://youtu.be/Q4pyPD2pf2s