Ive been working on a 1980 Cb750f Super Sport. I recently purchased a new reg/rec and hit a road block wiring. The new reg recs wiring harness seems to have a jumper wire come from one of the field coils to the ground.
As far as I'm aware the field coil doesn't have polarity. The factory...
I would think if everything else is clean and valves are good, then could it be the idle screw or throttle cables? Does it idle good without throttle cable attached?