My 1985 VN 750 (86 engine) is flooding out at idle. It is blowing black smoke but runs fine at 5k rpm. It leaked a big pile of gas all over the garage and the fuel is not shutting off when the engine is off.
Could it be that his petcock seal and oring is old, worn, and shot.
I had this problem, changed them and it fixed the leakage,
found a 18 dollar kit for the two o-rings and seal from a canadian company,
if you think that this might help, let me know, and i'll go threw my visa bill to find the company's name and website.
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