Hi everyone, i have a ‘91 vulcan 750 and I’d been trying sync the carburetors. I’ve already cleaned them but im been messing up whit the screw between the carburetors, and when i started it up I realized that it was idling very bad, the front carburetor it seems to be ok but, the rear one, is backfiring when down shift and popping when idling and some times when the bike is at full warm and i ride about 10 miles she try to cut it off but never cut off. Please Help is my daily drive to work.!
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