Motorcycle Repair Questions? Ask a Mechanic ASAP
Have you tried raising the idle speed with the adjustment screw on the left side below the throttle cables? Does the bike run better with the choke fully on? If so then the slow jets in the carburetors are probably clogged from old fuel. These jets have an extremely small orifice that is very difficult to clean. I recommend replacing the slow jets rather than trying to clean them. They are part #25 on the link below.
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