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Join Date: Nov 2007
Location: Chandler, Arizona
Be careful you don't wind up with a crankcase full of gas. It sounds like the float needle valves are not sealing. But, also there is no way for gas to to get into the carbs without either the engine running, or prolonged use of the started, to open the vacuum operated petcock.
I would first drain the carbs, remove the fuel lines from the tank, fill the carbs full of Seafoam through the fuel lines, let soak 24 hours, drain out the Seafoam, but everything back, and see what happens. If it STILL does it, it's time to remove the carbs, give them a good cleaning, and probably replace a few parts. Jerry.
I am a motorcyclist, NOT a biker.
1997 Vulcan 750, purchased about a week ago
2006 Sportster 1200 Low
2013 Royal Enfield Bullet 500, converted to carb
2001 Yamaha XT225, heavily modified
2004 Honda Rebel 250
1979 Vespa P200E
2002 Vulcan 750 parts bike
1994 Yamaha XT225 parts bike