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.
2002 Vulcan 750. Engine out, awaiting new stator and some other parts:
CA emissions removed
Air injection removed
Left front brake removed
Decel throttle cable removed
Nanny switches removed
Honda Rebel 250 mirrors
Kawasaki extended backrest
Kawasaki saddlebag brackets
Rear turn signals relocated.
Kawasaki bolt on leather saddlebags
Headlight and brakelight modulators
WestCo battery w/tender