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Join Date: Nov 2007
Location: Chandler, Arizona
It would be easier to fix the venting problem. If you have a CA model it is super easy, just pull off one hose. If you have a 49 state model, pull off the vent hose at the tank and blow through it to make sure it is open. If it is, then the vent is plugged somewhere between the cap and the hose fitting. Remove the screws on the back side of the cap, and remove the valve, put the screws. Remove the runner grommet at the bottom of the filler. There is a small protrusion on the cap that goes into that grommet. Now blow through the tank vent fitting (a piece of hose helps) and if air comes out through where the grommet was, then the tank should be venting ok. A "hissing" noise at the gas cap is a sure sign of venting problems. All gas tanks should be vented directly to the atmosphere, so they do not develop pressure of a vacuum inside.
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