gas cap - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 4 (permalink) Old 10-12-2011, 12:36 AM Thread Starter
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gas cap

soI have been fighting an issue with my bike for a bit that i thought was just a dirt carb but it seems to me the gas cap. i cleaned the vent line and no luck. when im riding it will lose the back cylinder and then run on just the front for a little then die. then it will somtimes restart on the front and the rear will kick in if you rev it really high. well the last time i had it out it died and I opened the gas cap and restarted it thinking mabey it would help and it did it was fine. so i closed and got on the highway to go home and it died opened it agian and road home with it open just fine.... so my question is do they sell a gas cap rebuild kit? or do i need to get a new one and how do i make my lock work with it?
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post #2 of 4 (permalink) Old 10-12-2011, 01:08 AM
Crap, I WAS in 5th gear.
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I haven't messed with my gas cap as I have a CA bike and just removed my canister line and used a long hose running under the bike (to atmosphere.) According to Jerry there is a rubber O-ring in the gas cap that can swell shut- you will want to replace the o-ring. Some people just remove the o-ring, but that can cause gas to seep out a little, especially when full.
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post #3 of 4 (permalink) Old 10-12-2011, 01:48 AM
If only it had 6th gear..
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take the cap off your tank then remove the screws on the underside of the cap (careful, there are several springs that will come off, and a little silicone check valve) and clean all the orifices. Lube the lock mechanism with Tri-flow and you should be all set. If you cleaned the vent line you just got a clog in one of the holes most likely. My cap was a mess and that tri-flow did wonders. Haven't had a problem since.


Jetted, shaved & coastered
Home made under-tank single filter
Converted ACCT's to manual (thanks wib714)
Dual vac lines on petcock (my cure for ticking)
LED tail/plate lights
Relocated helmet lock to license plate

Added stuff:
Customized hard bags w/ lights
Chrome levers
Hellcat windscreen
LED running lights
Home made 'Vita-Volt' meter
Foot rests on engine guard

Hmm....she was on the back when we left.... ??
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post #4 of 4 (permalink) Old 10-12-2011, 08:14 AM Thread Starter
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ill try it thanks
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