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General Category >> Rubber Side Down! >> Gas Tank Noise
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Message started by latony007 on 10/09/13 at 16:06:15

Title: Gas Tank Noise
Post by latony007 on 10/09/13 at 16:06:15

Anyone else Gas tank make a groaning crying noise when its sitting in the garage? It goes off every few minutes. At least I think its coming from the tank. Sounds like a whine or a baby crying in the distance. I assume its air escaping or something but if you take the gas cap off and put it back on it still seems to do it.

Title: Re: Gas Tank Noise
Post by Serowbot on 10/09/13 at 16:25:38

Get that baby out of your tank!... ;D ;D ;D...

Only thing I can think of, is poor venting...
Try spraying some carb cleaner into the keyhole... :-?...

Title: Re: Gas Tank Noise
Post by old_rider on 10/09/13 at 19:04:21

LOL, yeah its gas expanding and then pushing past a seal somewhere, most likely your cap.
My little Kawasaki ninja moans and groans all the time, it actually has a little rubber valve that lets the expanding gas escape and it sounds like its moaning.

Kinda like aawwwwww....lets go out and ride some more..... aaawwwwww. ;D ;D ;D

Title: Re: Gas Tank Noise
Post by latony007 on 10/10/13 at 12:44:08

50535B4D565B5A4D3F0 wrote:

LOL, that's exactly what its saying. Leave that sport bike alone and take me out instead! maybe I can lube up the cap or something if there is a valve and it would quiet it. I don't recall it doing that when I first got it but I figured it was the summer heat causing it.

Title: Re: Gas Tank Noise
Post by jcstokes on 10/10/13 at 12:51:43

Would it have anything to do with a California emissions system?

Title: Re: Gas Tank Noise
Post by latony007 on 10/10/13 at 13:55:39

595040475C585640330 wrote:

Would it have anything to do with a California emissions system?

lol, its def. coming from the tank but that would not surprise me at all. I was just telling someone else about my other bike, it has two models, the regular model sold in 49 states and about every country, and the California model!

Title: Re: Gas Tank Noise
Post by verslagen1 on 10/10/13 at 15:03:08

Cali caps have an inlet, but no exhaust.
venting is into a carbon canister then to the carb.
I know there's a check valve in the canister that may close when the engine isn't running. causing the mewing.

Title: Re: Gas Tank Noise
Post by swedishbiker on 10/10/13 at 23:15:42

Shot a 30-30 trough the tank and the cry will be gone. A plastic decal does not the same :)