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General Category >> Rubber Side Down! >> Brief hissing noise?
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Message started by justaweso on 07/13/15 at 14:38:28

Title: Brief hissing noise?
Post by justaweso on 07/13/15 at 14:38:28

Need some direction here. Got a 97 Savage, chopped it down with the BCB kit and cleaned out the carb last week to get it running after it sat idle for three years. It runs well now though rpm a little high at idle (I'm still adjusting that).
I was going to take it in this morning to get my tags renewed but found a new problem that I can't isolate:
When I tilt the bike upright off the stand I hear a quiet hissing sound for about 2 seconds, then it's silent. This is when the bike is both cool and warmed up - and I've only heard it when the bike is turned off. It also doesn't happen every time I stand the bike up...
For the life of me I can't find it because it's so short and hard to reliably reproduce the sound.
All I can tell is that it's forward of the saddle. So I'm looking at engine, fork, breaks, tank, and tire. I think I've eliminated the tire and it does't seem to be coming from the tank either.
Has anyone run into something similar? If I can't track it down this week then I may call defeat and take it to a shop :(

Title: Re: Brief hissing noise?
Post by Tocsik on 07/13/15 at 14:41:20

Well, you say it isn't coming from the tank but it sure sounds like the typical hiss from the filler cap. Try pressing down nice and firm on the gas cap while taking it off the side stand and see if it still does it.
Might need a new gasket in the cap.

Title: Re: Brief hissing noise?
Post by justaweso on 07/13/15 at 14:44:44

Thanks I'll give that a shot when I get home today

Title: Re: Brief hissing noise?
Post by Dave on 07/13/15 at 15:33:02

I would bet it is the fuel tank vent. My Ninja 250 whistles like a Tea Pot when you park it in the sun!

Title: Re: Brief hissing noise?
Post by Steve H on 07/13/15 at 17:38:55

My ninja hissed at me the other day. First time I've heard the fuel tank vent on it.

Title: Re: Brief hissing noise?
Post by Serowbot on 07/13/15 at 18:17:53

I do that sometimes... :-/...

Title: Re: Brief hissing noise?
Post by Art Webb on 07/13/15 at 20:24:48

I miss my Ninja
It never hissed at me though

Title: Re: Brief hissing noise?
Post by runwyrlph on 07/15/15 at 13:17:04

"Hissing" noise, you say? ...

https://www.youtube.com/watch?v=l8rxJRsINU4

Title: Re: Brief hissing noise?
Post by Tocsik on 07/15/15 at 15:51:06

sunovabitch!

don't (motorcycle) tread on me, indeed.