Pressurized gas tank...

[Spike]

Ok it is getting MIGHTY cold around these parts.  It got down to 32 degrees F this morning.  What I notice is that when I ride to work, about 20 miles, the bike heats up.  Now when I finally get to work or get home it is nice and toasty as the 'Busa should be.  The problem is that after sitting for about 5 minutes I hear a high pitched whistle coming from the garage.  I have to go out and pop the top on the gas tank to let the pressure out.  A lot of pressure.  Is this normal?  Should it be vented?

Thanks,
Spike

 

[ike]

Is the garage heated?

 

[Spike]

No it is not. It is attached to the house but not heated.

 

[DaCol.]

Your tank IS vented. If not, when you used the fuel the inside pressure would deform the tank and the fuel would NOT flow. I would check the tank breather hose (page 4-51 in service manual) and see if its kinked. You also might need to check the fuel pressure and if it's high (normal 43 psi) check:
1) Clogged or pinched fuel return hose
2) Fuel pump check valve
3) Pressure regulator
4)Check and tighten fuel pressure check bolt to 7 lb-ft (manual page 4-52)

But it really sounds (no pun intended) like a kinked hose somewhere.

Well

since it's winter that's a good start cause you've got plenty of time. Hope you find it  

 

[ike]

Thats a good one.

 

[ike]

Make sure the fuel tank breather hose is not pinched.

 

[ike]

Right side of bike below oil fill plug held on by clamp. One hose is the drain and the other the vent.

 

[Spike]

Sweetness, I will do it tonight. Thanks!

 

[ike]

Good luck.

 

[heavybusa]

good info guys.

Spike let us know what you find.

 

[psycobusa]

yeah sounds like a kinked hose to me also

 

[chrisjp]

mabey she's trying to get your attention of why you stopped playing with her

 

[mymaster]

Normal,  mine does the same thing going from shade to sun, been doing it since I bought the bike, it's coming from the gas cap.  Means you got a tightly sealed tank.  Don't keep letting the pressure out and don't worry about it!
When you hear it, you know it's doing it's job and thats a good thing!

 

[Spike]

Well since I had no time to do it last night I dropped into the local dealership to have them take a look. I described the behavior and they stated they have heard that from a few people and that in this area where the temperature is so diverse that this is not uncommon.

I asked about the above items that all of you mentioned: hoses, fuel pressure, etc. and they said that if I like they would take a look at those things. They checked it all out in about 1.5 hours and everything checked out. I guess it is normal for around here! Thanks everyone!

Well either it is normal or Chrisjp was right, she wasn't done with me playing with her (har-har, good one)

Thanks guys, you rock.

 

[dadofthree]

(chrisjp @ Nov. 30 2006,02:25) mabey she's trying to get your attention of why you stopped playing with her

kinking his hose is a little off the chain man.