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post #1 of 16 (permalink) Old 04-02-2007, 05:25 PM Thread Starter
 
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>>>need Help..gas Tank Building Up Psi.<<<<

I need some help ASAP.

I pull into the gas station after runnig the bike hard for 100 miles straight, open the gas cap it makes this suck noise then I had a geiser of gas shooting up out of my tank.

My tank is not venting for some reason, I ran the bike hard today and ran a 100+ miles back home like this, but something is not right.

Any ideas ? Gas cap ? Fuel lines ?
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post #2 of 16 (permalink) Old 04-02-2007, 06:48 PM
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Check the vent lines (little hoses down by the kickstand)and follow them up to the tank. Maybe they have gotten plugged with debris, or if you recently had the tank off you may have pinched them on reinstallation.

Eric
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post #3 of 16 (permalink) Old 04-02-2007, 06:52 PM
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those aren't vent lines. those are drainage lines. big difference.

the tank vent is in the cap. it's probably plugged. remove the whole cap apparatus and clean it very very well..
 
post #4 of 16 (permalink) Old 04-02-2007, 07:32 PM Thread Starter
 
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Ya I took the cap off tonight, couldnt really see any vent holes or anything that could clog up, I sprayed some WD40 around the seal and wiped off with a rag, not sure if this made a differance.
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post #5 of 16 (permalink) Old 04-02-2007, 07:38 PM
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Quote:
Originally Posted by Knightslugger View Post
those aren't vent lines. those are drainage lines. big difference.

the tank vent is in the cap. it's probably plugged. remove the whole cap apparatus and clean it very very well..
Sorry try again......

One is an overflow hose, one is a breather hose. If he has a California model (which he shouldn't in PA.) the vent hose will have an evap canister between the tank and the outlet at the kickstand that cleans the evaporating gasses before venting to the atmoshpere. There is no vent in the fuel cap. If there were you'd have fuel spilling out on you every time you hit a bump since you basically fill your tank right up to the cap.
:icon_stud

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post #6 of 16 (permalink) Old 04-02-2007, 07:46 PM
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Sorry try again......

One is an overflow hose, one is a breather hose. If he has a California model (which he shouldn't in PA.) the vent hose will have an evap canister between the tank and the outlet at the kickstand that cleans the evaporating gasses before venting to the atmoshpere. There is no vent in the fuel cap. If there were you'd have fuel spilling out on you every time you hit a bump since you basically fill your tank right up to the cap.
:icon_stud
**EDIT**

I think i may have found something. near the bottom of the tank, near the drain hose nipple, there is a part in the service manuel that states tank vent hose. it is much smaller than the drain hose, and appears to move backwards under the seat.

Last edited by Knightslugger; 04-02-2007 at 07:56 PM.
post #7 of 16 (permalink) Old 04-02-2007, 07:55 PM
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Quote:
Originally Posted by Knightslugger View Post
show me this mysterious second fuel tank hose you're talking about:
Hang tight, I've got the scanner running. You are about to learn something.

Eric
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post #8 of 16 (permalink) Old 04-02-2007, 07:57 PM
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yeah, i know, i just found it, though i don't think it goes to the bottom of the bike...
post #9 of 16 (permalink) Old 04-02-2007, 08:02 PM
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Quote:
Originally Posted by Knightslugger View Post
yeah, i know, i just found it, though i don't think it goes to the bottom of the bike...
I suppose you are looking at the service manual right now, go toward the beginning of the book in the general information section. It shows various cable & hose routing and if you look at the diagrams from the side of the bike that the kickstand is on you'll find it listed right down where I said it was.

I'm scanning it now through my G/F's computer but it's gonna be a minute. I'll post it up for the 03-04's as well as the 05-06's for anyone that needs this in the future.

Eric
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post #10 of 16 (permalink) Old 04-02-2007, 08:07 PM
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ahhhhhhhhh fuk... i forgot there's two side by side... son of a biatch.

Way ahead of you slick (and i mean that, it was pretty slick of you).

post #11 of 16 (permalink) Old 04-02-2007, 08:12 PM
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Ahh good, I just finished the scan but the picture you posted is of much better quality. Nice job grasshopper.

Eric
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post #12 of 16 (permalink) Old 04-02-2007, 09:27 PM
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It's the one on the left...



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post #13 of 16 (permalink) Old 04-03-2007, 06:33 AM Thread Starter
 
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Thanks guys, I will look today at this, as I just replaced my swingarm and new chain and sprockets, something may have gotton pinched off.
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post #14 of 16 (permalink) Old 04-03-2007, 07:57 AM
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Where can you get a pdf of the service manual? That would be so valuable!

Bernard
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post #15 of 16 (permalink) Old 04-03-2007, 09:58 AM
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Where can you get a pdf of the service manual? That would be so valuable!
I hear steffygee has a website... you may want to check it out.
post #16 of 16 (permalink) Old 04-03-2007, 02:42 PM Thread Starter
 
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I figured it out !!!

In the diagram that is circled in red, right under the retaining loop there is a check valve, it was clogged full of water.

I got stuck in a really bad rain storm for about 60 miles last week and obviously it sucked some water up in there.

I took the line off the tank and blew into it and crappy colored water came out.

All is well now.

Thanks guys !!
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