Fuel line hook up

[Walkeracing960]

I'm getting fuel pressurization on my seadoo. I pulled off the line that vents and checked it and it seems to vent like it should. My question is the fuel return from carb and the fuel vent tube hooked up in the wrong spots? The gray line is the vent line. And my seadoo is a 2000 GTX 951 carb model

 

[Seadoo timebomb]

The fuel return from carb can go to either 1/4" hose barb on fuel baffle. They are the same. If line is still grey tempo, then change out to regular black automotive fuel line. Just dont hook return line from carb to the vent line itself.

 

[Ryan727]

Going clockwise from the electrical plugs, it goes:
1. Reserve (larger inlet)
2. tank breather/pressure relief
3. Main fuel line (larger inlet)
4. Carb return

The smalls can be flip flopped. If the larger ones get flipped, then your selector with have RES as main ON, and ON as RES.

You baffle is marked just under each inlet for RES and ON (It may say OUT)

 

[mikidymac]

The Vent can stay the Tempo lines as not fuel is transported in it. As others have said the side of the baffle is labeled for each fitting.

 

[Walkeracing960]

Okay thank you all. So it appears they are all hooked up correctly and that the vent out is working as I can blow compressed air through it. But the other day when I took my gas tank lid off it flew like 5 feet. Where would you guys look next?

 

[Ryan727]

I'm not sure you should be pressurizing it so much. I just pull my carb return line and blow into it. After a few seconds I can hear my vent lines start to whistle. I've got a 99 GTXL, and the vent line outlet is right near the fuel selector on the outside of the ski, hidden behind a black trim piece.. You should hear it depressurizing for a good 10-20 seconds if you blow enough air into fuel tank.

 

[mikidymac]

Most of them have a pressure relief that should release at about 3 psi. it is the one near the rubrail, the other vent is a check valve that only lets air in, not out.

 

[Walkeracing960]

Correct, the bottom one let's air out the top one does not. Would would be causing the pressure issues if the valve is working though?

 

[mikidymac]

You should have some pressure in the tank, at whatever the relief valve is set at. If the relief is working it's fine.

 

[Walkeracing960]

Last time I went to fill up the gas cap shoot off a few feet. Even through the relief valve seems to be working I dont belive the cap should have done that.

 

[mikidymac]

If it is hot out and the fuel vapors expand it will. If there is too much pressure then the relief isn't working correctly.

 

[Walkeracing960]

Tested it today, i took off the carb return line and blew compressed air into in and nothing would come out of the check vavle. But if I took the gas lid off it would almost shoot off so it had plenty of pressure. What's strange is if I blow air right into the check vavle it seems to work. Is it safe to say the check vale is bad though?

 

[Ryan727]

I would think it only let's air out, not in. I'm no expert tho, but that's usually how a pressure release valve works.

I've never tampered with mine, hell they may even be backwards on mine reading this post (my pressure comes out by fuel selector, not hull bumpers).

Is it possible to switch the valve direction?

 

[Bill-H]

What's strange is if I blow air right into the check vavle it seems to work. Is it safe to say the check vale is bad though?

When you say "blow air right into the check valve", How are you doing that?

 

[Walkeracing960]

Taking off the vent line and blowing low compressed air to check vavle.

 

[Ryan727]

Taking it off from the baffle? Make sure the baffle nipple is clear.

 

[Walkeracing960]

I do I get that check vavle out. I don't wanna pull it out the wrong way. I looked at it for a minute last night on my way in the house and didnt see what is holding it in place.

 

[GGuillot]

Going through the fuel system on the 21 yr old GTX, I had both vents gummed up, spray some carb cleaner in the vent valves and blow air through them. The gumminess from the old fuel vapors in the out valve raises the pressure threshold. It eventually takes more pressure to lift it off the seat, so instead of 3 psi it'll jump to 9 psi. That's why only blowing through it is deceiving, it goes right back to the sticky valve seat.

 

[Walkeracing960]

How does this get removed

 

[GGuillot]

How does this get removed

Spray penetrant, anything like WD40 on both sides of it, gently push in from outside the hull with a #2 phillips head screwdriver and it should pop out.

 

[Walkeracing960]

So all ot does it slide out and push in? That's strange it holds water out so well

 

[GGuillot]

So all ot does it slide out and push in? That's strange it holds water out so well

Sort of, it's 2 pieces, the rubber grommet tightens against the hull when you push the plastic valve in it. You can't install it as one piece, same thing as removing it, separate it from the grommet.

 

[Walkeracing960]

Okay thank makes since thank you for your help.