Carb leaking fuel


Information and questions on GL1500 Goldwings (1988-2000)
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Drenthe
Posts: 10
Joined: Thu Nov 07, 2013 9:13 am
Location: Sioux Falls, South Dakota
Motorcycle: 1997 GL1500 Goldwing

Carb leaking fuel

Postby Drenthe » Sat Mar 29, 2014 10:01 pm



I had my carbs rebuilt last week and mounted them on my bike last night only to find a major fuel leak coming from the three way plastic connector shown in this photo. One side of that little square box that the three hoses connect to is gone. The break is so clean that it makes me think that it was originally two pieces. Fuel just dumps right out of the open side when the bike is running.
I don't even know what the piece is called so i am having a tough time looking it up. Any help would be greatly appreciated.
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ct1500
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Motorcycle: 1988 GL1500
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Re: Carb leaking fuel

Postby ct1500 » Sat Mar 29, 2014 10:24 pm

Those 2 hoses are the fuel lines. You have the wrong tee installed there or it is broken, there is a tee with an open side and is for the fuel bowl vents. I see from the picture your fuel bowl vent lines are not standard or have been hacked with (the little screw clamp on left carb of picture).
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Drenthe
Posts: 10
Joined: Thu Nov 07, 2013 9:13 am
Location: Sioux Falls, South Dakota
Motorcycle: 1997 GL1500 Goldwing

Re: Carb leaking fuel

Postby Drenthe » Sun Mar 30, 2014 8:22 am

Thank you! I think i have connected the hoses wrong. That T is the fuel bowl vent you speak of.
Going to have to find instructions on the reconnect.

Drenthe
Posts: 10
Joined: Thu Nov 07, 2013 9:13 am
Location: Sioux Falls, South Dakota
Motorcycle: 1997 GL1500 Goldwing

Re: Carb leaking fuel

Postby Drenthe » Sun Mar 30, 2014 11:20 am

Does anyone have a photo of the carbs with the hoses hooked up correctly?

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ct1500
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Re: Carb leaking fuel

Postby ct1500 » Sun Mar 30, 2014 9:27 pm

Show us the tee that is leaking as I do not think it is the one shown with the fat hoses, turn that tee over to show the hole.

There is supposed to be a smaller tee for the vent hoses which is not shown in your picture that does have an open side to it. Under no circumstances is the smaller open tee supposed to leak fuel unless the float bowls are flooding.
This is what I do
Local and need repair help with your 1500, Valkyrie or ST please PM

Drenthe
Posts: 10
Joined: Thu Nov 07, 2013 9:13 am
Location: Sioux Falls, South Dakota
Motorcycle: 1997 GL1500 Goldwing

Re: Carb leaking fuel

Postby Drenthe » Mon Mar 31, 2014 9:03 am

Yes, it is the tee under the one that is shown. I have the tip of the screw driver pointed at it. Its very hard to see.
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ct1500
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Re: Carb leaking fuel

Postby ct1500 » Mon Mar 31, 2014 9:16 am

The 3rd hose off that tee if there just hangs loose down below under frame.

Carb bowls are flooding and float adjustment or float valves need servicing. A remote possibility for the leaking is that a high pressure fuel pump could have been installed as a replacement. A fuel flow test per the manual would alert you to that though. With the pump running there is more or less just a dribble of gas out the open fuel line. The pump runs when cranking engine over.
This is what I do
Local and need repair help with your 1500, Valkyrie or ST please PM

Drenthe
Posts: 10
Joined: Thu Nov 07, 2013 9:13 am
Location: Sioux Falls, South Dakota
Motorcycle: 1997 GL1500 Goldwing

Re: Carb leaking fuel

Postby Drenthe » Fri Apr 04, 2014 6:11 pm

I pulled the carbs out and had a shop go over the work they did on the carbs the first time. The mechanic took the carb apart and rechecked everything.
Background on this bike. It had set for several years, i had it running but i couldn't top 70 on it and it also cut out. It did not smell of gas and there was no evidence of it leaking. I then had the carbs rebuilt. Later i mounted the carbs on the bike, left the air box off and started the bike. It ran fine with the exception of fuel flowing rapidly out of the right carb bowl and escaping thru the tee with the vent hole. I shut off the bike and it quit flowing. Any advice?




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