Fuel line pressure requirements question


Information and questions on GL1100 Goldwings (1980-1983)
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Fulcrum
Posts: 181
Joined: Thu Mar 07, 2013 1:54 pm
Location: The Falls, Texas
Motorcycle: 1982 GL1100

Fuel line pressure requirements question

Postby Fulcrum » Tue Apr 16, 2013 10:33 pm



So I am replacing the fuel line from the petcock to the carbs and the brake line from the rear reservoir to the master cylinder. The fuel line that was on there from the tank to the pump actually seems pretty new and ok. It is a Goodyear 50 psi line. I have bought a new fuel filter that is bigger and longer than what was on the bike previously. My question is, from the fuel pump to the carbs is there a minimum pressure line requirement? The best fuel line that O'reillys had was Gates Greenshield line, 50 psi also. Which is what I bought. I know these are not fuel injected bikes but the original line from the pump to the carbs was wrapped with a fabric weave, I'm sure for protection, and feels very strong. Just want to make sure I don't install a substandard component on my bike. Also my brake line was pretty swelled, I'm guessing thsi is a 5/8th's line? I'm assuming there is nothing special about it pressure wise considering it's just a feed line. Any help is appreciated. Thanks.



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virgilmobile
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Re: Fuel line pressure requirements question

Postby virgilmobile » Wed Apr 17, 2013 9:11 am

Other than the fuel injected bikes,the wings use a fuel system that ranges from 3 to 4 psi.
Use new clamps.

foxhound0511
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Joined: Wed Jan 16, 2013 12:52 pm
Location: Princeton, Ma
Motorcycle: 1983 Gl1100 Standard

Re: Fuel line pressure requirements question

Postby foxhound0511 » Thu Apr 18, 2013 12:24 pm

virgilmobile wrote:Other than the fuel injected bikes,the wings use a fuel system that ranges from 3 to 4 psi.
Use new clamps.


I agree with Virgilmobile, that pump is basically a lift pump because your carbs are higher than the fuel tank. It should be a nominal pressure of 3-4psi. Carbureted systems don’t take high fuel pressure they just need enough to fill the bowls.
:geek:

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Fulcrum
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Joined: Thu Mar 07, 2013 1:54 pm
Location: The Falls, Texas
Motorcycle: 1982 GL1100

Re: Fuel line pressure requirements question

Postby Fulcrum » Fri Apr 19, 2013 12:20 am

Cool, thanks for the info guys.




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