• Required reading for all forum users!!!

    Welcome!
    Register to access the full functionality of the GSResources forum. Until you register and activate your account you will not have full forum access, nor will you be able to post or reply to messages.

    A note to new registrants...
    All new forum registrations must be activated via email before you have full access to the forum.

    A Special Note about Email accounts!
    DO NOT SIGN UP USING hotmail, outlook, gmx, sbcglobal, att, bellsouth or email.com. They delete our forum signup emails.

    A note to old forum members...
    I receive numerous requests from people who can no longer log in because their accounts were deleted. As mentioned in the forum FAQ, user accounts are deleted if you haven't logged in for the past 6 months. If you can't log in, then create a new forum account. If you don't get an error message, then check your email account for an activation message. If you get a message stating that the email address is already in use, then your account still exists so follow the instructions in the forum FAQ for resetting your password.

    Have you forgotten your password or have a new email address? Then read the forum FAQ for details on how to reset it.

    Any email requests for "can't log in anymore" problems or "lost my password" problems will be deleted. Read the forum FAQ and follow the instructions there - that's what we have one for...

  • Returning Visitors

    If you are a returning visitor who never received your confirmation email, then odds are your email provider is blockinig emails from our server. The only thing that can be done to get around this is you will have to try creating another forum account using an email address from another domain.

    If you are a returning visitor to the forum and can't log in using your old forum name and password but used to be able to then chances are your account is deleted. Purges of the databases are done regularly. You will have to create a new forum account and you should be all set.

what line on the tank goes where on a GS750 E 1980?

  • Thread starter Thread starter pnedac
  • Start date Start date
P

pnedac

Guest
I am rebuilding a 80 750E and I am confused about where the line from up between the tank goes. Onbe of course is the fuel line, but I am not sure about that other one. Does it go to that second (vacuum?) nipple on the petcock or somewhere else? Also if it does go somewhere else then what DOES go on that second nipple on the petcock.

Any help or advice is greatly appreciated.

Pnedac
 
The BIG one goes down to the fuel tee between 2 and 3 and I believe on CV carbs the vac port is on the back of number 2...little brass barb there??? If so that goes to the little port on the petcock. Has been a long time since I have fiddled with CVs...thus the fuzzy memory.
 
pnedac said:
I am rebuilding a 80 750E and I am confused about where the line from up between the tank goes. One of course is the fuel line, but I am not sure about that other one. Does it go to that second (vacuum?) nipple on the petcock or somewhere else? Also if it does go somewhere else then what DOES go on that second nipple on the petcock. This is the correct routing for your 1980 GS 750,

Any help or advice is greatly appreciated.

Pnedac
Click to expand...

You have 3 hoses. Two off the petcock and one off the tank itself, The one on the tank is is a vent hose (correction), it is actually a drain line from the fuel sending unit, It catches fuel if the seal starts leaking and routes (left side) down and under the seat. Keep the line away from the exhaust side. The two on the petcock are to the carbs, the larger hose goes inbetween #2 and #3 carbs to a fuel T, the smaller hose is a vacuum hose that goes to a brass fitting on the #2 carb. You also have two vent hoses coming off the carbs between #1 and #2 and between #3 and #4, those route to under the seat as well. Actually they go under the seat mounts, there is a space there between the seat mount and frame.
 
Last edited:
I have a 1978 GS 750 with the earlier carbs (not CV carbs). Where do I find the port to connect to the vacuum port on the petcock? Please let me know.
 
I hate to resurrect a Lazarus thread but BassCliff that link is the best I have found anywhere for routing fuel and vacuum lines. I am putting my 81 750L back together today and realized i didn't note where each line ran to. Thank you a lot.
 
Last edited:
You must log in or register to reply here.
Back
Top