• 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.

Does prime setting = fuel leaking always?

  • Thread starter Thread starter Guest
  • Start date Start date
G

Guest

Guest
Ok, I test fired my GS550M yesterday using an old lawn mower gas tank for a fuel cell. Obviously this setup has no vacuum controlled fuel flow and althought he bike ran, I had a drip from somewhere within the fuel bank. I couldn't tell for sure where as it seemed to be running along the front carb rail.

Anyway, will running a setup that uses pure gravity feed fuel delivery, say like running off the "prime" setting, always result in gas leaking from the carbs? Shouldn't the floats shut the fuel flow off once the bowls are full?

Thanks.
 
you should not get any leaks as long as everything is set correctly. try and trace where the leak is coming from. could be a bad hose joint or the float heights stuck or set incorrectly
 
First ? = nope
Second ? = Yep, floats with good fuel needle seats should hold fuel back for a while
 
no isues using the gravity feed way, and no leaks I could detect....

P1080996.jpg


P1100009.jpg
 
There has been a long standing argument about this.
Most of the owners manuals have a caution about leaving the bike in "Prime" as the carbs could overflow. Does that mean it will leak? Possibly.
Yes the carb float shut off valve should shut off the fuel once the bowl is full.
I have two bikes and have left them in Prime by forgetting not to turn them to the on or Reserve position and yes they both leaked gas. I have tried to be very careful about not leaving them in Prime again. But just recently I did, but this time no leak? Only thing I can think of that was different was bike was on centerstand where previous times sidestand. Perhaps the angle the carbs were sitting while on the sidestand had something to do with it.
If the engine isn't running you'd probably be better off just to disconnect your make shift fuel tank.
 
Cool. Thanks for all the input. That's what I figured but this is the first bike I've had with this kind of petcock setup. I will begin looking for the source of the leak. It's probably the fule line itself. There's no clamp on the carb side of it. Unfortunately, that means pulling the rack out :(:(
 
tkent02 said:
You're doing it wrong.
Click to expand...

By putting the fuel line onto the T before installing the carb rack?

If there's a cool trick for putting the line onto the T with the carb rack in place, I am all ears.
 
it is so simple, get one hand in underneath to stop the T from turning, push the pipe on with the other hand.
you do need the tank off and OK........i have fairly thin hands, i suppose if you have big hands and fat sausage fingers then i guess it could prove tricky
 
Highway_Glider said:
I saw a posting once...I never got to do it myself but.

You use a stiff wire. You push it through the fuel line then into the T fitting, Then you push the fuel line on, turning and pushing.

DP
Click to expand...

I have done this using a welding rod, anything skinny enough and stiff enough would work. A little lube helps too.
 
Neat trick! I may give it a try just because its so dang aggravating dealing with the rack. But first I need to figure out if that is indeed the source which is kinda tricky in and of itself with the carbs installed.
 
i had old 8mm fuel line with clamps leaking on the rack, there was 1 spot a long screw driver can just reach into to undo clamp on the rail, but i could not see it while i did it, i did this worked a treat with correct size fuel line, no clamps needed scroll down the post. oh and i've got 2 meters spare 7mm fuel line if any one around bris is in need of some :)
http://www.thegsresources.com/_forum/showthread.php?t=190206
 
Last edited:
tkent02 said:
I have done this using a welding rod, anything skinny enough and stiff enough would work. A little lube helps too.
Click to expand...

Taken out of context, this would be a very naughty post.


The fuel level in the carbs is high enough that if the bike is on the sidestand fuel could make it out of the vents if the bike leans far enough. Also, leaving the fuel on prime will cause fuel loss since gasoline evaporates from the carbs and will slowly replace through the PRI setting. Might not seem like much but over a few weeks it adds up.
 
You must log in or register to reply here.
Back
Top