• 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.

Wiring Diagram

  • Thread starter Thread starter new_gser
  • Start date Start date
N

new_gser

Guest
Does anyone have a wiring diagram for a 1986 GS550ES? I am in the process of rebuilding one and I have two black/white wires and one yellow/black wire going to the fuel sending unit (under the tank). The two black/white wires are tied together and one was destroyed. The insulation is pretty much melted away and bare wire is showing. The worst part of the damage is close to the sending unit, leading me to believe something is wrong with it. My biggest concern is why are there two black/white wires together. I think there should only be one. I checked with a meter and they are tied (somewhere in that mess of wires) to the negative on the battery. I cut the tape from the wiring harness and everything appears to be factory. ](*,)
 
Now what!!

Now what!!

Well, I called a local shop and they sent me a wiring diagram. I replaced the bad wires and ohm'd out with a meter. I am getting .2 to .4 ohms from all the connections I made to frame ground. I put fuel in it and my new sending unit is working properly, it read about 1/4 tank with a little over a gallon in it. Now it will not start. This was a running bike before I started. It was not running great, but it ran (with a different tank). I have good spark, and the carb bowls are full of gas. Anyone have any ideas or suggestions?

1986 GS550ESG

I also tried to upload the wiring diagram in case anyone else needs it, but the .pdf is too big. If someone knows how to shrink or save as a different file let me know.
 
Not certain, but sounds like you figured out that black/white is a ground wire - should be about zero ohms to ground/frame/negitive.
 
Yes a dead short should read zero ohms, but because of the resistance in the leads / meter I am using is why I read .2 to .4 ohms. If I tap the two leads on my meter together I read the same thing.
 
Finally!!

Finally!!

I got my bike going!! It seemed like it wanted to start but it was starved for fuel so I pulled the fuel line off and sure enough there was a blockage. Must have come from the petcock because I rinsed the tank good before I put the bike back together, but I neglected to clean the petcock. I replaced the fuel line with clear so I can see if there is any fuel flowing, drained the bowls, put fresh gas in, drained the bowls again, and fully operational battle stations!!\\:D/ I will post some pics as soon as I can.
Thanks for all the help.
 
You must log in or register to reply here.
Back
Top