• 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.

Help With Coils

  • Thread starter Thread starter sanfranciscoave
  • Start date Start date
S

sanfranciscoave

Guest
DSC00060.jpg
Hi guys, I have a 1981 GS650E. This is my firsts motorcycle and my first time ever working on a bike. I'm a little confused at the moment as the where the coils need to be connected. The depiction on the left side of the sheet is what the manual says they should look like but when I place the coils on the bike the (+) and (-) ends of the coils end up in the opposite orientation. so do I still connect the both O/W to the positive ends of the coils or do I connect them to the negative? :confused:
 
The coils are identical. Just hook up the O/W ( supply) wire to the positive side of each coil. The two odd ones are the triggers on the negative/ground/earth side.
The wiring diagrams can be confusing. Some show the supply and trigger wires at opposite ends of the coils. Consider them schematic diagrams.
Is this the diagram you're looking at ?
https://deepyjoe.files.wordpress.com/2010/07/1981gs650ex_wiring_diag.jpg
 
Last edited:
Connect O/W to the positive side regardless of how the coils are oriented.


Mark
 
Ideally, the orange/white wire goes to the + terminal. In reality, I don't know how much difference it really makes.

.
 
yeah that's the diagram I was looking at. The thing is the bike doesn't start right now. I know the carbs are clean and have fuel in the bowls and I also have spark to all 4 spark plugs. I though maybe I had the coils connected at the wrong places but I guess not. What do you guys think I should check next?
 
Timing? Coils hooked up correctly with the right coil driving cylinders 2 and 3 and the left driving 1 and 4?

I'm assuming the starter will crank, but the engine won't run.
 
Last edited:
Charge the battery, be sure that it?s full, then pull the choke on your bike, spray starting fluid into the air cleaner and start it. If the battery is charged and it sparks, and the engine turns over and there isn?t some catastrophe in your engine, then it has to go with the starting fluid, has to make some noise at least. May take several tries though, if the bike hasn?t been run in a long time.
 
When I first got the bike it would run on full choke but that was about 4 months ago. I think I'm going to get some starter fluid and see if that will get the bike to run. Thanks for all your help guys!!
 
Hmm,

be careful with the starting fluid. It may start with it, but you're still missing something.

Clean carbs, adjusted valves?
 
Starting fluid will get it start only for a few seconds. If it is not getting any fuel, it will not stay running. Don't try to keep it running on starting fluid only, damage will occur and then you will have a lot more work to do.
 
I've never used it.
As a diagnostic tool if it starts you can figure the ignition is working in some fashion or other.
As a one off it's hardly likely to make the sky fall but long term it has a reputation for washing bores of lubricant and accelerating bore wear.
You could fall into the trap of using it as a crutch to get a defective motor running and use it everyday.
TVO motors are still in living memory where you started on gas and then switched to paraffin.

If it only ran on full choke I would suspect a dirt in carburettor problem. Have you got the original airbox. Pods generally make the bike run too lean.
 
You must log in or register to reply here.
Back
Top