• 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.

Starter Solenoid/Relay wiring ?

  • Thread starter Thread starter Headphase
  • Start date Start date
H

Headphase

Guest
Hiya,

1980 gs750L 16 valve model.

Switching out my starter solenoid , dropped the blooming thing, so now I am into guesswork land as to how the wires go back on.

There is a big thick red wire, which goes to the battery, and a big thick black wire that goes into the starter side of the engine. Does it matter which 'post' on the starter solenoid they connect to, or is either way round equally relevant.

Also, there is a thin black and white wire coming out of the main wiring under the tank and down to the starter solenoid/fusebox area. Is this just an earth wire that I can put onto the fusebox mount screws, or does it go somewhere specific.

Sorry about the idiot questions, but I took it apart last week, and I can't find my digi camera with the 'before' pictures.

No point telling me in electrical terms, or circuitry terms, as my brain will just explode, if someone could just remind me where these 3 connectors go.

I think I have it right, but I don't want to hurt my bike.
 
It doesn't matter which post you use for starter side and battery side, but depending on the shape of the thing, it may make more sense one way.

A picture (not exactly of the starter, but it's there)

http://www.lustygrapes.net/motorcycle/under right side cover.jpg

Non head-explody version:

* wire the battery to one of the big posts (there's usually another wire on the same post that goes to the fuse box for accessories, etc. This is the big red wire under the screwdriver in the picture.)
* wire the starter to the other big post. (black wire with yellow jacket on the opposite side)
* wire from starter switch to small post (mine's hardwired, yellow, and under the screwdriver.)
* wire from chassis to solenoid casing (to ground it - black wire on the opposite corner from the starter switch wire)

Now, to make your head explode:

A depressed starter switch supplies voltage (which it gets from the battery via the fuse box) through the relay coil to the chassis ground. This pulls the coil shut and connects the two main posts, thus supplying full battery power to your starter motor. Let go of the switch and the coil opens, disconnecting your starter motor (of a hopefully running bike).
 
the perfect reply. Thanks, I'm off back to the bike, I'll let you know if there's a fire :)
 
worked a charm.
Bike starts amazingly, and it's cured my hot starting problem, where the starter seemed to really chug, like a flat battery.
Change of R/R , change of starter solenoid, cleaned all connections, cleaned starter motor brushes.

Thanks for your help.
 
You must log in or register to reply here.
Back
Top