Turn signal controller

[JimmyR]

Hi GS guys

I recently bought an '82 GS1100G and I'm trying to make it beautiful again. The wiring loom is a mess and while I'm tidying it up - also adding a Dyna ignition, better stator and RR, I want to simplify a few things. My question is, how do I get rid of the signal control box? I don't need all the bells and whistles I just want to turn my indicators on and off when I want. Can I use just the relay to do this?

Part of the reason for the question is that I'm using a new speedo which isn't stock. It would seem through studying the schematic that the turn signal unit needs input from the speedo which I won't be able to provide with my new speedo. So if I can just simplify things altogether I will be happy! Has anyone done this? How do you wire it?

Thanks guys! BTW I tried searching for this but couldn't work out how to word it!

[John Kat]

It's relatively easy to do.
I did it on a GS 1000 EC but it should be the same on your bike.
The indicators have a live wire that's Black on one side and Light green for the other.
The live wires go on eitheir side of the turn signal indicator but also respectively to the Black wire and the Green wire coming out of the left handle switch.
Next you take the Light blue wire coming out of the left handle switch and you connect it to the turn signal relay.
The other wire on the turn signal relay goes to the +12V through a fuse.
You don't need to rewire everything but if you follow these wires you will be able to determine what you keep and what you need to add.
Hope it works for you?

[Nessism]

It's relatively easy to do.
I did it on a GS 1000 EC but it should be the same on your bike.
The indicators have a live wire that's Black on one side and Light green for the other.
The live wires go on eitheir side of the turn signal indicator but also respectively to the Black wire and the Green wire coming out of the left handle switch.
Next you take the Light blue wire coming out of the left handle switch and you connect it to the turn signal relay.
The other wire on the turn signal relay goes to the +12V through a fuse.
You don't need to rewire everything but if you follow these wires you will be able to determine what you keep and what you need to add.
Hope it works for you?

None of this is necessary on an 1100G. The 1978 & 1979 GS1000 used a different TSCU, so the wiring changes are necessary for that model, but not for the 2nd generation system which was adopted by Suzuki for the 1980 model year. To disable the auto-cancel turn signals simply remove the TSCU. Done. Signals will work fine, but won't turn off until you move the hand switch.

[JimmyR]

Wow. Thanks!

[rodman101]

hmmm

i just purchased a 79 gs1000, turn signals not working, and speedo has been changed, also not working, will be goin back to a stock when i9 find one. so this rewire, ccan i make the turn signals work till i get a speedo

[rustybronco]

The speedo on a 79 GS1000E (alloy wheels) will have nothing to do with the turn signals working. The only thing that won't work correctly if it's not hooked up, is the unit will not self cancel.

A 79 GS1000 (base model~wire wheels) doesn't have or use a TSCU. It's system is completely different than the 'E' model.

[rodman101]

ok

well, it has the mag wheels, if that makes a difference, and i believe it does have a tscu, also, someone posted a schematic, hand drawn, about the signals, was that a way to wire them around the tscu so as not to have to purchase another

[rustybronco]

also, someone posted a schematic, hand drawn, about the signals, was that a way to wire them around the tscu so as not to have to purchase another

That would be myself... and it was done as a temporary solution to the problem.

I know wallowgreen has made a working µP TSCU controller, robertbarr is trying to make a replacement out of a pic and then there is my approach to the problem I'm presently working on -> http://thegsresources.com/_forum/sho...4&postcount=18

[rodman101]

sounds complicated, but am handy with electrical, lol, im going to dig into the bike a little further tonight to ensure im getting power to the switch, and go from there

and on another note, could care less if they auto cancel or not

[OldVet66]

I took my switch apart yesterday, cleaned, brightened contacts and greased it with dielectric grease. It started working reliably again (with the self cancel wires disconnected in the headlight). There are three springs in there, a little contact slide, a pressure washer for the lever and two small screws. It's a real simple switch, but the parts are easy to loose, better to take it apart in a clear plastic bag.

[tkent02]

Took my 1100G switch apart today, where does the BB go?

[Nessism]

Spring pushed BB against a detent. Have some photos but don't have access right now. You might want to check the archives as there are some photos there (not mine).

[tkent02]

That makes sense, mine had no detent you had to slide it to the off position without the detent....

Out to look at it again.

[tkent02]

Got it, man there are a lot of springs in there.

Good as new now.

[850 Combat]

If your self cancelling system is working now, I might be interested in buying the controller