GS1100 Crank but No Start

[Deltacharlieecho]

I wired based on the 82 gs1100 diagram so I guess I'm confused at why it runs with the start button held but dies when released.

 

[Steve]

My guess would be that the yellow/green wire is connected to the 'hot' wire in the main harness and only engergizes the coils and ignitor when pressed.

What does it take to activate the starter?

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[Steve]

Another possibility is that the yellow/green wire and the orange/white (no sleeve) wire are reversed. The problem with that idea is that the kill switch will activate the starter (with no way to turn it off), but the coils don't get power until you press the starter button.

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[Deltacharlieecho]

I think I wired them in series somehow instead of in parallel. I attempted to bypass the clutch safety switch so I may need to just run a jumper between those wires and see if that makes a difference. Activating the starter requires the kill to be flipped to the on position and starter button pressed.

 

[Deltacharlieecho]

Just got back from messing around with the wires and I think you are right about the switched around y/g and w/orange it's a little confusing but that would explain why there's only power to the coils when there's power to the starter. Easy fix in the morning I hope.

 

[Deltacharlieecho]

Is it possible that the switch itself was wired up wrong with both the hot connection to the coils and the connection to the starter relay being soldered up after the starter switch?

 

[Steve]

I attempted to bypass the clutch safety switch so I may need to just run a jumper between those wires and see if that makes a difference.

In a stock harness, bypassing the "safety" switch is a simple matter of disconnecting a couple of connectors in the headlight bucket, then re-connecting them a bit differently. Takes about two minutes, including removing and re-installing the headlight.

Is it possible that the switch itself was wired up wrong with both the hot connection to the coils and the connection to the starter relay being soldered up after the starter switch?

Once the snippers and soldering iron come out, ANYTHING is possible. Just follow the wiring diagram carefully.

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[Deltacharlieecho]

In a stock harness, bypassing the "safety" switch is a simple matter of disconnecting a couple of connectors in the headlight bucket, then re-connecting them a bit differently. Takes about two minutes, including removing and re-installing the headlight.



Once the snippers and soldering iron come out, ANYTHING is possible. Just follow the wiring diagram carefully.

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I'm going to take a look here in a little bit but I'm pretty sure it is down to a short of some kind or a bad ground somewhere in the igniter wiring that is getting a completed circuit when the starter button is pressed.

I'm hoping there's no wiring weirdness inside the switch itself because I dont want to buy a soldering iron since I don't have my wiring setup where I'm currently living.

 

[Deltacharlieecho]

Issue has been solved. Turns out the hot power and the starter momentary wires were switched. The bike starts and idles nicely now. No crank time required just starts right up and runs.

Thanks for the help on this one. I am going to have more stuff I need help with but I can get started on more of the functional build stuff now and might even be able to soon! I've been working on this bike since September.

 

[Brendan W]

That's 1:0 to you but bikes have no concept of Full Time

 

[Steve]

The bike starts and idles nicely now. No crank time required just starts right up and runs.

Now you know what we mean when we say that a properly set-up bike only needs a stern look at the starter button to get it running. :encouragement:

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