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Bike starts when I ground the battery

  • Thread starter Thread starter Artie
  • Start date Start date
A

Artie

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Having an issue with my 78 gs750. Got the bike as a project and had to put a new wiring harness on bc the old one was hacked up. Wired everything according to the diagram and harness is from same year. As soon as I ground the battery the starter engages, whether the key/kill switch is on or off. Bike will start and starter will continue to turn over. Any ideAs? It's getting so frustrating
 
Stuck starer selinoid is what I would look at first. Smack it a few times with a heavy wrench and see what happens. That or just swap it out. Inspect the starter button too for sticking or shorted wire up there.
 
Will check that out. Wierd thing is no matter what position the key is in it will turn over once I ground the battery.
 
If the solenoid isn't stuck as Chuck suggests, I bet you wired the solenoid and the starter wrong. When you rewired the bike, you got a wire in the wrong place. If there's a complete path from the battery to the starter the starter will be turning, the key switch doesn't enter into it. All the switch does is enable the trigger wire to work from the starter button.
Show us a picture of the wires on the solenoid?
 
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I believe problem is solved . I checked resistance between contacts on soleniod and it appears to be stuck closed . On another note.... The section in diagram which I circled, where the remote wire to the start button crosses over the battery supply to the rectifier, is there a connection there or just a cross over in the diagram??
 
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Yes checked while everything disconnected
 

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Take the selinod off and go to tractor supply, a small engine place, and some have even said Lowes and Home Depot ..but its like an 8 or 10 dollar off the shelf selinoid.
 
There is no connection there. points in the diagram where lines cross and are to be connected usually have a dot at the intersection
 
No connection there. Y/G runs to the starter button and only receives power when button is pressed. If you did connect this to the R wire, the starter solenoid would always be on and the starter would run continuously as you described.
 
Sorry I said R wire but I meant the Y/G as shown in the diagram. I used a red wire for this part of the R/R positive to avoid confusion on my bike.

I should mention that the fuse should be the battery positive side not the R/R positive as shown in the factory setup.
 
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