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GS450 connect battery

  • Thread starter Thread starter rzeoriginal
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rzeoriginal

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Hi, I've just bought a 1980 GS450E barn bike. It didnt come with a battery and there is no clear indication as to which wires to connect to the battery. I've purchased a new battery, but need some help to connect it. Can someone please tell me which wires go onto which terminal of the battery. Will be greatly appreciated.
 
It has been a while since I worked on a 450, but I seem to remember that the battery is under the airbox, making it a bit difficult to reach the terminals. Follow the two large wires. You will find that one of them goes to the starter solenoid, the other one will likely be bolted to the back of the transmission. The wire attached to the solenoid will connect to the positive terminal on the battery, the wire attached to the transmission will connect to the negative terminal. If you see some smaller wires (black, with white stripes), they also go on the negative terminal.

.
 
Steve said:
It has been a while since I worked on a 450, but I seem to remember that the battery is under the airbox, making it a bit difficult to reach the terminals. Follow the two large wires. You will find that one of them goes to the starter solenoid, the other one will likely be bolted to the back of the transmission. The wire attached to the solenoid will connect to the positive terminal on the battery, the wire attached to the transmission will connect to the negative terminal. If you see some smaller wires (black, with white stripes), they also go on the negative terminal.

.
Click to expand...
Hi thanks for the reply, this will set me on the right path. Also found this article to help me.
​http://www.bikeexif.com/motorcycle-wiring
 
That article is interesting. Please use it for inspiration only, not as an actual guide on how to wire your GS.

There are SO many things different between his basic "chopper-esqe" wiring and what is on your bike.

.
 
Realize that there are several things to upgrading the wiring on your bike that are GS specific that are not covered in that write up. (see GS Charging Health in my signature)

In addition, I would also recommend a Series R/R rather than that Ricks unit for improved charging. The Ricks is a Shunt R/R which has been the bane of 95% of the motorcycle world for decades. Leave the past behind. (see GS Stator in my signature)

You might also consider a SSPB rather than the Motogadget m-Unit. The SSPB is quite a bit cheaper although it doesn't have all of the bells and whistles of the m_Unit. The SSPB is optimized for improved power distribution which includes a Single Point Ground Harness. You could make your own for the m-Unit but then again you can also pay more money than the SSPB. The SSPB links are in my signature.
 
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Hi posplayr awesome thank you for your comments. Really appreciate it.
 
rzeoriginal said:
Hi, I've just bought a 1980 GS450E barn bike. It didnt come with a battery and there is no clear indication as to which wires to connect to the battery. I've purchased a new battery, but need some help to connect it. Can someone please tell me which wires go onto which terminal of the battery. Will be greatly appreciated.
Click to expand...

Are there some thicker wires near the battery well? You should have a thick wire from the starter solenoid which goes to the +ve battery terminal and a thick wire which is bolted to the engine / frame that goes to the -ve terminal.
 
Hi hillsy. yes thanks I've identified those. The wire from the solenoid also has a wire attached which comes from the rectifier.

The next issue is replacing the ignition switch, which is an universal switch which I have no key for. Bought a replacement universal switch, so just need to match the wires up. I've activated and the charged the battery, so I'm just about ready to see if there is any life in the electric system.
 
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