Having fun with a 1988 GL-1500 wiring harness.


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PedroTQ
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1988 GL-1500

Having fun with a 1988 GL-1500 wiring harness.

Postby PedroTQ » Mon Sep 07, 2015 3:18 am



G'day to Everyone!

I modified my 88 1500 wiring so as i could turn my parking lights and headlights on and off as i wished, only to find that all the instrumentation is powered by the parking lights circuit. Maybe even some of the black boxes too?

So i purchased a secondhand wiring harness from e-Bay, it was cheap as there was a problem with it (easy found), so over the past few days between going for rides, drinking beer and taking grandchildren for joyrides i have stripped all the insulating tape off the harnesses and the crimped on splices and joiners within the harness.

Now that was one !@#$ ()*& $*%&^ Sticky *@&$&%@ of a job. I used cable-ties to keep the shape of the harness then dumped the whole lot into a bucket of mineral turpentine for an overnight soak. The next day i removed it and blew the hell out of it with compressed air, so now she is all clean and non sticky.

I am removing obsolete wiring (intercom, CB radio) and anything else that i do not use, like auto canceling indicators as I prefer to turn them off myself.

I have also spliced the power feed wire for the instrument cluster (brn/blk wire) from the parking light loom (brn/wht wire) and connected it to an ignition on loom (wht/grn wire).

I will have to go through the harness with the circuit diagrame and check what else i have to change.

Next to put "Heat Shrink" tubing on all the in harness splices and joiners.

As you can see the problem with this harness was the Yellow wire to the starter solinoid was chaffed against the frame and got quite hot in the process. easy fix as i purchased several wiring harnesses for the plugs, terminals and coloured wires so I have a spare yellow wire.

Best regards, Peter.
Attachments
1988 GL-1500 wiring harness with all the insulating tape stripped off.
1988 GL-1500 wiring harness with all the insulating tape stripped off.
The Naughty Yellow wire.
The Naughty Yellow wire.


#1 - 1975 GL-1000 - showroom
#2 - 1976 GL-1000 - sidecar
#3 - 1978 GL-1000 - parts
#4 - 1975 GL-1000 - parts, but had the sidecar
#5 - 1978 GL-1000 - project with grandson (secret parts source)
#6 - 1988 GL-1500 - Flagship!
#7 - 1998 GL-1500C - Valkyrie

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NVSB4
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Re: Having fun with a 1988 GL-1500 wiring harness.

Postby NVSB4 » Mon Sep 07, 2015 9:21 am

That's quite a daunting project you have going.
There are so many places where the wiring is currently routed so tightly that I wouldn't know where to start replacing.
Good luck with your project. Keep us updated with the results.
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Uncle Fester
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Re: Having fun with a 1988 GL-1500 wiring harness.

Postby Uncle Fester » Mon Sep 07, 2015 11:51 am

WOW ! Not many have the guts to dive into the spaghetti bowl like that. . . .much respect for you and best of wishes on the job.

I am really glad to hear you are doing this right, with solder joints and shrink wrap, and not just covering the joints in electrical tape or the such,
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WingAdmin
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Re: Having fun with a 1988 GL-1500 wiring harness.

Postby WingAdmin » Tue Sep 08, 2015 9:05 am

While you've got it apart, rip out those ground points (the terminals that connect multiple grounds together at a single point) and replace them with solder and heat-shrink. They are a notorious point of failure.

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Uncle Fester
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Location: Bethany, Ok, right off Route 66 !
Motorcycle: 1996 GL-1500 Cali model 'Wing, blue in color, named Ol'Blue

Re: Having fun with a 1988 GL-1500 wiring harness.

Postby Uncle Fester » Tue Sep 08, 2015 9:15 am

WingAdmin wrote:While you've got it apart, rip out those ground points (the terminals that connect multiple grounds together at a single point) and replace them with solder and heat-shrink. They are a notorious point of failure.



VERY GOOD POINT ! I plan on doing that at the same time I do my stereo upgrade this winter, just to be safe. I have heard too many tales about that junction block. I have even thought about soldering them to a large (yellow) ring connector and bolting that to the frame as one more point of ground for safety, will have to look at it better when I get in there. . .


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