Wiring harness - Triumph Forum: Triumph Rat Motorcycle Forums
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post #1 of 7 (permalink) Old 01-09-2006, 01:15 PM Thread Starter
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Check out the following post on the "General/Biker Hangout" forum.

"Now I'm sure I own a Triumph!"

Since the early S3 and Sprint/Trident have so much in common, makes sense to check your wiring harness.

Thanks to rwven

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post #2 of 7 (permalink) Old 01-10-2006, 08:25 AM
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I'll paste the post here. I had posted this under another topic far down this thread, but I don't know if many saw it...

My 95 S3 started acting strange at times, engine cutting out, main fuse blowing, horn blowing (faintly, not full toot) on it's own etc. Then, the other day smoke started pouring out of the wiring harness right where it passes the steering head on it's way to the headlight. Seems that Triumph runs a heavy guage wire (1 positive and 1 negative) to this point where it is split into several lighter guage wires all held together with a bare brass crimp connector insulated with a little bit of some kind of fabric tape (similar to friction tape, only different) The flexing of the harness in this area caused the brass crimps sharp edges to cut through this inadequate insulation and eventually cut into adjacent wires. I pulled the harness apart, peeled apart the now melted mass of wires, taped everything up properly with liberal amounts of electrical tape and problems are now solved. I was shaking my head and chuckling the entire time I was repairing this (in a mates driveway with he and two others waiting to go for a toot) thinking how typical this was for a Brit bike.
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post #3 of 7 (permalink) Old 01-10-2006, 01:04 PM
Main Motorcycle: 95 Thunderbird; 96 Sprint
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It is a weak point as I found out, and it is recommended that more free play is given to this 'flexible' area also.

My experience is in this linked post - the last entry is the important one, rather than wading through all the entries......Old Post

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post #4 of 7 (permalink) Old 01-11-2006, 05:27 AM
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On 2006-01-10 07:25, rwven wrote:
thinking how typical this was for a Brit bike.
Excuse me in advance for standing up for them and I can not deny that it's still the same brand but I don't think this is what Hinckley stands for today, so for me it is NOT typical. This sounds like you would almost expect your Triumph to develop an oilleak as well. I'm sure some models of other makes have such flaws too.

BTW, do you know of any other modern British motorcycles besides Triumph ?

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post #5 of 7 (permalink) Old 01-11-2006, 05:36 AM
Main Motorcycle: 1996 TRiumph Sprint
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I never had this problem with my Sprint. I suppose that the reason has to do with the fact that the lights and instruments remain stationary within the fairing when the steering head is turned from side to side, unlike the naked Trident where everything moves.
I did have almost the same experience with my old Meriden Bonnie, except that the wire from the ignition switch in the "binnacle" (the name they gave to the little pod between the instruments--definitely a bike built by a seafaring people) to the coils would break just where it had to flex each time the steering head moved.
After the second harness replacement, I figured that the answer was simply to run a new wire to carry the current between these two points and tape it alongside the main harness.
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post #6 of 7 (permalink) Old 01-11-2006, 07:13 AM
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I love my Triumph! I was just chuckling at the irony of this happening on a British motorcycle. Strangely enough, the Honda PC800 that is parked next to the Triumph has developed an oil leak...

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post #7 of 7 (permalink) Old 01-11-2006, 09:50 AM
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That'll teach you !


Anyway, I'll make sure to check my Sprint this evening to see if it risks developing this problem, so thanks for pointing it out.

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