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Water Cooled Twins Technical Talk Technical Talk for water cooled Triumph Twins.

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post #1 of 52 (permalink) Old 03-30-2019, 10:28 AM Thread Starter
Minitwins
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Check your wiring!

Hi all,
In case this hasn't been mentioned already, if you have a T100/T120 (Maybe others don't know) then please check the wiring loom around your head stock. I just noticed that 2 of 3 wires coming from my reg/rec have sheared off because the loom is too constricted and stretches at full lock.
Triumph are putting in a warranty claim. This is separate to the recent clutch cable recall.
I got lucky and noticed it before it sheared completely.
Cheers
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post #2 of 52 (permalink) Old 03-30-2019, 10:56 AM
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Quote:
Originally Posted by TommyM615 View Post
Hi all,
In case this hasn't been mentioned already, if you have a T100/T120 (Maybe others don't know) then please check the wiring loom around your head stock. I just noticed that 2 of 3 wires coming from my reg/rec have sheared off because the loom is too constricted and stretches at full lock.
Triumph are putting in a warranty claim. This is separate to the recent clutch cable recall.
I got lucky and noticed it before it sheared completely.
Cheers
My dealer just told me I was due for a headstock recall on a 2017 T120. It is the “headstock tidy”. I also put a JBQ 7/8” riser on. I don’t see abrasion but it tightened the clutch cable. I wonder if this caused the infamous no-hands wobble?
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post #3 of 52 (permalink) Old 03-30-2019, 09:08 PM
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Greetings Tommy, ... If you can, please post a photo of this issue.

Thanks, GEB
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post #4 of 52 (permalink) Old 03-31-2019, 07:10 AM Thread Starter
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No probs, tricky to see. I don't think bar risers would effect this as the cables aren't routed passed them in this case. Oh well.. Bikes off the road for a few weeks.
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post #5 of 52 (permalink) Old 04-01-2019, 09:03 AM
geb
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I looked at my 2016 T120, and while moving the bars, I can see enough flexing in the wires of the left side connector that could generate eventual breakage. Especially if the wire installation was short on slack. The right side connector wires did not appear to flex at all.
The problem here (if you're out of warranty) is once those wires break, how much of the wire harness do you have to buy, and how big a headache is it to replace. Or,.... I wonder if new wire can be spliced into the connector ???
Can't help but think that the voltage regulator would have been much better off in a stationery mount somewhere on the frame, and not on the front forks.
Thanks for posting.
GEB
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post #6 of 52 (permalink) Old 04-02-2019, 06:25 AM
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Coincidentally I just relocated my rectifier to behind the radiator which is a much more natural position for it. There wasn't any wear on the wiring. When it was in its original position, it added to the rats nest of wiring all near the head stock and I could easily see issues if the wiring became jumbled. Moving them cleaned out a lot of the mess and seemed to help the rest of the wiring with space.

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post #7 of 52 (permalink) Old 04-02-2019, 09:06 PM
geb
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Nate; Sounds like a good idea, and you might be on to something,... but are you not concerned that it might get too warm from the radiator?
I assume that finned outer shell is for a heat dissipation function.
I think it might be an interesting experiment to measure their heat output with a hand held IR thermometer, before and after.
Could you provide a photo and brief tutorial for your procedure?

Thanks,
GEB
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post #8 of 52 (permalink) Old 04-02-2019, 09:30 PM
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I plan to relocate the voltage regulator on my Street Cup as well. Behind the radiator seems like a good spot or I have a Tamarit "chin" fairing as well and so might try to hide it lower. Those are some pretty heavy wires that don't need to be flexing every time the forks move and taking the whole harness with them. And I usually have a lot of bar movement to get to the street.

Triumph's design was obviously to keep everything neat and tidy, in one thick bundle of wires, and using the headlight bucket for a central distribution point. Having recently wired my old 650 from scratch, I pretty much went with that philosophy except that we're talking minimal electric requirements and wires. Even so I was careful to keep what I have from binding.

For the cup I have been considering a frame mount "cafe racer" style fairing, similar to the Thruxton. Something I wanted to do anyway and having a fixed headlight will no doubt drastically reduce the harness flex. Looking at the .pdf for the Thruxton fairing install was a bit intimidating. However, now that we can pretty much conclude that Triumph is unlikely to address the problem in any meaningful way (other than to replace documented bad harnesses for the warranty period) I'm a little more encouraged to unpack that headlight and see what can be done.
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post #9 of 52 (permalink) Old 04-03-2019, 12:08 AM
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Holy cow. That looks terrible. I hope you are still under warranty. I would definitely take that in. It is way too early for any wires to be looking that way. Your picture looks quite a bit different from my T120, as there a no loose wires like that on my bike. They are all wrapped in light tubing right up until the plugs.

I just added cruise control to my T120 yesterday, so I used the opportunity to check out all of my wiring around the head stock, including up in the headlamp casing. Everything seems in order and all of the wiring has a lot of play in it. I'm getting the recall done this Saturday, but I don't seem to have an issue with my clutch cable causing damage either. I'll get it done anyway.
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post #10 of 52 (permalink) Old 04-03-2019, 12:11 AM
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Quote:
Originally Posted by nateonator View Post
Coincidentally I just relocated my rectifier to behind the radiator which is a much more natural position for it. There wasn't any wear on the wiring. When it was in its original position, it added to the rats nest of wiring all near the head stock and I could easily see issues if the wiring became jumbled. Moving them cleaned out a lot of the mess and seemed to help the rest of the wiring with space.

Sent from my Pixel 2 XL using Tapatalk
You should write a post about that with pictures. That sounds like a good idea. I remember a review where Triumph gets mocked for making the rectifier a highlighted feature.
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