Author Topic: How to?? Reproduce warning light tubes of CB750 K0 and K1 gauges  (Read 2408 times)

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Offline CB750faces.com (Lecram)

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How to?? Reproduce warning light tubes of CB750 K0 and K1 gauges
« on: February 09, 2011, 10:21:55 am »
The tube in your gauges that guides the light beam to the lenses is often dried and need to be replaced.

There is  kind of 'chicane' in the tube and you cannot use a straight tube for it.

I have produced my own ones, by making a mold and using heat shrink. I made the mold of epoxy resin. I closed one side of the original tube with tape and poured some epoxy resin in it. After a couple of hours, the resin had been cured and I was able to get the mold out of the tube.

I have used a heat shrink tube of 1", put the mold in it and after heating it up, the heat shrink got the shape of the mold. I only had to cut of the rest of the heat shrink and ready!

See pictures:

The original tube and the mold:



The mold in the heat shrink




The heat shrink after heating


The result next to the original tube. It is not exactly the same, but the dimensions are correct. The tube is not visible after closing the gauges.



« Last Edit: February 09, 2011, 12:34:42 pm by Lecram »



Offline Holubs

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Re: How to?? Reproduce warning light tubes of CB750 K0 and K1 gauges
« Reply #1 on: February 09, 2011, 10:23:29 am »
Sweet!!!
Toys:
1976 CB750F1 - my daily rider
1976 CB750F1 restore project - assembly started
1976 CB750F1 - someday project
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Offline The Lone Builder

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Re: How to?? Reproduce warning light tubes of CB750 K0 and K1 gauges
« Reply #2 on: September 08, 2019, 09:16:43 am »
Sounds like what I need.

Any chance that someone has the photos that accompanied the original post?
CB750 K2 - No longer running, now we’re flying!!
CB750 K1 - The less, said the better!
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Offline CB750faces.com (Lecram)

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Re: How to?? Reproduce warning light tubes of CB750 K0 and K1 gauges
« Reply #3 on: September 09, 2019, 12:40:59 am »
Meanwhile, we reproduced these rubber light tubes. These are perfect reproductions of the original parts:

https://www.cb750faces.com/cb750faces.nl/197-honda-cb750-k0-k1-light-tube-rubber.html



 

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