Author Topic: Neutral light copper piece worn out  (Read 463 times)

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Offline OldGreyBeast

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Neutral light copper piece worn out
« on: January 25, 2022, 08:12:34 PM »
Did a little reading on here and found where to clean up to get my neutral light working again... needless to say this one is a little bit worn out...  I thought about trying to solder a flat piece of copper to the back and then try to carefully build up some solder to make a new "bump" for the plastic cam to ride against, but wasn't really sure how long that would last.  Have any of you guys run into this?  Have any suggestions?  I pulled the one off the spare motor I have laying around for the time being, but I want to get that engine running for my other CB550 eventually so will need a fix.  I'm the type of guy that likes to have every little thing working as it should be so something like this will drive me nuts haha.

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Offline Kevnz

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Re: Neutral light copper piece worn out
« Reply #1 on: January 25, 2022, 09:06:53 PM »
I have repaired one doing exactly as you have suggested, The solder is quite " slippery" for want of a better word so doesn't wear as quickly as you might expect. Or you could shape a piece of copper into the correct shape and solder that, which would last even longer. Work until you find a permanent fix, could even be one.
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Offline OldGreyBeast

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Re: Neutral light copper piece worn out
« Reply #2 on: January 25, 2022, 09:12:07 PM »
I have repaired one doing exactly as you have suggested, The solder is quite " slippery" for want of a better word so doesn't wear as quickly as you might expect. Or you could shape a piece of copper into the correct shape and solder that, which would last even longer. Work until you find a permanent fix, could even be one.

Good to know!  I was considering maybe trying to source some copper sheet of the right thickness, I don't think it would be hard at all to make that dimple, but the solder pad technique will be a lot faster, and now that I know it does work I'll go for that :)
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Offline bryanj

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Re: Neutral light copper piece worn out
« Reply #3 on: January 25, 2022, 10:05:44 PM »
Go to the UK site(sohc.co.uk) and look up Trigger, he had a whole load of those copper contacts acid etched. Probably cost more for postage than part.
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Offline OldGreyBeast

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Re: Neutral light copper piece worn out
« Reply #4 on: January 26, 2022, 05:05:15 PM »
Go to the UK site(sohc.co.uk) and look up Trigger, he had a whole load of those copper contacts acid etched. Probably cost more for postage than part.
Nurse Julie is his partner and is on this site if you feel like pm her

Well that's cool, I'll certainly reach out to Trigger over there.  Thanks!
1974 CB550, 1975 CB550, 1976 CB550, 1986.5 Nissan D21, 1987 Mercedes 190D Turbo, 2010 Mercedes E350, 2016 Suzuki GSX-S1000

Online HondaMan

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Re: Neutral light copper piece worn out
« Reply #5 on: January 26, 2022, 05:24:34 PM »
If you can silver solder with a torch, it will last even longer!
Normal 60/40 (or modern 63/37) solder is easy to shape with a small file if you use that, too. I've seen quite a few of them like that one that still work(!).
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