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Old 28 May 2019, 01:24   #1
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Kill switch not killing

Hi all. I noticed yesterday that my kill switch lanyard had been pulled accidentally, but I was still merrily sailing on!

If I push in the switch manually it kills the engine. So I believe the actual wiring and contacts work as they should.

I wonder if a bit of lubricant might free it up. Or do they have a spring that might have broken? There is still some "spring" to it, just not enough it seems!

If I Google kill switch there's loads of stuff, but mostly to do with wiring. I'm struggling to find this issue.

If I try to lube it, would wd40, PTFE spray or even a dry graphite spray be best?
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Old 28 May 2019, 01:34   #2
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Don’t mess with trying to sort it, I would fit a new assembly, once they start to go wrong the chance of a repeat is very much higher.
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Old 28 May 2019, 01:35   #3
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It's always advisable to check kill switches work from time to time, your problem is probably a combination of salt build up and or a weak spring inside the actual switch, if it were me I would not bother with trying to remove any salt build up cos its probably inside the switch, I would replace the kill switch with a genuine new unit. A pretty easy job to replace.
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Old 28 May 2019, 01:50   #4
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Thanks. Sounds sensible. I am sure it's something I can do, when I'm home with all my tools. I was only really looking for a quick fix as I'm holiday for a week and have the boat in the water and want to use it.

I've found an outboard repair shop a few miles away in Falmouth who I'll try later, but it's half term week here and I bet they have every man and his dog just wanting a quick job done!
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Old 28 May 2019, 03:14   #5
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Robin Curnow in Penryn by any chance?
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Old 28 May 2019, 03:27   #6
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That's the place. I just googled "outboard repair Falmouth" and it came up. I'll give them a call and see what they say.
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Old 28 May 2019, 15:29   #7
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Hi, where do you have the boat? I live just outside Falmouth and launch/recover my RIB at Mylor, I don't have a spare kill switch but could very easily help you out. Let me know if you require some help.
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Old 28 May 2019, 16:23   #8
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Thanks for the kind offer. I've had a play with the kill switch today. It seems that the housing has been cross threaded and isn't holding tight.
I now have another issue, that it's bogging down under load, so I've taken it to a mechanic. We will see if it's worth saving!
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Old 28 May 2019, 18:19   #9
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I forget Blankton… what's your outboard?
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Old 29 May 2019, 00:29   #10
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It's an evinrude 9.9 2 stroke. Obviously it's quite old, but I thought it would be a good combination of power to weight.

I brought it recently from a bloke who had a workshop at home. He had 20 or so 2 strokes in various states of repair or for sale and seemed very knowledgeable and genuine. (I am now questioning this! lol)

It apparently came fully serviced and ready to go. To be fair when I picked it up he was careful to have me start it and stop it several times. Test forward and reverse etc. But you can't really give it full beans in a bucket!

I'll be getting in touch with him, but he's near me in Birmingham, and that's not much good when I'm in Cornwall.
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