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Old 16-10-12, 02:41 PM   #1
daveyrach
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Default Curvy rear brake light switch?

Bought a new brake light switch today, only to get back and remember I have aftermarket rear sets so a non standard switch, its a screw in type at what looks like the top of the master cylinder. Any idea which it might be?
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Old 16-10-12, 03:10 PM   #2
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Default Re: Brake light switch

That sounds like a pressure switch in the brake line. Replacing it will require some elements of re-bleeding your rear brake system.

Check with a multi-meter that it's definitely shot

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Old 16-10-12, 03:13 PM   #3
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Default Re: Brake light switch

So annoying nothing on the bloody bike is simple and standard, certainly does not look like the standard pull switch with the spring it goes in the side.

Where do I test with my multimeter?
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Old 16-10-12, 03:17 PM   #4
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Default Re: Brake light switch

Follow the wire up from the switch there should be a plug, undo this and get a multi-meter across the terminals on the brake switch side.
Apply the rear brake good and hard
See if the continuity between the 2 terminals is "made" as pressure is applied (resistance should drop to 0, or get a beep if you have a continuity tester)

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Old 16-10-12, 03:31 PM   #5
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Default Re: Brake light switch?

Cheers
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Old 16-10-12, 05:48 PM   #6
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Yep no continuity on the switch at all. Any idea where to get one or which it might be?

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Old 16-10-12, 06:40 PM   #7
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What pitch thread would the banjo pressure switch be? I found 1mm or 1.25mm.

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Old 17-10-12, 12:28 PM   #8
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Sorted got new switch from local parts place.

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