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hydraulic brake switch not working

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27 Aug 2006 05:56 #72756 by wiredgeorge
hydraulic brake switch not working was created by wiredgeorge
Have a bike in my shop that needed some work. Part of it was wiring. The bike's front hydraulic switch has a brown wire (switched 12VDC) and blue (wire has continuity back to tail light - brake light). The brake light doesn't come on when the lever is actuated. The switch must be bad since the bulb is good, there is continuity on the blue wire and there is switched 12VDC at the switch. Has anyone had to replace one of these hydraulic brake switches? Can they be fixed?

wiredgeorge Motorcycle Carburetors
Mico TX
www.wgcarbs.com
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27 Aug 2006 06:18 #72760 by steell
Replied by steell on topic hydraulic brake switch not working
Fairly common problem.
Sometimes spraying brakekleen into the switch will flush the crud out and allow it to work again.

KD9JUR

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27 Aug 2006 10:31 #72790 by wiredgeorge
Replied by wiredgeorge on topic hydraulic brake switch not working
I suspect what is being said is that you have to pull the brake hoses off to do this... argh

wiredgeorge Motorcycle Carburetors
Mico TX
www.wgcarbs.com
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27 Aug 2006 10:44 #72794 by wireman
Replied by wireman on topic hydraulic brake switch not working
you can just unscrew the switch,but you will still have to bleed brakes.but atleast you wont have to replace any banjo washers. ;)

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27 Aug 2006 19:10 #72887 by wiredgeorge
Replied by wiredgeorge on topic hydraulic brake switch not working
Never took one of those switches out. I guess the hex head with the two prongs should have been a hint. I hate brakes!

wiredgeorge Motorcycle Carburetors
Mico TX
www.wgcarbs.com
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  • Biquetoast
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28 Aug 2006 05:45 #72936 by Biquetoast
Replied by Biquetoast on topic hydraulic brake switch not working
wiredgeorge wrote:

...The brake light doesn't come on when the lever is actuated...

George, on my bikes, I can feel a little "give" right at the point that the fluid pressure engages the switch when I slowly squeeze the lever. Do you know what I mean? Do you feel that on your bike at all? That would help determine if it's actuating and whether or not it's siezed....

(1.) '75/'76 KZ400D - Commuter
(2.) '78 KZ750B3 Twin - Commuter
(3.) '78 KZ750B3 Twin - Commuter
(4.) '75 KZ400D - Sold
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28 Aug 2006 05:48 #72937 by wiredgeorge
Replied by wiredgeorge on topic hydraulic brake switch not working
I didn't notice a difference in feel when I pulled the lever but wasn't much thinking about a difference. The problem pretty much has to be in the mechanical part of the switch so I will either get another or see if I can free that one.

wiredgeorge Motorcycle Carburetors
Mico TX
www.wgcarbs.com
Too many bikes to list!

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