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Author Topic: Rear brake switch  (Read 1987 times)

Thunderkat6

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Rear brake switch
« on: May 09, 2017, 06:20:33 PM »
Hi, does anyone know if I need to drain the fluid to replace a faulty rear brake switch, the one attached to the (I presume) master cylinder on an MXU 450i 2015, or can I just unscrew it and swap it out.
many thanks.
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CROSSBOLT

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Re: Rear brake switch
« Reply #1 on: May 09, 2017, 10:26:17 PM »
Probably like the scooters: little switch below master cylinder.

Karl
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Karl

Three motorcycles 1960-1977 (restored a 1955 BSA)
Agility 50
Yager 200i
Downtown 300i
Navy tech, Ships Engineer, pilot and aircraft mechanic

de dee

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Re: Rear brake switch
« Reply #2 on: May 10, 2017, 01:05:59 AM »
 the switch you are talking about is it the brake light one,  it should be in your brake leaver look it up in a parts manual,  leaver to cable switch in between,.   
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de dee

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Re: Rear brake switch
« Reply #3 on: May 10, 2017, 01:50:34 AM »
Quote from: de dee on May 10, 2017, 01:05:59 AM
the switch you are talking about is it the brake light one,  it should be in your brake leaver look it up in a parts manual,  leaver to cable switch in between,.
  I looked up the part and could not find it either ,you have no brakes ???? do you have foot brake or hand brakes,.   
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de dee

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Re: Rear brake switch
« Reply #4 on: May 10, 2017, 02:48:18 AM »
Quote from: de dee on May 10, 2017, 01:50:34 AM
  I looked up the part and could not find it either ,you have no brakes ???? do you have foot brake or hand brakes,.
  I DOWN LOADED your service manual, it is very good , section 5  page 3 ,. it is a preasure  switch  so you will need to do a brake fluid change,  as it will get air in there,. 



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de dee

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Re: Rear brake switch
« Reply #5 on: May 10, 2017, 02:53:08 AM »
Quote from: Thunderkat6 on May 09, 2017, 06:20:33 PM
Hi, does anyone know if I need to drain the fluid to replace a faulty rear brake switch, the one attached to the (I presume) master cylinder on an MXU 450i 2015, or can I just unscrew it and swap it out.
many thanks.
if you are under warranty I would let the dealer fix it , 
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Thunderkat6

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Re: Rear brake switch
« Reply #6 on: May 10, 2017, 02:41:17 PM »
Ive got the new switch. the bike has the left handlebar brake lever and foot brake connected so whichever I use puts on front AND rear brakes, the right handlebar lever is front only, I just need to know if I need to drain the brake system to swap out the hydraulic switch on top of the master cylinder or if I can just unscrew it and put the new one in, thanks.
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Thunderkat6

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Re: Rear brake switch
« Reply #7 on: May 10, 2017, 02:41:58 PM »
Quote from: de dee on May 10, 2017, 01:05:59 AM
the switch you are talking about is it the brake light one,  it should be in your brake leaver look it up in a parts manual,  leaver to cable switch in between,.

Yes it is.
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de dee

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Re: Rear brake switch
« Reply #8 on: May 11, 2017, 12:53:28 AM »
Quote from: Thunderkat6 on May 10, 2017, 02:41:58 PM
Yes it is.

it is a preasure switch ,  it will get air in there you will have to do MAJIC   not to get air in it,.is there a drain plug near the switch ,
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