Hi everyone
Hope this intro finds you all well?

I bought my BMW K100RS 16v 1990, two weeks ago, without MOT.

I am currently trying to get the back brake to work.
Today I found  the master cylinder was faulty and am now looking at my options.

I think my immediate searching and questions may be  Master cylinder, Bleeding or ABS related.  



Best regards
Mark

Hi Mark

Ro - ther - ham...?

Where's that (says the man from Barnsley)

Best thing with any brakes on a new/old bike is strip and clean as far as seems neccessary. What's the exact problem with the brake / what's your skill/experience/facilities level?

Cheers & welcome
chris

Welcome Mark (with a K)

Arlina - that was a lousy joke  


to Mark

chris846 wrote:Hi Mark

Ro - ther - ham...?

Where's that (says the man from Barnsley)

Best thing with any brakes on a new/old bike is strip and clean as far as seems neccessary. What's the exact problem with the brake / what's your skill/experience/facilities level?

Cheers & welcome
chris

Hi Chris
Me and my buddy removed the rear master cylinder yesterday and decided to chance a cheap Ebay cylinder in order to get it through the MOT.
https://www.ebay.co.uk/itm/For-Motorcycle-Pit-Bike-Sportbike-ATV-Rear-Foot-Brake-Master-Cylinder-Reservoir/113231387491?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D56113%26meid%3D99f5db01464c4d45b82721184db4e8a7%26pid%3D100675%26rk%3D3%26rkt%3D15%26sd%3D233142267970%26itm%3D113231387491&_trksid=p2481888.c100675.m4236&_trkparms=pageci%3A5bb215d6-440a-11e9-bc84-74dbd1805afc%7Cparentrq%3A6d2a65e31690ab6af3305967fff22751%7Ciid%3A1

I guess it will take a little bit of work to fit but think we can manage it.
I am a bit concerned about the flashing ABS lights and was wondering how I can turn them off for the MOT?

Thanks for your welcome
Mark

Arlina wrote:Welcome Mark (with a K)

Thank you Arlina

Dai wrote:Arlina - that was a lousy joke  


to Mark

Hi Dai
Thank you for welcome
:  )

RothermarkK100 wrote:

chris846 wrote:Hi Mark

Ro - ther - ham...?

Where's that (says the man from Barnsley)

Best thing with any brakes on a new/old bike is strip and clean as far as seems neccessary. What's the exact problem with the brake / what's your skill/experience/facilities level?

Cheers & welcome
chris

Hi Chris
Me and my buddy removed the rear master cylinder yesterday and decided to chance a cheap Ebay cylinder in order to get it through the MOT.
https://www.ebay.co.uk/itm/For-Motorcycle-Pit-Bike-Sportbike-ATV-Rear-Foot-Brake-Master-Cylinder-Reservoir/113231387491?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D56113%26meid%3D99f5db01464c4d45b82721184db4e8a7%26pid%3D100675%26rk%3D3%26rkt%3D15%26sd%3D233142267970%26itm%3D113231387491&_trksid=p2481888.c100675.m4236&_trkparms=pageci%3A5bb215d6-440a-11e9-bc84-74dbd1805afc%7Cparentrq%3A6d2a65e31690ab6af3305967fff22751%7Ciid%3A1

I guess it will take a little bit of work to fit but think we can manage it.
I am a bit concerned about the flashing ABS lights and was wondering how I can turn them off for the MOT?

Thanks for your welcome
Mark

Good choice.  All three of my Bricks have that master cylinder on the rear brake.

Post #32 is where the description of how I did it starts.  If you have some simple tools including a drill, you can do the whole job in under four hours(I did the last one in 2 1/2 hours start to finish).  Be sure to read the last post on the thread.  It's where I add some comments based on my experience with three replacements.

http://www.motobrick.com/index.php/topic,9364.25.html

As far as the flashing ABS lights, try doing a reset by grounding the middle pin on the blue diagnostic plug and turning on the ignition.  It sometimes helps to unplug the ABS brain for a day or so if you have a stubborn "brain" fault.

I think that pulling the ABS relays can stop the blinking as well.  Not sure if the inspector will allow it.

About  ABS:
http://bit.ly/kbikeabs

Instructions on how to reset and read error codes can be found at the bottom of that page.

Have you tried to ride the bike?  The ABS goes through a self test, the last part being as you ride off. Over about 4mph you should hear the self test compete and the ABS bulb should extinguish. 

Mike