K11 Owners Group

BobZ(IL) · Posted: Sat May 03, 2008 8:52 pm Post subject: My Turn for Brake Problems

Front brake has not been releasing properly. It's not freezing up but just not releasing when I do. Master cylinder was cleaned up last fall because of a leak.

Decided to replace brake fluid front and back. Back much dirtier than front, worn out back pads and lots of crud on disc and pads. Cleaned everything up, replaced rear pads, took a test ride.

Front brakes still not releasing, rear a little better, but now have flashing ABS lights. Checking codes revealed 2 flashes, rear modulator.

Is there anything I can check re the rear modulator? I kind of hate to reset things without knowing about the problem.

Curiously, with bike on the center stand you can spin the front wheel, apply the front brake and it seems to release immediately.
_________________
'93 K1100LT
'78 R100S
'05 R1200GS
BMWMOA, CRBMWOA, ABC, K11OG #997

Live well, do good work, enjoy the ride.

bmwmick · Posted: Sun May 04, 2008 11:46 am Post subject:

Bob,
Did you follow the link to IBMWR?
http://www.ibmwr.org/ktech.shtml
Lots of ABS diag data there for ABS-I faults.

Mick
_________________
Mick McKinnon
KOG#175
'93 K1100LT, '96 R1100RT, '84 R100RS, 2010 Kawasaki C-14
Tucson, AZ

BobZ(IL) · Posted: Sun May 04, 2008 8:12 pm Post subject:

Thanks for the link Mick, there's a lot to study at that site. Hopefully solution lies not far off.
_________________
'93 K1100LT
'78 R100S
'05 R1200GS
BMWMOA, CRBMWOA, ABC, K11OG #997

Live well, do good work, enjoy the ride.

bmwmick · Posted: Sun May 04, 2008 9:00 pm Post subject:

If you do have a code 2, check the wiring to that modulator really closely.

Mick
_________________
Mick McKinnon
KOG#175
'93 K1100LT, '96 R1100RT, '84 R100RS, 2010 Kawasaki C-14
Tucson, AZ

superchicken · Posted: Fri May 09, 2008 7:11 am Post subject: front master cylinder

I purchased the kit to rebuild the rear brake. The front master cylinder screws were bad. Kind of figured the brake fluid hasn't been touched for maybe 4 years? I purchased this k1100RS last July.

Only 1 screw came out the normal way. Attached an EASYOUT to the drill and eased one screw out. The other two I had to drill.
Cleaned up the master cylinder fluid from the brass and aluminum chips. Then bled the front calipers.

Replaced the 2 screws with some I had here... However had to tap or try to clean the threads.
Now to watch for a used master cylinder.

Brake fluid isn't seeping. Not pretty, however it will work until I find something on beemer boneyard or on some list.

take care!
_________________
Tim Lindstrom, ab0ts
1995 K 1100 RS
Columbia Heights, MN

BobZ(IL) · Posted: Fri May 09, 2008 3:12 pm Post subject:

Does anyone know where the fluid return hole is located in the front master cylinder? I have it apart, cleaned everything up, nothing looks worn, cylinder clean and smooth, piston rubbers OK. I'm trying to get front brakes to release immediately when I release the lever. Recommendations included replacing fluid and cleaning m/c, as well as return hole. Thanks.
_________________
'93 K1100LT
'78 R100S
'05 R1200GS
BMWMOA, CRBMWOA, ABC, K11OG #997

Live well, do good work, enjoy the ride.

bmwmick · Posted: Fri May 09, 2008 5:15 pm Post subject:

Bob,
It is the small hole in the bottom of the reservoir. Make sure you have not adjusted the setscrew in too far on the lever. That will prevent the front brakes from releasing too.

Mick
_________________
Mick McKinnon
KOG#175
'93 K1100LT, '96 R1100RT, '84 R100RS, 2010 Kawasaki C-14
Tucson, AZ

Flying Duck · Posted: Fri May 09, 2008 5:19 pm Post subject:

MY RS had a sticking brake lever when I got it. (It was kind of nice to have a parking brake at stop lights on hills. Very Happy

)

I cured mine by pulling the pivot bolt, lubing the non-trheaded part and then not overtightening it when putting it back in.
_________________
93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE

BobZ(IL) · Posted: Fri May 09, 2008 6:19 pm Post subject:

I'm old enough to remember hii-holders on cars ha-ha, how sad is that. Actually the brake lever isn't sticking and when there's no load on the front end, i.e. on the center stand, the brake seems to release immediately and wheel will turn. One thing I found was the front single brake line kind of dangling without the grommet and connection affixed into the bracket just above the radiator grill.
_________________
'93 K1100LT
'78 R100S
'05 R1200GS
BMWMOA, CRBMWOA, ABC, K11OG #997

Live well, do good work, enjoy the ride.