K11 Owners Group

mnb · Posted: Sat Apr 30, 2011 8:17 pm Post subject: 1997 K1100LT ABSII fault

I pulled the wheels (first time I've done it on this bike), got some new rubber put on and reinstalled the wheels.

I checked wheel spin for both front and rear and activated the brakes (with power off) to ensure they stopped the wheel. Everything looked good.

I had one problem, installing the front wheel. There was much friction on the right side pads. Once I started tightening the axle bolt, it popped into place, though. There's some slight rubbing with both sides, but it rolls, although not as freely as I would prefer.

Anyways, I went on to the rear wheel, installed that no problem.

I have everything reinstalled except the rear mudflap. Power up the bike to start it up and a single ABS light is on. Normally two are on. The left one is lit. When I put the ignition on and kill switch is off, the left abs light flashes. At no time does the right abs light come on. With ignition on and kill switch in on position (ie: won't run position), that abs light is solid.

I have no tools to get fault errors from the moronic unit. Any suggestions? It's too late to run down to the shop and have them look at it.

After four months, I really was hoping to get a ride in this weekend.

The battery was marginal since the shop failed to charge if for four months. I did put it on the charger the other night until it said it was fully charged. Other than the ABS fault, it looks healthy.

A weak battery usually results in two abs lights flashing alternately when you start the bike cold. Warm it up for 2 minutes. Power down, power up and restart the bike and the ABS inits fine. At least that's how weak batteries have always behaved for me on this bike.

This single light thing is new. I'm sure it has something to do with reinstalling the wheels.

I didn't have an ABS problem when I reinstalled the wheels on the F800GS. But then it's blowing clutches every 6000 miles on average...
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M N B
1997 BMW K1100LT ABS Special Edition
2003 Husqvarna TE610e
2007 Harley Davidson Road King
2009 BMW F800GS
2011 Husqvarna TE310
2014 Ducati Multistrada Pikes Peak MNB Edition

Scott_Anderson · Posted: Sat Apr 30, 2011 8:27 pm Post subject:

Occasionally I have to give my display an official thump with my finger to get the abs lamp to light too.

try that and see what happens.
_________________
Ride safe.

1995 K1100LT 0302044
2017 FLHTK Ultra Limited
Garmin StreetPilot 2820
Garmin Zumo 550
Garmin Zumo XT
"One who does not ask questions is ashamed to learn" Danish proverb
1997 K1100LT 0302488(R.I.P.)
1997 R1100RT ZC62149(sold)

mnb · Posted: Sat Apr 30, 2011 8:28 pm Post subject:

I just skimmed the owner's manual, which is better written than the service manual, at least as far as useful info for removing and installing the wheels.

Based on a visual, it looks like the front abs sensor gap is too much (maybe 0.7-0.75). The rear wheel looks really close, but spec is 0.625mm, so it's probably pretty close.

I'm not sure how the sensor could have got that far off...
_________________
M N B
1997 BMW K1100LT ABS Special Edition
2003 Husqvarna TE610e
2007 Harley Davidson Road King
2009 BMW F800GS
2011 Husqvarna TE310
2014 Ducati Multistrada Pikes Peak MNB Edition

Scott_Anderson · Posted: Sat Apr 30, 2011 8:32 pm Post subject:

When I put my axle back in I give the end bolt a good snug fit(not torqued yet) then I lightly thump the fork lowers with my rubber mallet to let them "settle" on the axle shaft. I torque the end axle bolt, then the lower fork axle clamp bolts.

I have had to adjust the abs gap 1 time after changing the tire. don't know why either but non-the less it was off.
_________________
Ride safe.

1995 K1100LT 0302044
2017 FLHTK Ultra Limited
Garmin StreetPilot 2820
Garmin Zumo 550
Garmin Zumo XT
"One who does not ask questions is ashamed to learn" Danish proverb
1997 K1100LT 0302488(R.I.P.)
1997 R1100RT ZC62149(sold)

mnb · Posted: Sat Apr 30, 2011 8:49 pm Post subject:

Scott_Anderson · Posted: Sat Apr 30, 2011 9:22 pm Post subject:

mnb · Posted: Sat Apr 30, 2011 10:55 pm Post subject:

Pulled one of the three shims (2mm, left the 1mm and 3mm in)

Tapped on the console three or four times.

ABS light work fine now. Syncs up fine. Did not test activating ABS while braking.

Taking a dinner run for a test ride and to scrub in the tires. Smile

_________________
M N B
1997 BMW K1100LT ABS Special Edition
2003 Husqvarna TE610e
2007 Harley Davidson Road King
2009 BMW F800GS
2011 Husqvarna TE310
2014 Ducati Multistrada Pikes Peak MNB Edition

Number 6 · Posted: Sun May 01, 2011 6:10 am Post subject:

Good you solved it. Just in case, you can read the ABS errors from the calculator (not the motronic) and reset it with no special equipment, just an analog voltmeter (with digital it is difficult to count pulses) or a 12V LED or a 5V LED with a resistor: http://www.largiader.com/abs/absfault.html
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I am not a number, I am a free man.

94 K1100LT