K1100 Clutch - Help! - BMW Luxury Touring Community
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post #1 of 4 Old Aug 6th, 2015, 7:25 am Thread Starter
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Unhappy K1100 Clutch - Help!

Hello,
New to the forum and looking for some advice and inspiration. I had noticed that my K1100LT clutch began to slip some time ago, this was initially only obvious when attempting ‘hard’ acceleration, also on the motorway if I was cruising and wound the throttle fully open the clutch would slip and after a few seconds the engine would catch up and the bike would accelerate (sling-shot effect). I had adjusted the cable (relatively new) on several occasions and it was at full adjustment. Hindsight is fantastic and I know that I shouldn’t have ignored the problem, but I needed the bike for my daily commute and the slipping was not too much of an inconvenience. This morning, 60MPH going up a long incline I realised I could not accelerate and when I tried I could hear the engine increasing revs with no increase in speed, before I realised what was happening I got the lovely smell of a burning clutch (burnt out clutch plates I hear you say, read on!). As I made my way to the hard shoulder, I went to change down and the clutch lever was ‘limp’. On inspection I could see that the lever was correctly operating the cable, which was correctly working the clutch arm at the back of the engine (with limited friction). After some mind searching I decided to see if I could get the bike home, which I did by putting in 1st gear, hitting the button and off we went. Now here’s the thing, whilst on the motorway (changing gears using engine revs) there was absolutely no sign of slippage and when I gave it full throttle it took off like the proverbial rocket (or at least as fast as a K1100 can!).
With my limited knowledge I have concluded that the clutch plates must be ok (or at least functional) but it is what engages/disengages the clutch which has gone. So what I need to know is has anyone experienced similar symptoms? What was the cause? Was it a major undertaking to repair? If so, can it be done by a relatively competent person, with no experience in this particular field? Anything else that you can add will be gratefully received. Thanks.
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post #2 of 4 Old Aug 6th, 2015, 8:40 pm
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Re: K1100 Clutch - Help!

Yes it is a simple system and there was an older bearing and cup on the end of the release rod that has a better replacement. As the clutch plate (there is only one) wears the release rod moves toward the rear increasing the pressure to the release arm and this must be adjusted out on the cable. I would try that first and adjust the cable so there is play between the rod and the arm. But also inspect the bearing cup at the end of the rod at the arm it may be shot.
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John
2009 K1300GT Red Rocket
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post #3 of 4 Old Aug 7th, 2015, 8:10 am
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Re: K1100 Clutch - Help!

Hi, here is a youtube on your K1100 Clutch Adjustment Procedure.
https://www.youtube.com/watch?t=15&v=gBW4D2jDw2A

Patric Blackman
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post #4 of 4 Old Aug 10th, 2015, 7:04 am Thread Starter
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Re: K1100 Clutch - Help!

Thanks for your input. I fear that we are beyond the clutch adjustment option as there is no more adjustment left on the cable and adjusting the arm has no effect. Currently the lever and arm visibly function as normal, the only resistance is the spring pressure from the arm, the clutch does not work at all. Thinking about your comments I suspect, due to the symptoms at the time, that the issue is with the rod itself or the bearing cup as Jzeiler suggests. Is the inspection/replacement of these items a major job? By the way, I am hesitant to try and remove the exhaust system as the manifold studs seem to be made up of more rust than metal!
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