I watched a "Kirk video" intro to the KLT while looking for info to provide to the next owner of my beloved K1200LT.
I haven't watched much of Kirk's videos, but he should be commended for all the effort he has made that help folks with their K1200LT maintenance.
However, in the particular video I watched, he suggested that the KLT clutch is weak and needs to be "babied" or it will fail prematurely. (my words, not his).
So here's my question: Has anyone actually worn out a K1200LT clutch?
I'm not interested in clutch slave leaks and rear main seal leaks that took out a clutch. I know there are plenty of those reports. Do we actually have any reports of someone who wore out a clutch by slipping it too much? Any reports of someone needing to replace the clutch but no lube leaks whatsoever? Cases of clutch wear secondary to pulling an overloaded trailer, bad start off technique, slow speed maneuvering involving clutch slipping?
I always thought of the KLT "automotive" dry clutch as being fairly robust. Looking for objective data.
Thanks in advance.
As commented in older posts by Jzeiler and others, the issue is not so much any specific weakness with the K1200LT dry clutch, it is mainly the fact that these dry clutches will not take a lot of REPEATED slipping abuse - this is often done by inexperienced riders during initial clutch release from a stop (in particular if their background is only with wet clutches).
Too much RPM on initial start will kill a BMW dry clutch pretty quick (both on K1200 and Boxer engines). I have seen pretty nasty pictures of these clutches that had only 20,000 miles.
See this tread: https://www.bmwlt.com/forums/k1200lt...000-miles.html
In addition, the clutch diameter / surface of the k1200LT clutch disks (friction and pressure) are not really larger than a K1100LT, but it must carry / support stress of added horsepower (mainly 2005-2009) AND weight of the K1200LT thru its life.
Wet clutches tend to absorb / dissipate much of that heat / energy much better (using oil as the medium).
I have data for the relatively lighter K1200RS (about 635 lb wet). Based on my experience and also accumulated data thru 15 years on the K1200RS forum. Except for the clutch outer cover that is heavier (k1200LT), and the added horsepower (130 HP on K1200RS) this is the same clutch as the K1200LT:
- based on many clutch jobs done on the K1200RS forum , ON AVERAGE the wear was about 0.11 mm per 10,000 miles. In 98% cases the clutch was removed because of an oil leak into dry clutch area, not because of wear.
- Friction plate: given the 6 mm new thickness and the 4.5 minimum thickness, in theory... with no oil leak, an owner could do roughly 136,000 miles with a clutch friction plate (1.5 mm total material DIVIDED by wear of 0.11 MULTIPLIED by 10,000 miles). Of course, this is based on average data, so your mileage will vary depending how hard you are on your clutch.
If my memory is correct, one owner here who has more that 300,000 miles on his K1200LT (ZEKE) has also replied how many clutch jobs he had to do (not counting pre-emptive jobs because of an oil leak).
Thread is here: https://www.bmwlt.com/forums/k1200lt...ther-100k.html