K1200 LT - 1999 - Clutch/FinalDrive Issue? - K-Bikes.com - Excellence in Motion
 
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post #1 of 8 (permalink) Old Nov 2nd, 2010, 3:42 pm Thread Starter
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K1200 LT - 1999 - Clutch/FinalDrive Issue?

I have a K1200LT 1999 with 24K miles on it and i have a slipping issue, now in All Gears and much more frequent, actually Now I Must get it to 3100 - 3200 RPM's to just start to move. I have been told CLUTCH or FINAL DRIVE. I checked for Oil leak/s between the tranny and Clutch housing and there does not seem to be any. I really Love the bike and can do a final drive no problem, yet if it is the Clutch I currently do not have a garage so I will be forced to do something? Is there a way I can determine exactly what it is? I am Extremely Technical so in consideration of your time I should be able to attack a conclusion with minimal information from you. Most Very Sincerely, Jon Eilers
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post #2 of 8 (permalink) Old Nov 3rd, 2010, 8:27 am
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Clutch. The FD has gears only with nothing to slip.

Ron Cooper

91 K75RT
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post #3 of 8 (permalink) Old Nov 3rd, 2010, 9:12 am Thread Starter
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Ron, Thank You So Much., although my understanding is the "Drive Shaft" itself is a two piece device that is mounted within rubber and this can spin and slip within, which then can create a similar effect. I assume the purpose of the rubber attachment design would be if you ever had a Direct Shear Event (not sure how that would occur, unless you put a solid 2 inch bar horizontal through the wheel, put it in 1st, red lined the engine and popped the clutch ), but if a moment of shear were to occur then you would Totally Destroy All gears and you can imagine whatever else. Have you ever heard of the slippage in the shaft to the extent of my original post? I Thank You Again in Advance. Jon
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post #4 of 8 (permalink) Old Nov 3rd, 2010, 10:03 am
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My K75 driveshaft has a rubber damper also. I'm guessing that once it started failing, it would rip out quickly and transmit no power at all.

A slipping clutch will start slipping in top gear under hard acelleration and progress to slipping in the lower gears.

Ron Cooper

91 K75RT
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post #5 of 8 (permalink) Old Nov 3rd, 2010, 4:07 pm
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Another source

There's much more information about K12LT's on BMWLT.com; talk to the folks there.

Larry Johnson
1991 K75RT
1993 K11LT
1995 K11LT
2003 K12LT
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post #6 of 8 (permalink) Old Nov 3rd, 2010, 11:06 pm
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Main seal leak leading to contaminated clutch pack leading to slipping?

2005 K1200LT-Ocean Blue
1989 K100RS - Blue/White
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post #7 of 8 (permalink) Old Nov 4th, 2010, 1:42 pm
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I used to have an LT. The clutch went out at 23,000 miles. When my LT's clutch went out, there was slippage in the upper gears. Since I do a lot of stop and go and even have to pull up a hill from a stop in our parking garage, decided to sell the LT. The clutch repair is over $1,200 and didn't want to replace it every 20k miles. BTW, the LT's have a dry clutch.

Looked around and bought a GT because of the wet clutch. Now I'm waiting for the bike to get out of the shop with a final drive replacement (bent shaft - how the hell does that happen?) and a master cylinder replacement (goes bad for no reason?). The GT only has 27,000 miles on it and it's repair costs will exceed $2,000.

All I can say is these bikes are expensive, but I love them when they run. Good luck - either way it is going to cost some money to fix.
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post #8 of 8 (permalink) Old Nov 4th, 2010, 7:12 pm
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possible clutch slave cylinder leaking or rear seal. Again a good source of info is on the LT fourm. If you go to the dealer for a fix, your probably looking upward of $1600


Al
2001 LT
2009 LT
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