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Old 06-07-2011, 05:06 PM   #1
Luna Negra OP
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'01 KTM LC4 clutch slip

Just purchased a "new to me" '01 KTM LC4 640. 2600 original miles and the clutch slips when getting on the gas. I've searched here with not much luck other than technical details about swapping the clutch and/or plates. With that low I mileage, I don't think a worn clutch is the issue but ThumperTalk seems to indicate it may be something with the oil. Clutch slips, then finally catches in hight RPMSs. Any advice?
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Old 06-07-2011, 07:11 PM   #2
wrk2surf
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Read this noob..

http://www.advrider.com/forums/showthread.php?t=86958

more than likely need the cable adjusted..
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Old 06-07-2011, 09:45 PM   #3
RockyRue
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Maybe change the oil. Someone may have put in the wrong type.
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Old 06-08-2011, 02:04 PM   #4
Luna Negra OP
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Quote:
Originally Posted by wrk2surf View Post
Read this noob..

http://www.advrider.com/forums/showthread.php?t=86958

more than likely need the cable adjusted..
This was the first place I checked but didn't see the issue addressed. Adjusted the cables on both ends already. I'll change the oil and see where it is.
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Old 06-08-2011, 08:43 PM   #5
wrk2surf
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if not you maybe need to adjust the screw inside the clutch cover.. you could lay it on its side .. maybe check your discs too..
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Old 06-08-2011, 09:41 PM   #6
bmwktmbill
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Quote:
Originally Posted by wrk2surf View Post
if not you maybe need to adjust the screw inside the clutch cover.. you could lay it on its side .. maybe check your discs too..
Works,
I wasn't aware of this adjustment, maybe my brain is fading?
Been in my clutch several times.
With 45K miles I worry about mine.
Lots of travel loaded miles.
So far no slipping.
bill
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Old 06-08-2011, 10:01 PM   #7
wrk2surf
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have to take out the tiny tiny cotter pin and the tube screws in and out
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Old 05-14-2015, 08:36 PM   #8
NevBlu
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Clutch adjustment rod

Clutch adjustment rod

Here is the clutch adjustment rod inside the clutch cover. It will need to be adjusted sometimes. It takes some remove, adjust, then reinstalling of the clutch cover, so beware this is not a quick adjustment, but necessary many times.
Good luck.
:)
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Old 05-14-2015, 11:40 PM   #9
hajoktejnSI
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Check the cable first, it could be pinched somewhere causing the clutch not to engage properly. I disregarded this issue and had to change the plates and discs prematurely. If the cable is ok than remove the clutch cover, measure the plates and inspect for wear, measure the springs 2.
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Old 05-16-2015, 06:16 AM   #10
NevBlu
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Clutch cable, 2001 KTM LC4 640 E

Quote:
Originally Posted by hajoktejnSI View Post
Check the cable first, it could be pinched somewhere causing the clutch not to engage properly. I disregarded this issue and had to change the plates and discs prematurely. If the cable is ok than remove the clutch cover, measure the plates and inspect for wear, measure the springs 2.
General tips:
  1. Try cable adjustment,
  2. Replace cable, and/or then,
  3. Adjust interior rod to clutch plates.

For my 0.0 miles LC4, I will be installing a new clutch cable today, [584 02 09 0000] 1115 mm on a 2001 KTM LC4 640 E. The cable has been on the parts wall for several years and with considerable cable play it should have been replaced long ago. Why procrastinate? New parts can make the riding experience better along with proper adjustments and maintenance.
:)
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