Author Topic: 1993 K75RT No Clutch Freeplay  (Read 21891 times)

Offline Scott_

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Re: 1993 K75RT No Clutch Freeplay
« Reply #25 on: June 17, 2013, 05:39:57 PM »
... as the disk wears, freeplay decreases... 

Wouldn't freeplay increase with a worn disk since the pushrod would need to be depressed more to reach the clutch spring?

I don't believe so.  As the disk wears, the spring, which is in constant contact with the disk when engaged, moves back toward the rear of the transmission thus requiring less movement of the clutch rod to depress the spring.   At least that's how it looks to me in examining the parts fiche.  Others' thoughts?

Agree.

I also notice in the pictures that the pushrod has a shoulder on it so it will only travel so far rearward upon "release" or "relaxed" position. Even as the friction disk will wear, and the spring pressure plate moves closer to the pushrod and transmission, eventually the spring will start to depress against the rod/shoulder and the friction disk will start slipping.

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1995 K1100LT 0302044
1997 R1100RT ZC62149
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Offline TimTyler

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Re: 1993 K75RT No Clutch Freeplay
« Reply #26 on: June 19, 2013, 06:03:13 PM »
I'm guessing that my best solution is to replace the clutch pack. My pressure plates are a little worn and the friction disk is approaching its service limit. Not sure if a new spring would help.

The Motobins price for all that plus bolts and washers is about $300 US which is considerably less than US dealer prices.

Not too excited about another day-long strip-down though :(

Offline TimTyler

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Re: 1993 K75RT No Clutch Freeplay
« Reply #27 on: June 27, 2013, 09:39:09 PM »
Replaced the clutch pack. Problem Solved.

Plenty of room on clutch cable to adjust properly now. All the new parts measured about the same as the old except the friction disk which was .7mm thicker.

Hope this is the last time I have the transmission off for a looooong time.

Offline ccarlsonnh

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Re: 1993 K75RT No Clutch Freeplay
« Reply #28 on: June 29, 2013, 11:10:45 AM »
Glad you finally got that straightened out!  Was your original clutch disc still within spec?  Mine is well within spec with only 30K miles or so on the bike.  I did 2000 miles on it over the past week and all seems to be OK so just going to keep riding it for now!
1993 K75RT 35K miles blue
New Hampshire

Offline TimTyler

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Re: 1993 K75RT No Clutch Freeplay
« Reply #29 on: June 29, 2013, 11:24:32 AM »
The disc I replaced was scored and very smooth but still 4.9mm thick. New disc was 5.6mm thick.

New disc is a different design and had rivits and no channels like the old.

(the old disc pictured here is not the exact one I had but looks similar)


Offline TimTyler

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Re: 1993 K75RT No Clutch Freeplay
« Reply #30 on: July 03, 2013, 05:41:22 PM »
Posted a pic of the clutch disc I removed from my bike over on the MOA forum and it was immediately recognized as a non-K75 disc.

Doh!

Just goes to show you that you never quite know what you're getting when you buy a used bike. I put 25k miles on this clutch and who knows how many mile the previous owner did on it. Brand name says "Surflex"; no part number.

Offline Grim

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Re: 1993 K75RT No Clutch Freeplay
« Reply #31 on: July 04, 2013, 06:29:47 PM »
Weird. I had my transmission out this week and had no issues. Only thing I can think of is maybe you have the clutch cable in the wrong spot in the slot on the transmission. The cable needs to nest in the rear part (closer to the tire).
I adjusted mine exactly as described in this video. Needed nearly no adjustment when I put it together.

1995 Morea Green K1100LT

Offline Scott_

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Re: 1993 K75RT No Clutch Freeplay
« Reply #32 on: July 04, 2013, 06:57:39 PM »
Tim, maybe that disk you removed was a VW car disk. They are reported to be interchangeable, I've not seen one so who really knows for sure.
  • My Garage
1995 K1100LT 0302044
1997 R1100RT ZC62149
2017 FLHTK Ultra Limited
1997 K1100LT 0302488 (R.I.P.)
"One who does not ask questions is ashamed to learn" Danish proverb

Offline Past-my-Prime

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Re: 1993 K75RT No Clutch Freeplay
« Reply #33 on: January 03, 2020, 10:06:36 PM »
Just thought I'd mention that I LOVE getting into the historical "Motobrick Workshop" threads and finding things that are going to help me with my upcoming clutch pack replacement.

Now where did I leave that 30 mm socket? :threadjacked
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