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1Back to top Go down   (Very) Intermittent Chattering Empty (Very) Intermittent Chattering on Wed Oct 31, 2012 5:01 pm

zaubertuba

zaubertuba
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A couple weeks ago, I had what felt like an intermittent slipping in the clutch on the freeway. I readjusted the clutch according to the manual, and interestingly ended up with the lever adjustment screw pretty much all the way in, and the clutch screw at the transmission with plenty of thread left--as if the clutch had hardly worn at all (I think). Lever feel seemed as it should be, and the problem seemed to disappear.

It was fine for a few weeks, and it happened again last night. Seems to appear around 65-70 mph in forth gear. Just a sudden stuttering, then it disappears. The vexing thing is I can't seem to duplicate it rolling on the throttle hard.

So...could it still be the clutch? Electrical? Bad gas, maybe?


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1985 K100RS
    

2Back to top Go down   (Very) Intermittent Chattering Empty Re: (Very) Intermittent Chattering on Fri Nov 02, 2012 8:09 pm

zaubertuba

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Here's a couple pics I snapped of the adjustments on either end:

(Very) Intermittent Chattering Img_2010

(Very) Intermittent Chattering Img_2011


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1985 K100RS
    

3Back to top Go down   (Very) Intermittent Chattering Empty Re: (Very) Intermittent Chattering on Fri Nov 02, 2012 8:53 pm

Toto_jp

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whats the back lash like on the rear wheel? check with bike on main stand from memory 60-80 mm is usual
whens the last time the splines were greased or the uni-joint
is the chattering whilst the bike is rolling or when clutch engaged ?


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K100 RS 1986
    

4Back to top Go down   (Very) Intermittent Chattering Empty Re: (Very) Intermittent Chattering on Sun Nov 04, 2012 3:30 am

zaubertuba

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Backlash is certainly not more than 80mm. I'll be checking the splines over winter break (just got the bike two months ago).

I did have it chatter again today--this time rolling on about 4,500 rpm in 3rd. Just accelerating around town! Happens when the clutch is engaged and when I'm on the throttle.


__________________________________________________
1985 K100RS
    

5Back to top Go down   (Very) Intermittent Chattering Empty Re: (Very) Intermittent Chattering on Sun Nov 04, 2012 5:35 pm

GerryP

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+1 for universal joints need grease.

Had this on a car What a Face


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Safe riding Cool,
Gerry Parnham


K1100LT (1993) in Silk Blue/Cream
http://gerryparnham.com
    

6Back to top Go down   (Very) Intermittent Chattering Empty Re: (Very) Intermittent Chattering on Sun Nov 04, 2012 5:56 pm

Toto_jp

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Agreed sounds like a dry Universal Joint so will get worse if there is no grease in it


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K100 RS 1986
    

7Back to top Go down   (Very) Intermittent Chattering Empty Re: (Very) Intermittent Chattering on Mon Nov 05, 2012 4:43 am

zaubertuba

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@Toto_jp wrote:Agreed sounds like a dry Universal Joint so will get worse if there is no grease in it

OOf! Doesn't sound like something I should wait for....So I guess I might as well go in and do the spline lube a little earlier than December. Can I use the same Honda/Wurth mix or Guard Dog Moly on the U-Joint, as well?


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1985 K100RS
    

8Back to top Go down   (Very) Intermittent Chattering Empty Re: (Very) Intermittent Chattering on Mon Nov 05, 2012 6:17 am

RicK G

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You can't grease the U joint they are sealed but they can be replaced. where you are you would probably be best to get Bruno in Canada to do it.
http://www.brunos.us/ds_1986on_k75_k100.html


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1993 K1100 LT, 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 for now
    

9Back to top Go down   (Very) Intermittent Chattering Empty Re: (Very) Intermittent Chattering on Tue Nov 06, 2012 1:34 pm

zaubertuba

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@Rick G wrote:You can't grease the U joint they are sealed but they can be replaced. where you are you would probably be best to get Bruno in Canada to do it.
http://www.brunos.us/ds_1986on_k75_k100.html

Thanks for the tip! Looks like he does good work FWIR here and around the net.

Assuming it is the U-joint, with shipping it looks like this is going to take the bike offline for 3-4 weeks. So far the problem is still intermittent (like, maybe once every 7-10 days)--do you think I can risk holding off 'til December?

Problem is the bike is really our "second car"--my primary transportation, so it's tough doing major work during the busiest parts of my work year. Sad


__________________________________________________
1985 K100RS
    

10Back to top Go down   (Very) Intermittent Chattering Empty Re: (Very) Intermittent Chattering on Tue Nov 06, 2012 4:50 pm

GerryP

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I guess the problem is that each time it judders you risk damaging something else (like the spline).

I think if it were mine I would treat it as gently as I could and get done what I needed to. I've got away with that any number of times :pirat:


__________________________________________________
Safe riding Cool,
Gerry Parnham


K1100LT (1993) in Silk Blue/Cream
http://gerryparnham.com
    

11Back to top Go down   (Very) Intermittent Chattering Empty Re: (Very) Intermittent Chattering on Tue Nov 06, 2012 4:58 pm

Toto_jp

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I'd pull the shaft just to look first before committing If the uni is suspect order a new one any reputable mechanic can fit it for you save a few dollars . You can keep riding but be mindful if the joint does fail you'll be up for a new shaft as they usually destroy the yolks. HARDIE SPICER here in Oz rebuild and balance drive shafts using non standard parts quoted me cheaper than a rebuilt exchange unit
keep us posted cheers Tony


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K100 RS 1986
    

12Back to top Go down   (Very) Intermittent Chattering Empty Re: (Very) Intermittent Chattering on Tue Nov 06, 2012 7:02 pm

RicK G

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@Toto_jp wrote:I'd pull the shaft just to look first before committing If the uni is suspect order a new one any reputable mechanic can fit it for you save a few dollars . You can keep riding but be mindful if the joint does fail you'll be up for a new shaft as they usually destroy the yolks. HARDIE SPICER here in Oz rebuild and balance drive shafts using non standard parts quoted me cheaper than a rebuilt exchange unit
keep us posted cheers Tony

Wrong you need special jigs to position the uni in centre before crimping the yokes to hold it. There are no circlips like many uni joints have.
I have over the years done quite a bit of work with shafts and uni joints and I would not even entertain the thought of doing it without the correct jig.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1993 K1100 LT, 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 for now
    

13Back to top Go down   (Very) Intermittent Chattering Empty Re: (Very) Intermittent Chattering on Tue Nov 06, 2012 8:26 pm

Toto_jp

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Thanks Rick just looked and yes some are staked and newer ones use snap rings just never looked that deep into it Rolling Eyes


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K100 RS 1986
    

14Back to top Go down   (Very) Intermittent Chattering Empty Re: (Very) Intermittent Chattering on Mon Nov 12, 2012 3:06 am

Themason

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Are you sure the clutch is not oil soaked from a leaky rear main seal? That was my first thought. These U-joints generally outlast the pinion splines which makes me wonder if the pinion splines inside the rear of the drive shaft are the culprit.


__________________________________________________
I live in a parallel universe but have a vacation home in reality :arrow:

1984 K-100RS Alaska Blue w/Parelever and 16V wheels.

1984 K-100RS Metallic Madison stock

1986 R-80G/S w/1000 cc engine

2007 Harley Davidson Street Rod Mirage Orange w/XR1200 wheels, Race Tech, True Track, Works Performance shocks

2007 Harley Davidson Street Rod Vivid Black stock

1993-ish K-100/1100RT/LT hemaphrodite frankenbike thingy to be painted satin black from a rattle can eventually
    

15Back to top Go down   (Very) Intermittent Chattering Empty Re: (Very) Intermittent Chattering on Mon Nov 12, 2012 3:13 pm

zaubertuba

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@Themason wrote:Are you sure the clutch is not oil soaked from a leaky rear main seal? That was my first thought. These U-joints generally outlast the pinion splines which makes me wonder if the pinion splines inside the rear of the drive shaft are the culprit.

The rubber boot on the clutch adjustment *was* a little greasy when I adjusted it. There hasn't been any dripping since I cleaned it--though I suppose I better check the boot again.

Looks like I'm going to have to do some tranny/driveline work anyway. I've got the "floppy-gearshift-lever-grub-screw" thing going on, too. Sad


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1985 K100RS
    

16Back to top Go down   (Very) Intermittent Chattering Empty Re: (Very) Intermittent Chattering on Mon Nov 12, 2012 8:26 pm

RicK G

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Looks like you have a bit of work coming, there just isn't anything worse than a floppy grub screw. Laughing


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1993 K1100 LT, 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 for now
    

17Back to top Go down   (Very) Intermittent Chattering Empty Re: (Very) Intermittent Chattering on Tue Nov 13, 2012 11:51 pm

Themason

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[quote="zaubertuba"][quote="Themason"]Are you sure the clutch is not oil soaked from a leaky rear main seal? That was my first thought. These U-joints generally outlast the pinion splines which makes me wonder if the pinion splines inside the rear of the drive shaft are the culprit.[/quote]

The rubber boot on the clutch adjustment *was* a little greasy when I adjusted it. There hasn't been any dripping since I cleaned it--though I suppose I better check the boot again.

Looks like I'm going to have to do some tranny/driveline work anyway. I've got the "floppy-gearshift-lever-grub-screw" thing going on, too. Sad[/quote]

If the rear main seal is leaking there will be oil dripping from the weep hole in the very bottom of the intermediate housing, just in front of the center stand carrier bracket.


__________________________________________________
I live in a parallel universe but have a vacation home in reality :arrow:

1984 K-100RS Alaska Blue w/Parelever and 16V wheels.

1984 K-100RS Metallic Madison stock

1986 R-80G/S w/1000 cc engine

2007 Harley Davidson Street Rod Mirage Orange w/XR1200 wheels, Race Tech, True Track, Works Performance shocks

2007 Harley Davidson Street Rod Vivid Black stock

1993-ish K-100/1100RT/LT hemaphrodite frankenbike thingy to be painted satin black from a rattle can eventually
    

18Back to top Go down   (Very) Intermittent Chattering Empty Re: (Very) Intermittent Chattering on Tue Nov 13, 2012 11:54 pm

Themason

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[quote="Rick G"]Looks like you have a bit of work coming, there just isn't anything worse than a floppy grub screw. Laughing[/quote]



"Grub screw"??? WTH? This was from a Yank and I don't understand him any better than I understand you Aussies sometimes affraid


__________________________________________________
I live in a parallel universe but have a vacation home in reality :arrow:

1984 K-100RS Alaska Blue w/Parelever and 16V wheels.

1984 K-100RS Metallic Madison stock

1986 R-80G/S w/1000 cc engine

2007 Harley Davidson Street Rod Mirage Orange w/XR1200 wheels, Race Tech, True Track, Works Performance shocks

2007 Harley Davidson Street Rod Vivid Black stock

1993-ish K-100/1100RT/LT hemaphrodite frankenbike thingy to be painted satin black from a rattle can eventually
    

19Back to top Go down   (Very) Intermittent Chattering Empty Re: (Very) Intermittent Chattering on Thu Nov 15, 2012 5:13 am

K75cster

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Thats OK we are very understanding people, we like our grub


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Keith - 1987 K75c with r100rt replica fairing and half of a 1984 K100rt 1992 K1100LT a blue one

The Clever are adept at extricating themselves from situations that the wise would have avoided from the outset - QUOTE from david Hillel in Out of the Earth.
    

20Back to top Go down   (Very) Intermittent Chattering Empty Intermittent chatter on Mon Nov 26, 2012 5:33 am

BillOwens

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Mine seems to have the occasional chatter at low speed going round a sharp corner
Would this be a spline issue?


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1984 BMW K100 RS black,90,000km, 1982 Ducati Pantah 600SL 2,000km since restoration, 1949 Velocette Mac 350, undergoing restoration
http://www.wdmoc.com
    

21Back to top Go down   (Very) Intermittent Chattering Empty Re: (Very) Intermittent Chattering on Mon Nov 26, 2012 6:38 am

Crazy Frog

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I removed the gear box on the k100 because of the output shaft seal leaking.
Over the last 800Km, I experienced this chattering twice.
The clutch plate is soiled with oil and has to be replaced.

CF


__________________________________________________
(Very) Intermittent Chattering Frog15(Very) Intermittent Chattering Logo2101986 k75, 1985 K100rt, 1985 K100rt/EML GT2 sidecar, 1999 K1200lt/Hannigan Astro Sport sidecar.
    

22Back to top Go down   (Very) Intermittent Chattering Empty Re: (Very) Intermittent Chattering on Mon Nov 26, 2012 1:20 pm

Themason

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[quote="K75cster"]Thats OK we are very understanding people, we like our grub[/quote]

Grub? I thought Aussies called it "tucker".


__________________________________________________
I live in a parallel universe but have a vacation home in reality :arrow:

1984 K-100RS Alaska Blue w/Parelever and 16V wheels.

1984 K-100RS Metallic Madison stock

1986 R-80G/S w/1000 cc engine

2007 Harley Davidson Street Rod Mirage Orange w/XR1200 wheels, Race Tech, True Track, Works Performance shocks

2007 Harley Davidson Street Rod Vivid Black stock

1993-ish K-100/1100RT/LT hemaphrodite frankenbike thingy to be painted satin black from a rattle can eventually
    

23Back to top Go down   (Very) Intermittent Chattering Empty Re: (Very) Intermittent Chattering on Mon Nov 26, 2012 8:22 pm

RicK G

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@Themason wrote:
@K75cster wrote:Thats OK we are very understanding people, we like our grub

Grub? I thought Aussies called it "tucker".

I don't care what they call it just so long I can eat it and it tastes OK
The grub screw we refer to is a small taper seat screw thay positions the internal lever to the gear lever shaft inside the gearbox.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1993 K1100 LT, 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 for now
    

24Back to top Go down   (Very) Intermittent Chattering Empty Re: (Very) Intermittent Chattering on Mon Nov 26, 2012 8:40 pm

Crazy Frog

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@Rick G wrote:
@Themason wrote:
@K75cster wrote:Thats OK we are very understanding people, we like our grub

Grub? I thought Aussies called it "tucker".

I don't care what they call it just so long I can eat it and it tastes OK
The grub screw we refer to is a small taper seat screw thay positions the internal lever to the gear lever shaft inside the gearbox.

Pfff... for one minute I thought that you were talking about grubs on a worm gear.

Are we talking about a set screw in North American language?

Let's switch back to vegemite subject (That's was years ago when we started to go off topic) Smile


__________________________________________________
(Very) Intermittent Chattering Frog15(Very) Intermittent Chattering Logo2101986 k75, 1985 K100rt, 1985 K100rt/EML GT2 sidecar, 1999 K1200lt/Hannigan Astro Sport sidecar.
    

25Back to top Go down   (Very) Intermittent Chattering Empty Re: (Very) Intermittent Chattering on Mon Nov 26, 2012 9:00 pm

RicK G

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@Crazy Frog wrote:
@Rick G wrote:
@Themason wrote:

Grub? I thought Aussies called it "tucker".

I don't care what they call it just so long I can eat it and it tastes OK
The grub screw we refer to is a small taper seat screw thay positions the internal lever to the gear lever shaft inside the gearbox.

Pfff... for one minute I thought that you were talking about grubs on a worm gear.

Are we talking about a set screw in North American language?



Let's switch back to vegemite subject (That's was years ago when we started to go off topic) Smile

Ah yes the "American Language" just think if it wasn't for the American revolution they would all be talking English. (Very) Intermittent Chattering 44271


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1993 K1100 LT, 1998 K1100 LT, 1993 K75 RT, 1996 K75RT, 1986 K75 GS, 1979 Z1300 Kawasaki X 2 for now
    

26Back to top Go down   (Very) Intermittent Chattering Empty Re: (Very) Intermittent Chattering on Tue Nov 27, 2012 1:42 pm

zaubertuba

zaubertuba
Silver member
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@Crazy Frog wrote:I removed the gear box on the k100 because of the output shaft seal leaking.
Over the last 800Km, I experienced this chattering twice.
The clutch plate is soiled with oil and has to be replaced.

CF

I'm not sure what would be better...repairing a driveshaft or replacing a clutch plate (the darned things are so pricey). Looks like no matter how you slice it, I'm looking at a Christmas Break "driveline-health-assessment-teardown." :pale:


__________________________________________________
1985 K100RS
    

27Back to top Go down   (Very) Intermittent Chattering Empty Re: (Very) Intermittent Chattering on Tue Nov 27, 2012 4:51 pm

Crazy Frog

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@zaubertuba wrote:
@Crazy Frog wrote:I removed the gear box on the k100 because of the output shaft seal leaking.
Over the last 800Km, I experienced this chattering twice.
The clutch plate is soiled with oil and has to be replaced.

CF

I'm not sure what would be better...repairing a driveshaft or replacing a clutch plate (the darned things are so pricey). Looks like no matter how you slice it, I'm looking at a Christmas Break "driveline-health-assessment-teardown." :pale:

The clutch plates is 'only' $160. Drive shaft are way more expensive.

CF


__________________________________________________
(Very) Intermittent Chattering Frog15(Very) Intermittent Chattering Logo2101986 k75, 1985 K100rt, 1985 K100rt/EML GT2 sidecar, 1999 K1200lt/Hannigan Astro Sport sidecar.
    

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