2 Re: What is this?! Sun Aug 29, 2021 7:18 am
moriarti
Life time member
DEFINITELY. The splines look well worn, i would remove drive shaft and clean /check splines.
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1984 k100 rs red/black VIN 0004449 Now sold to Olaf
3 Re: What is this?! Sun Aug 29, 2021 12:10 pm
Laitch
Life time member
Don't worry, there's more where they came from.Clintinz wrote:It looked like rust or old dried grease but after drowning it in degreaser I came across metal filings. Should I be concerned?
That is an excellent photo. Take another with the camera angled so the end profile of some of the splines' ends can be clearly viewed. If their points are chiseled on one side like a saw tooth when viewed from their ends, mileage on them will be limited but I can't tell how much wear they have.
These are worn but not worn out.
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1995 K75 90,000 miles
5 Re: What is this?! Sun Aug 29, 2021 9:34 pm
Point-Seven-five
Life time member
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Present: 1991 K100RS "Moby Brick Too"
Past:
1994 K75RT "Ilsa, She Wolf of the SS"
1988 K100RS SE "Special Ed"
1994 K75S "Cheetos"
1992 K100RS "Moby Brick" R.I.P.
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
6 Re: What is this?! Sun Aug 29, 2021 10:14 pm
Clintinz
active member
Phew! I’ll grease them up and put it back together. Thanks guys
7 Re: What is this?! Mon Aug 30, 2021 6:43 am
Dai
Life time member
Just stick to a yearly regrease with Castrol Optimol / Straubags / whatever and they should go on for quite a while yet.
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1983 K100 naked upgraded to K100LT spec after spending time as an RS and an RT
1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500
9 Re: What is this?! Mon Aug 30, 2021 10:34 pm
Point-Seven-five
Life time member
Yeah, that drive shaft has maybe 100 miles left in it if you are real gentle on the throttle.
A brand new one is $383 at MaxBMW. If you're not in a hurry, you should be able to find a good one on eBay for $200 or less.
A brand new one is $383 at MaxBMW. If you're not in a hurry, you should be able to find a good one on eBay for $200 or less.
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Present: 1991 K100RS "Moby Brick Too"
Past:
1994 K75RT "Ilsa, She Wolf of the SS"
1988 K100RS SE "Special Ed"
1994 K75S "Cheetos"
1992 K100RS "Moby Brick" R.I.P.
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
10 Re: What is this?! Tue Aug 31, 2021 9:51 pm
gabriel
Platinum member
Hi
Unfortunately your splines are starting to wear out.
How long it lasts you depends on how you ride your bike.
Thrash your bike and they won’t last much longer. If you are gentle with the throttle, you might get many more miles.
It’s up to you.
Make certain your clutch arm, located at the back of your gearbox is greased up.
If not, your clutch cable will snap and replacing it won’t fix the problem unless you also grease the clutch pivot arm.
Good luck.
Unfortunately your splines are starting to wear out.
How long it lasts you depends on how you ride your bike.
Thrash your bike and they won’t last much longer. If you are gentle with the throttle, you might get many more miles.
It’s up to you.
Make certain your clutch arm, located at the back of your gearbox is greased up.
If not, your clutch cable will snap and replacing it won’t fix the problem unless you also grease the clutch pivot arm.
Good luck.
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1984 BMW k100..frame number 6228?
1992 BMW K75s
11 Re: What is this?! Tue Aug 31, 2021 10:48 pm
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1992 K75s
12 Re: What is this?! Thu Sep 02, 2021 2:31 am
Clintinz
active member
Given that buying over seas in NZ $ then paying shipping it going to come close to $1k and i can’t find one locally. I’m thinking of replacing the whole back end from the gear housing, swing arm, drive shaft stand etc from a k1100rt. This would be similar price (Which I can find locally) and I can fit a larger rear wheel. Question is… can my existing alternator, starter motor and rear diff fit on the k1100rt back end?Point-Seven-five wrote:Yeah, that drive shaft has maybe 100 miles left in it if you are real gentle on the throttle.
A brand new one is $383 at MaxBMW. If you're not in a hurry, you should be able to find a good one on eBay for $200 or less.
13 Re: What is this?! Thu Sep 02, 2021 8:00 am
robmack
Life time member
Starter motor and alternator, yes. Rear diff, no. You'll have to get the complete rear end, from the bell housing back.
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Robert
1987 K75 @k75retro.blogspot.ca
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