BMW K bikes (Bricks)

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1Back to top Go down   Question before I buy a 1985 K100RT Empty Question before I buy a 1985 K100RT on Tue Mar 06, 2018 3:48 pm

MikeyBoy

MikeyBoy
active member
active member
I'm about to go look at my first BMW bike, a 1985 K100RT. It looks to be in great shape with its original owner, and has 60k miles. The only thing is that he has never lubed the splines, and my research online says that this is very important with K100 bikes. He says he's always had a shop do general maintenance, and no one ever mentioned it to him. I suspect I'll go ahead and buy the bike and then figure on around $700 to get the splines lubed by a pro(?).
Any advice would be appreciated, especially regarding how important it is to do this soon (rather than wait, say, 8000 miles till it needs a new rear tire). I'll test drive first, and I trust the fellow is honest when he says the bike shifts smoothly with no issues. Also I read that somehow the 1985 splines last longer than later years bc they're slightly larger (?). Finally, I reckon some bikes have gone well past 60k without getting this done and have done fine(?)
Thanks all!

    

2Back to top Go down   Question before I buy a 1985 K100RT Empty Re: Question before I buy a 1985 K100RT on Tue Mar 06, 2018 3:52 pm

Point-Seven-five

Point-Seven-five
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Life time member
Wow!!!  $700 to avoid an afternoon doing a spline lube...

Do you work for the government???


__________________________________________________
Present:
1994 K75RT
1991 K100RS
1988 K100RS SE

Past:
1994 BMW K75S
1992 BMW K100RS
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

3Back to top Go down   Question before I buy a 1985 K100RT Empty Re: Question before I buy a 1985 K100RT on Tue Mar 06, 2018 3:56 pm

MikeyBoy

MikeyBoy
active member
active member
@Point-Seven-five wrote:Wow!!!  $700 to avoid an afternoon doing a spline lube...

Do you work for the government???

No but I'll be using my tax refund to pay for it!

    

4Back to top Go down   Question before I buy a 1985 K100RT Empty Re: Question before I buy a 1985 K100RT on Tue Mar 06, 2018 4:35 pm

Snod Blatter

Snod Blatter
Life time member
Life time member
Is $700 a quote for the clutch splines, by any chance? Final drive and shaft splines are easy, clutch splines are difficult..


__________________________________________________
1989 K100RS SE ABS 8v  VIN: 0149214
Others: 1.5 x Honda CBX250RS-E, '94 CB250, '95 TRX850, '16 Z250SL
http://justbikethings.blogspot.co.uk/
    

5Back to top Go down   Question before I buy a 1985 K100RT Empty Re: Question before I buy a 1985 K100RT on Tue Mar 06, 2018 7:00 pm

Point-Seven-five

Point-Seven-five
Life time member
Life time member
I would do the drive shaft splines right away.  You can do them with the tools in the bike's tool kit or about $40 at Harbor Freight.  Can be done in an afternoon. Clutch splines are a bit more involved and would be best saved for later when you become a little more familiar with how things go together.

These bikes will be money pits if you aren't ready or willing to do your own work.  The good news is that most of the jobs that need to be done are fairly easy to do.  In extreme situations they can be done at curbside or in a parking ramp as several owners can attest to.  All it takes is a little preparation and planning.


__________________________________________________
Present:
1994 K75RT
1991 K100RS
1988 K100RS SE

Past:
1994 BMW K75S
1992 BMW K100RS
1982 Honda FT500
1979 Honda XR185
1977 Honda XL125
1974 Honda XL125
1972 OSSA Pioneer 250
1968 Kawasaki 175
    

6Back to top Go down   Question before I buy a 1985 K100RT Empty Re: Question before I buy a 1985 K100RT on Tue Mar 06, 2018 8:58 pm

MikeyBoy

MikeyBoy
active member
active member
@Snod Blatter wrote:Is $700 a quote for the clutch splines, by any chance? Final drive and shaft splines are easy, clutch splines are difficult..
 
That's for all 3. After reading these responses I'll probably try the final drive and shaft splines by myself. With the help of some YouTube videos of course...

    

7Back to top Go down   Question before I buy a 1985 K100RT Empty Re: Question before I buy a 1985 K100RT on Tue Mar 06, 2018 9:01 pm

MikeyBoy

MikeyBoy
active member
active member
@Point-Seven-five wrote:I would do the drive shaft splines right away.  You can do them with the tools in the bike's tool kit or about $40 at Harbor Freight.  Can be done in an afternoon. Clutch splines are a bit more involved and would be best saved for later when you become a little more familiar with how things go together.

These bikes will be money pits if you aren't ready or willing to do your own work.  The good news is that most of the jobs that need to be done are fairly easy to do.  In extreme situations they can be done at curbside or in a parking ramp as several owners can attest to.  All it takes is a little preparation and planning.

Thanks, good advice point-seven-five.

    

8Back to top Go down   Question before I buy a 1985 K100RT Empty Advice? on Tue Mar 06, 2018 9:42 pm

caveman

caveman
Silver member
Silver member
Mikeyboy,

I'm not sure if I am a pro but I could easy make $100 a hour lubing your final drive and clutch, the job is not that hard. But to take the time to go through the bike and get all the stuff clean and in good working order is a different story. My advice is to take the maintenance on yourself so you will understand how it works and how to run and care for one of these very interesting (and reliable) machines if run and maintained properly. You will never be alone as long as this forum is running just ask if something doesn't seem right to you.

Welcome and good luck dig in!

    

9Back to top Go down   Question before I buy a 1985 K100RT Empty Re: Question before I buy a 1985 K100RT on Tue Mar 06, 2018 9:48 pm

92KK 84WW Olaf

avatar
Life time member
Life time member
8 years on K bikes and at this point I can see you could change the clutch at the kerb side if you have a helper.

As said if you do your own stuff or most of your own it becomes easier.

That and build a little stock of spare parts by buying when you find them rather than waiting until you need them. Job lots, new old stock, used parts from mates are all great to have. Nothing like running a check on brake pads and finding you suddenly need new ones and being able to take them off your shelf.


__________________________________________________
1992 K100LT 0193214 Bertha Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 106,950 miles Deceased.
1983 K100RS 0011171 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 36,188  miles
    

10Back to top Go down   Question before I buy a 1985 K100RT Empty Re: Question before I buy a 1985 K100RT on Tue Mar 06, 2018 11:10 pm

klompy the grey brick

klompy the grey brick
VIP
VIP
Shaft spline lube from ride in to ride out probs less than 40 minutes and they are the important ones. Every rear Tyre change I do mine on the K100. Once you have done it once it’s easy. Now to get access to clutch is far more tedious the newer the bike is I.e. access abs etc in later models. It’s arguably the easiest bike to work on have fun ask questions watch YouTube. Good luck KKlompy


__________________________________________________
KKlompy Question before I buy a 1985 K100RT 2854237993
"Grace" 1984 K100RS Silver VIN 0019026 Mitt eine Staintune Zorst.
"Olivia" 1997 K1100LT Dark Grey VIN WB1052600W0237453.









Chassis number0019026
Vehicle code0503
SeriesK589
ModelK 100 RS 83 (0502 ( 0503 )
Body typeK 100 RS 83 (0502
Catalog modelECE
Production date1984 / 07
Engine0513)

Question before I buy a 1985 K100RT Au-log10


    

11Back to top Go down   Question before I buy a 1985 K100RT Empty Re: Question before I buy a 1985 K100RT on Wed Mar 07, 2018 2:15 am

chris846

chris846
Life time member
Life time member
With one of these and this forum, not only can you not go (too far) wrong, you'll really enjoy it
Question before I buy a 1985 K100RT K100_a10
Of course, the 'years' have now passed (not sure what's happening with the top of the airbox either)


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Sometimes I'm not really Suzi Quatro.
    

12Back to top Go down   Question before I buy a 1985 K100RT Empty Re: Question before I buy a 1985 K100RT on Wed Mar 07, 2018 2:27 am

charlie99

charlie99
VIP
VIP
@chris846 wrote:
Of course, the 'years' have now passed (not sure what's happening with the top of the airbox either)
its been cut away to show the velocity stack inside the plenum  .. the plenum is usually much taller and a pain to squeeze into under the frame bits and pieces whilst assembled ...the easiest way  as we all know is to drop the frame over the power delivery unit  assembled before the frame goes on ?


__________________________________________________
cheezy grin whilst riding, kinda bloke ....oh the joy !!!! ...... ( brick aviator )

'86 K100 RT..#0090401 ..."Gerty" ( Gertrude Von Clickandshift ) --------O%OQuestion before I buy a 1985 K100RT Au-log10

'86 k100 rs.. #######..  "Fred " (f(rame) red ) ( Fredrick leichtundschnell ) - -
bits and pieces from many kind friends across the k100 world ...with many thanks ..
    

13Back to top Go down   Question before I buy a 1985 K100RT Empty Re: Question before I buy a 1985 K100RT on Wed Mar 07, 2018 2:35 am

chris846

chris846
Life time member
Life time member
"its been cut away to show the velocity stack inside the plenum"


Well that would make it 'easy to work on' wouldn't it. Damn, I was fooled...
Question before I buy a 1985 K100RT 177381


__________________________________________________
Sometimes I'm not really Suzi Quatro.
    

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