Author Topic: 1989 K75 reanimation  (Read 6623 times)

Offline Laitch

  • Redline 7000
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Re: 1989 K75 reanimation
« Reply #50 on: March 01, 2020, 05:43:10 PM »
yes, i know about low level light.
but there is another functionality of fuel sender - to indicate actual level in tank, for which i would like to have suitable gauge.
As you'll discern from the links supplied in the previous post, this gauge and its splitter wiring isn't available in the States. You'll need to search the used market for BMW gauges. If you want to use gauges from a different maker, you'll need to reconfigure the wiring of your fuel sender—something probably well within your skill set. Read the boxed note in the second section of this post.
  • Along the Ridley in Vermont.
  • 1995 K75 80,000 miles
I wept because I had no radials until I met a man who had no splines.
https://tinyurl.com/RillRider

Offline koshak

  • ^ Motobrick Curious
  • Posts: 95
Re: 1989 K75 reanimation
« Reply #51 on: September 27, 2020, 07:53:45 AM »
Month ago placed order for set of spares for rebuild from my usual supplier in Germany.
All parts collected already, but the connecting rod bolts are still missing. The delivery date was shifted, shifted, until they did not change it to status "Date unknown".  boohoo

The good thing is that i am abroad now, so not working on the bike (which is now stripped to the last bolt, by the way). But if within two weeks it will not be solved, need to search alternative.

From where can i get this connecting rod bolts? New. Need 14 pieces (for K75 and K1).
  • Cyprus
  • 1989 K75, 1989 K1, 2008 K1200GT

Offline Laitch

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Re: 1989 K75 reanimation
« Reply #52 on: September 27, 2020, 08:27:42 AM »
From where can i get this connecting rod bolts?
Motorworks  Scroll down the page to find crankshaft bolts.

It would be helpful for you to tell us who your usual supplier in Germany is.
  • Along the Ridley in Vermont.
  • 1995 K75 80,000 miles
I wept because I had no radials until I met a man who had no splines.
https://tinyurl.com/RillRider

Offline Martin

  • ^ Quintessential Motobricker
  • Posts: 4272
Re: 1989 K75 reanimation
« Reply #53 on: September 27, 2020, 04:56:37 PM »
I have fitted a Quantum kit the one without the pump to a mates Brick. The quality of the kit seemed good. We didn't fit the plastic Flexi Hose due to old guy bias but it's probably OK. I've been running a Chinese clone pump since July 2017  with no problems it even survived a couple of 1700 Km runs on 40C plus days.
Regards Martin.
  • North Lakes Queensland Australia
  • 1992 K75s Hybrid, Lefaux, Vespa V twin.

Offline koshak

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  • Posts: 95
Re: 1989 K75 reanimation
« Reply #54 on: September 28, 2020, 02:41:01 AM »
Motorworks  Scroll down the page to find crankshaft bolts.

It would be helpful for you to tell us who your usual supplier in Germany is.


Motorworks keeps them in stock or also suborder from somewhere?

I use KFM-Motorräder.
  • Cyprus
  • 1989 K75, 1989 K1, 2008 K1200GT

Offline Laitch

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Re: 1989 K75 reanimation
« Reply #55 on: September 28, 2020, 06:39:02 AM »
Motorworks keeps them in stock or also suborder from somewhere?
I operate on the belief that If they have the parts in stock, they'll sell them to me and ship them. Their listings tend to indicate when a part might not be available. If you are sensitive to where they source their parts, how long it will take you to get the parts, or disappointment in general, you probably should email them for reassurance.
  • Along the Ridley in Vermont.
  • 1995 K75 80,000 miles
I wept because I had no radials until I met a man who had no splines.
https://tinyurl.com/RillRider

Offline koshak

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  • Posts: 95
Re: 1989 K75 reanimation
« Reply #56 on: September 28, 2020, 11:13:04 AM »
Noted. I will wait some more time for my supplier, then will see.
  • Cyprus
  • 1989 K75, 1989 K1, 2008 K1200GT

Offline koshak

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Re: 1989 K75 reanimation
« Reply #57 on: September 28, 2020, 11:23:27 AM »
found alternative external parts, test fit


replacement drive shaft


rear brake rebuild




start stripping



  • Cyprus
  • 1989 K75, 1989 K1, 2008 K1200GT

Offline DavidATL

  • ^ Proficient Motobricker
  • Posts: 175
Re: 1989 K75 reanimation
« Reply #58 on: September 28, 2020, 08:01:48 PM »

replacement drive shaft




Excellent comparison of old and new splines. Do you mind if I include this image in a guide I am (slowly) writing? With credit and thanks to "koshak on motobrick.com"
  • Atlanta
  • K75RT '92 w/ 28k miles (former bikes: '82 FT500, 80's GL500 Silverwing, 550 Nighthawk and FINALLY an '88 K75S) https://georgiaroads.wordpress.com including my #GA4corners route

Offline koshak

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  • Posts: 95
Re: 1989 K75 reanimation
« Reply #59 on: September 28, 2020, 09:10:45 PM »
You may use any photo from this blog.
But not kosher (what is that?) - koshak is the correct one.
  • Cyprus
  • 1989 K75, 1989 K1, 2008 K1200GT

Offline DavidATL

  • ^ Proficient Motobricker
  • Posts: 175
Re: 1989 K75 reanimation
« Reply #60 on: September 28, 2020, 09:54:15 PM »
You may use any photo from this blog.
But not kosher (what is that?) - koshak is the correct one.

Sorry - yes, Koshak. An autocorrection that I missed. My apologies. (corrected above for posterity ;-) )
  • Atlanta
  • K75RT '92 w/ 28k miles (former bikes: '82 FT500, 80's GL500 Silverwing, 550 Nighthawk and FINALLY an '88 K75S) https://georgiaroads.wordpress.com including my #GA4corners route

Offline koshak

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Re: 1989 K75 reanimation
« Reply #61 on: September 28, 2020, 11:37:09 PM »






piece of rusty metal strip with drilled holes replaces special BMW tool 11 2 800
  • Cyprus
  • 1989 K75, 1989 K1, 2008 K1200GT

Offline koshak

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Re: 1989 K75 reanimation
« Reply #62 on: September 29, 2020, 04:07:04 AM »
typical condition of all engine bolts


checking camshaft marks






  • Cyprus
  • 1989 K75, 1989 K1, 2008 K1200GT

Offline koshak

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  • Posts: 95
Re: 1989 K75 reanimation
« Reply #63 on: September 30, 2020, 02:41:15 AM »
findings after removing cylinder head  boohoo





  • Cyprus
  • 1989 K75, 1989 K1, 2008 K1200GT

Offline koshak

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  • Posts: 95
Re: 1989 K75 reanimation
« Reply #64 on: September 30, 2020, 02:42:44 AM »
control drain hole from mechanical seal completely blocked



  • Cyprus
  • 1989 K75, 1989 K1, 2008 K1200GT

Offline Martin

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Re: 1989 K75 reanimation
« Reply #65 on: September 30, 2020, 03:11:16 AM »
Green gunge is I believe from mixing two incompatible coolants, not all coolants can be mixed. I've had my Brick over 20 years and always used the same brand coolant mixed with distilled water and the radiator the last time I gave it a flush was totally clean.
Regards Martin.
  • North Lakes Queensland Australia
  • 1992 K75s Hybrid, Lefaux, Vespa V twin.

Offline koshak

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  • Posts: 95
Re: 1989 K75 reanimation
« Reply #66 on: September 30, 2020, 05:36:05 AM »
As it was said in the initial post, the bike was abandoned for 15 years. I am not aware what was happening with her before or during that period.

The bright green color - traces of the new liquid i put in, when was testing bike, original color of "gunge" you can see on the last close up photo of the drain space.
  • Cyprus
  • 1989 K75, 1989 K1, 2008 K1200GT

Offline koshak

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Re: 1989 K75 reanimation
« Reply #67 on: September 30, 2020, 11:10:36 PM »






  • Cyprus
  • 1989 K75, 1989 K1, 2008 K1200GT

Offline koshak

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Re: 1989 K75 reanimation
« Reply #68 on: October 01, 2020, 07:54:37 AM »
tool for filter removal does not fit into hole.


will solve that later. but now for removal bottom cover to be removed


that makes job easy


  • Cyprus
  • 1989 K75, 1989 K1, 2008 K1200GT

Offline Falco144

  • Curious
  • Posts: 3
Re: 1989 K75 reanimation
« Reply #69 on: October 05, 2020, 08:00:32 PM »
Subscribed
  • Chicago, IL U.S.A.
  • Current: 2016 ZX6RR, 2018 HD Heritage Classic, 2016 Suzuki Burgamn, 1967 Benelli 250

Offline koshak

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Re: 1989 K75 reanimation
« Reply #70 on: October 16, 2020, 02:46:19 AM »
further progress



output shaft



  • Cyprus
  • 1989 K75, 1989 K1, 2008 K1200GT

Offline koshak

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  • Posts: 95
Re: 1989 K75 reanimation
« Reply #71 on: October 16, 2020, 02:48:10 AM »
time for crankshaft





  • Cyprus
  • 1989 K75, 1989 K1, 2008 K1200GT

Offline daveson

  • ^ SuperNatural Motobricker
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Re: 1989 K75 reanimation
« Reply #72 on: October 16, 2020, 04:49:13 AM »
Hi,

Thanks for posting this deep build.

Question, I'm curious, could you measure or post a photo of the width of the tangs and grooves on the balance shaft gear to the balance shaft? I'm thinking from other threads that the gap might be excessive on later models, compared to the earlier ones, like yours.
  • Victoria, Australia
  • Current;'85 K100RT~100,000km; four other bricks. Past; 1500 Vulcan, V Star 650, KLX 250(dirt bike) TT250(dirt bike)

Offline The Mighty Gryphon

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  • Posts: 5528
Re: 1989 K75 reanimation
« Reply #73 on: October 16, 2020, 07:55:56 AM »
Yes, I'd like to see what yours looks like.  This is my 1994 K75RT.  Clanks between about 1200 and 2000 rpm.


* DSCN1754.JPG (62.09 kB . 768x576 - viewed 115 times)
  • In my garage in Marilla, NY
  • '94 K75RT Mystic Red, '91K100RS White/Blue, '89 K100RS Special edition White/Blue
Current:
'94 K75RT "Ilsa, She Wolf of the SS"
'91 K100RS "Moby Brick Too
'89 K100RS SE

Offline koshak

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  • Posts: 95
Re: 1989 K75 reanimation
« Reply #74 on: October 17, 2020, 12:17:55 AM »
Question, I'm curious, could you measure or post a photo of the width of the tangs and grooves on the balance shaft gear to the balance shaft? I'm thinking from other threads that the gap might be excessive on later models, compared to the earlier ones, like yours.

Can measure anything, why not.
But i am now not at home, but faraway. To measure need to return back first.
Bike is stripped to parts. I am just slowly posting photos of what is done.

Now busy with different thingy:
  • Cyprus
  • 1989 K75, 1989 K1, 2008 K1200GT

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