Author Topic: '87 K75 Revival....maybe.  (Read 7026 times)

Offline Rcgreaves

  • ^ SuperNatural Motobricker
  • Posts: 452
  • Parting out this 1987 S NOW, what do YOU need
Re: '87 K75 Revival....maybe.
« Reply #50 on: January 18, 2018, 05:46:40 PM »
Hook Line Sinker.  Excellent! :clap:
  • Livingston WI. USA-"With the good earth all around."
  • 1994 K75S 1987 K75S parts bike 1985 GL1200 Aspencade 1982 CM450A "Hondamatic"
Doing ďbetter than I deserveĒ

Offline gofargogo

  • ^ Motobrick Curious
  • Posts: 50
'87 K75 Revival....maybe.
« Reply #51 on: January 19, 2018, 03:10:19 PM »
Did another short Test ride around the neighborhood to see if maybe my clutch cable was stretched and not letting it fully engage and disengage the clutch, thus not allowing a good solid shift into 2nd.

The ride proved that the problem remains. So, since my final drive, my driveshaft and my tranny need to replaced, is there any reason (besides keeping it stock) to NOT replace everything with k1100 paralever parts?
Besides having to buy the paralever arm, and new shock, it seems like itís roughly the same cost for eBay parts.


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  • Santa Rosa, CA
  • 1987 K75s
1987 K75s, my first brick

Offline rbm

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  • Posts: 1842
Re: '87 K75 Revival....maybe.
« Reply #52 on: January 19, 2018, 09:15:36 PM »
No reason not to, and you'll enjoy the improved ride as well.
  • Regards, Robert
Toronto, Ontario

1987 K75 - Build Blog @http://k75retro.blogspot.ca/

Offline TaosBrick

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  • RedHotMotoBricker
Re: '87 K75 Revival....maybe.
« Reply #53 on: January 20, 2018, 01:05:06 AM »
No reason not to, and you'll enjoy the improved ride as well.
Second that!
Flog It Every Day - I mean, the BIKE!
'92 K75, '73 R75/5 Cafť,'89 Yam XT350
Expect Nothing, Be Ready For Anything.
- Samurai Maxim

Offline The Mighty Gryphon

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  • Posts: 4113
Re: '87 K75 Revival....maybe.
« Reply #54 on: January 20, 2018, 08:29:31 AM »
You'll be able to use radials on the back with a wider rim.
  • In my garage in Marilla, NY
  • '94 K75RT Mystic Red, '92K100RS White, '94 K75S Dakar Yellow
Current:
'94 K75RT "Ilsa, She Wolf of the SS"
'94 K75S "Cheetos"
'91 K100RS "Moby Brick Too

Offline gofargogo

  • ^ Motobrick Curious
  • Posts: 50
Re: '87 K75 Revival....maybe.
« Reply #55 on: January 21, 2018, 12:10:04 PM »
Yeah, Iím pricing three spoke wheels too. But in the short term, I can run my y-spoke wheel on the k1100 final drive?


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  • Santa Rosa, CA
  • 1987 K75s
1987 K75s, my first brick

Offline The Mighty Gryphon

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  • Posts: 4113
Re: '87 K75 Revival....maybe.
« Reply #56 on: January 21, 2018, 08:26:25 PM »
No problem, classic brick wheels are interchangeable as long as the tire you mount doesn't hit the swingarm.  A former member here, Frankenduck, has put Paralevers and K1100RS rims on K75's.
  • In my garage in Marilla, NY
  • '94 K75RT Mystic Red, '92K100RS White, '94 K75S Dakar Yellow
Current:
'94 K75RT "Ilsa, She Wolf of the SS"
'94 K75S "Cheetos"
'91 K100RS "Moby Brick Too

Offline gofargogo

  • ^ Motobrick Curious
  • Posts: 50
Re: '87 K75 Revival....maybe.
« Reply #57 on: January 22, 2018, 01:09:48 AM »
Awesome. Thank you.


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  • Santa Rosa, CA
  • 1987 K75s
1987 K75s, my first brick

Offline gofargogo

  • ^ Motobrick Curious
  • Posts: 50
Re: '87 K75 Revival....maybe.
« Reply #58 on: January 28, 2018, 11:16:44 PM »
Update: sourced a k1100 transmission and Iím in the process of installing it. God, getting to the splines goes so much faster the second time.

Hereís hoping itís not broken as well.


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  • Santa Rosa, CA
  • 1987 K75s
1987 K75s, my first brick

Offline gofargogo

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  • Posts: 50
Re: '87 K75 Revival....maybe.
« Reply #59 on: January 30, 2018, 02:15:04 PM »
The transmission works well, shift smoother than the old one too.
Iím still running the mono lever shaft and final drive until my eBay parts show up.
And Iím still sourcing parts to make it back into an ďsĒ but Iím enjoying the naked bike experience again. Itís been a while.



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  • Santa Rosa, CA
  • 1987 K75s
1987 K75s, my first brick

Offline TaosBrick

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  • Posts: 462
  • RedHotMotoBricker
Re: '87 K75 Revival....maybe.
« Reply #60 on: January 30, 2018, 11:39:09 PM »
Saw both an '85 K100 16 tooth FD and Driveshaft in good shape on fleabay, cost ya about $500 total. Got my setup for a good bit less than half of that. Good things come to those who wait...
Flog It Every Day - I mean, the BIKE!
'92 K75, '73 R75/5 Cafť,'89 Yam XT350
Expect Nothing, Be Ready For Anything.
- Samurai Maxim

Offline Skunky

  • ^ Proficient Motobricker
  • Posts: 346
Re: '87 K75 Revival....maybe.
« Reply #61 on: February 02, 2018, 04:28:57 PM »
Loving the tea cup holder built into the tragkorb  :hehehe
  • Derby GB
  • BMW K100lt
Rebuild it and they will come..
90 K100lt
Triumph Thruxton 900
Honda CB400F

Offline gofargogo

  • ^ Motobrick Curious
  • Posts: 50
Re: '87 K75 Revival....maybe.
« Reply #62 on: February 02, 2018, 04:31:10 PM »
Itís not proper shop time without the cup of tea.


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  • Santa Rosa, CA
  • 1987 K75s
1987 K75s, my first brick

Offline gofargogo

  • ^ Motobrick Curious
  • Posts: 50
Re: '87 K75 Revival....maybe.
« Reply #63 on: April 11, 2018, 09:49:28 PM »
I finally got enough parts to reinstall the fairing today and took it for a 10m freeway ride. Wow, this is is really nice! I think there's a bit more noise in my helmet, but no buffeting, at least compared to what I'm used to. I could really eat up some miles with this setup. I guess that means I should start fixing all the little things since I'll be keeping the bike. It's really amazing to me that this bike is 31 years old. I mean, my particular example is a bit flogged, but the sophistication of this thing must've been mind blowing in 1987.


I'm still running on my bad splines, probably 1500 miles since I purchased it but I know it's borrowed time.
  • Santa Rosa, CA
  • 1987 K75s
1987 K75s, my first brick

Offline The Mighty Gryphon

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Re: '87 K75 Revival....maybe.
« Reply #64 on: April 12, 2018, 01:00:25 AM »
Sounds like you are making some progress. :clap:
  • In my garage in Marilla, NY
  • '94 K75RT Mystic Red, '92K100RS White, '94 K75S Dakar Yellow
Current:
'94 K75RT "Ilsa, She Wolf of the SS"
'94 K75S "Cheetos"
'91 K100RS "Moby Brick Too

Offline gofargogo

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  • Posts: 50
Re: '87 K75 Revival....maybe.
« Reply #65 on: April 13, 2018, 04:59:30 PM »
Getting there! Now I need to take by an autobody shop and see how much they'll charge to get the fairing fixed and painted at least.


Does anyone have good photos of how the wiring harness is routed in front of the forks? I neglected to photograph that when I pulled it apart and now I can't remember how it's supposed to go. :( I've done a google search but didn't find anything detailing anything beyond what happens under the tank.


And how do classifieds work here? I can't see any threads and I've been on the hunt for a left front turn signal for ages.
  • Santa Rosa, CA
  • 1987 K75s
1987 K75s, my first brick

Offline Laitch

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Re: '87 K75 Revival....maybe.
« Reply #66 on: April 13, 2018, 05:10:04 PM »
Hey, how do classifieds work here? I can't see any threads and I've been on the hunt for a left front turn signal for ages.
Go up the menu to the Motobrick Marketplace to the FS-WTB-WTT section. The Classifieds Section isn't open yet. Maybe by Black Friday. :giggles
  • Along the Ridley in Vermont.
  • 1995 K75T 68,000 miles
I wept because I had no radials until I met a man who had no splines.
http://www.motobrick.com/index.php/topic,296.msg53303.html#msg53303

Offline gofargogo

  • ^ Motobrick Curious
  • Posts: 50
Re: '87 K75 Revival....maybe.
« Reply #67 on: April 13, 2018, 05:12:40 PM »
Go up the menu to the Motobrick Marketplace to the FS-WTB-WTT section. The Classifieds Section isn't open yet. Maybe by Black Friday. :giggles

Thank you. I never would've found that.
  • Santa Rosa, CA
  • 1987 K75s
1987 K75s, my first brick

Offline TaosBrick

  • ^ SuperNatural Motobricker
  • Posts: 462
  • RedHotMotoBricker
Re: '87 K75 Revival....maybe.
« Reply #68 on: April 15, 2018, 05:55:29 PM »
If you google "1987 K75 Wiring Diagram", a bunch of possibilities come up, mostly black and white. If you search a bit harder you may find a colour one. All Chilton's manuals come with full colour wiring diagrams.
Flog It Every Day - I mean, the BIKE!
'92 K75, '73 R75/5 Cafť,'89 Yam XT350
Expect Nothing, Be Ready For Anything.
- Samurai Maxim

Offline The Mighty Gryphon

  • ^ Quintessential Motobricker
  • Posts: 4113
Re: '87 K75 Revival....maybe.
« Reply #69 on: April 15, 2018, 10:51:53 PM »
I'm pretty sure you can get the turn signal for a K75S from BMW.  I bought one just last November.
  • In my garage in Marilla, NY
  • '94 K75RT Mystic Red, '92K100RS White, '94 K75S Dakar Yellow
Current:
'94 K75RT "Ilsa, She Wolf of the SS"
'94 K75S "Cheetos"
'91 K100RS "Moby Brick Too

Offline gofargogo

  • ^ Motobrick Curious
  • Posts: 50
Re: '87 K75 Revival....maybe.
« Reply #70 on: April 16, 2018, 01:22:59 AM »
I'm pretty sure you can get the turn signal for a K75S from BMW.  I bought one just last November.
For almost 25% of my bikes purchase price! (Iíll stop cheaping out on parts eventually...)


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  • Santa Rosa, CA
  • 1987 K75s
1987 K75s, my first brick

Offline Laitch

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  • Posts: 5936
Re: '87 K75 Revival....maybe.
« Reply #71 on: April 16, 2018, 08:11:45 AM »
For almost 25% of my bikes purchase price! (Iíll stop cheaping out on parts eventually...)
You found an extraordinary bargain and now everything has to be a bargain for you.  That's overreaching and the gateway to bad juju.

It's a fine looking machine though.  :2thumbup:
  • Along the Ridley in Vermont.
  • 1995 K75T 68,000 miles
I wept because I had no radials until I met a man who had no splines.
http://www.motobrick.com/index.php/topic,296.msg53303.html#msg53303

Offline gofargogo

  • ^ Motobrick Curious
  • Posts: 50
Re: '87 K75 Revival....maybe.
« Reply #72 on: April 17, 2018, 03:05:54 PM »
You found an extraordinary bargain and now everything has to be a bargain for you.  That's overreaching and the gateway to bad juju.

It's a fine looking machine though.  :2thumbup:


Fair point. Some of it is my inherent cheapness, some of it is aesthetics. The right turn signal is in good shape, but not new, and the rears are both pretty aged. One brand new turn signal upsets my sense of balance. I've spent a bit of money on the mechanical side of things, and will continue to do so. It's close to being mechanically sound, so I need to start repairing the more aesthetic parts.


My goal now is to sloooooowly fix and refresh every part of the bike. Slowly because I'm on a tight budget, and because it's in that dangerous phase where it's ridable and the weather is good. I'm going to delay some of the bigger portions until the winter (such as getting the body work fixed).



  • Santa Rosa, CA
  • 1987 K75s
1987 K75s, my first brick

Offline gofargogo

  • ^ Motobrick Curious
  • Posts: 50
Re: '87 K75 Revival....maybe.
« Reply #73 on: June 21, 2018, 11:08:41 AM »
Between A&S and eBay, I now have all the turn signals, and the bike is ďcompleteĒ from a parts perspective. The turn signals worked for 3 days before going dead, I fear that the flasher gave up the ghost but havenít pulled the tank to check, Iíve been too busy riding it.

These are neat bikes. [emoji3]


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  • Santa Rosa, CA
  • 1987 K75s
1987 K75s, my first brick

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