Author Topic: ***FINISHED***: Father & Son 1988 K75S Rebuild  (Read 56868 times)

Offline jaxon

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Re: ***Finished*** Father & Son 1988 K75S Rebuild
« Reply #75 on: September 22, 2016, 03:34:08 PM »
From WebBikeWorld:

http://www.webbikeworld.com/r3/blue-job/blue-job-chrome-polish.htm

Blue Job Chrome Polish.

Your bike is really nice. I didn't notice it until you mentioned it. It's a chrome heat artifact even if you get rid of it it'll reappear.
  • Indiana
  • '92 K75S, '17 R1200GS LC
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Offline Martin

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Re: ***Finished*** Father & Son 1988 K75S Rebuild
« Reply #76 on: September 22, 2016, 05:27:55 PM »
Just after I got my Brick I did try Autosol metal polish. I  removed the muffler and used it in combination with the white buffing compound  ( for stainless steel) used on buffing wheels, fitted to a bench grinder.
Regards Martin.
  • North Lakes Queensland Australia
  • 1992 K75s Hybrid, Lefaux, Vespa V twin.

Offline Brad-Man

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  • '85 K100
Toys don't make the Man - Man makes the Toys...
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'75 RD350 w/Modified 400 engine, Chambers & MZB iggy

Offline jay1622

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Re: ***Finished*** Father & Son 1988 K75S Rebuild
« Reply #78 on: October 28, 2016, 06:58:28 PM »
That turned out beautiful! Seeing as you've got a recent RT boxer as well, what will be the bike of choice now? Does it give the younger bike a run for its money?

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You know, I have gone back and read this post a couple of times in the last few weeks. I just finished my first 500 miles on the rebuild and I have to say it's a total draw. My R1200RT is faster, quicker, more utilitarian and much more comfortable. The rebuild (1988 K75S) is what it is: older, slower, more rev'y, but it's smooth as silk, quiet and utterly flawless. I know this avoids your question, but they are so different between each other. Each has its own personality
  • Charlotte
  • Previous: 1986 K75S, 1977 R75/7, 1999 R1200C, 2003 R1150GS, 2001 F650GS, 2005 R1200RT... Current: 2005 R1200RT and my Brick, a 1988 K75S

Offline Martin

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Re: ***Finished*** Father & Son 1988 K75S Rebuild
« Reply #79 on: October 28, 2016, 08:18:54 PM »
 :2thumbup: So what's next??
  • North Lakes Queensland Australia
  • 1992 K75s Hybrid, Lefaux, Vespa V twin.

Offline jay1622

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Re: ***Finished*** Father & Son 1988 K75S Rebuild
« Reply #80 on: October 29, 2016, 12:28:02 AM »
:2thumbup: So what's next??

I'm going to write a story for a major national motorcycle magazine documenting the father/son aspect of the rebuild, and hope it's accepted by the editor. More to follow on that.

I managed to repair a nitrogen genetator for my son's high school auto tech. The instructor made my day when he offered his lifts and alignment rack as a token of appreciation. I've rebuilt the wheel ends on my F-150, threw in a leveling kit and dialed-in the alignment.

The wife's car is due for some service.

As much as I hate to say it, I need to focus on the house. I won't get anywhere near the pleasure and satisfaction of turning wrenches in the garage, but it does need to happen.

In five years, my youngest son will be ready. Maybe we'll do something then.
  • Charlotte
  • Previous: 1986 K75S, 1977 R75/7, 1999 R1200C, 2003 R1150GS, 2001 F650GS, 2005 R1200RT... Current: 2005 R1200RT and my Brick, a 1988 K75S

Offline Martin

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Re: ***Finished*** Father & Son 1988 K75S Rebuild
« Reply #81 on: October 29, 2016, 01:25:49 AM »
Hope I get to read it. Congratulations to both of you for an awesome project and best wishes for the future.
Regards Martin.
  • North Lakes Queensland Australia
  • 1992 K75s Hybrid, Lefaux, Vespa V twin.

Offline trek97

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Re: ***Finished*** Father & Son 1988 K75S Rebuild
« Reply #82 on: October 29, 2016, 10:43:39 PM »
Gorgeous machine.
  • Illinois
  • 87 K75C

Offline rbm

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Re: ***Finished*** Father & Son 1988 K75S Rebuild
« Reply #83 on: October 30, 2016, 08:09:20 AM »
From WebBikeWorld:

http://www.webbikeworld.com/r3/blue-job/blue-job-chrome-polish.htm

Blue Job Chrome Polish.

Your bike is really nice. I didn't notice it until you mentioned it. It's a chrome heat artifact even if you get rid of it it'll reappear.
The muffler is not chrome, it's stainless.  So, Blue Job might or might not work.  Blue Job depends on a chemical reaction with the chromium in bright chrome to remove stains.  It is not abrasive.  I used Blue Job on my chromed exhaust pipes on my Moto Guzzi and it worked as advertized.  I had to use a random orbital sander fitted with moistened Kimwipes as I couldn't apply enough hand pressure to get the job done.  The sander really made a big difference.

As for this stain, it might be better handled by removing the muffler and use a polishing regime of 1200 sandpaper followed by a large stationary buffer with stainless buffing compound.

As Jaxon rightly points out, it is a heat artifact and will most likely reappear.
  • Regards, Robert
Toronto, Ontario

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

Offline jay1622

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Re: ***Finished*** Father & Son 1988 K75S Rebuild
« Reply #84 on: January 22, 2017, 09:01:26 PM »
I've put a little over a thousand miles on the bike, and I'd say she's officially broken-in. The RPMs at highway speeds freak me out (averaging 80-85 on the raceway, er, uh... Highway), but I know she's solid. And talk about smooth! Now that I know she's worthy of serious road-miles, it's time to invest a little. I'll be sending the seat to Sargeant Cycle Product's custom shop to have a make-shift World Sport mod done to the current pan. I've added a Givi tank bag, Michelin Avtivs, and am in process of mounting a permanent AMPS GPS Powered mount for my Navi V. She's actually becoming a daily rider.


The first picture is the bike in the parking garage at the airport; I have been taking it to the airport for my shorter business trips.


The other two is a rough idea of the GPS placement.
  • Charlotte
  • Previous: 1986 K75S, 1977 R75/7, 1999 R1200C, 2003 R1150GS, 2001 F650GS, 2005 R1200RT... Current: 2005 R1200RT and my Brick, a 1988 K75S

Offline jc55

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Re: ***Finished*** Father & Son 1988 K75S Rebuild
« Reply #85 on: January 22, 2017, 11:13:38 PM »
She's gorgeous! Nicely done.
  • Carrollton, Ohio
  • '90 K100LT '77 Gl1000

Offline jay1622

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Re: ***Finished*** Father & Son 1988 K75S Rebuild
« Reply #86 on: January 31, 2017, 03:51:19 PM »
Had to take the dang bike apart just to get to the electrics box. I was temped to just run the wire under the tank and wire it directly to the battery. I kept having to tell myself, "Do it right... Do it right..." Anyway, she's installed and wired-in. I also did the first regular maintenance oil change too just for good measure. It's going to take me twenty oil changes before this moly-b assembly lube cycles out of the block.


  • Charlotte
  • Previous: 1986 K75S, 1977 R75/7, 1999 R1200C, 2003 R1150GS, 2001 F650GS, 2005 R1200RT... Current: 2005 R1200RT and my Brick, a 1988 K75S

Offline jay1622

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Re: ***Finished*** Father & Son 1988 K75S Rebuild
« Reply #87 on: March 24, 2017, 10:33:05 AM »

Foolish me for including the word "Finished" in the Subject line a while back...

Still going. Here are the recent additions: Givi tankbag, Corbin Seat, Wilburs springs, and a TFX 132 shock.



  • Charlotte
  • Previous: 1986 K75S, 1977 R75/7, 1999 R1200C, 2003 R1150GS, 2001 F650GS, 2005 R1200RT... Current: 2005 R1200RT and my Brick, a 1988 K75S

Offline TommyT

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Re: Ain't ***Finished*** Yet: Father & Son 1988 K75S Rebuild
« Reply #88 on: April 07, 2017, 08:29:43 AM »
Bike looks really great! :2thumbup:


I am interested in the new seat, can you take some closer pictures of it when time permits? I am just starting to ride my bike so I am still settling in to it as far as a comfortable riding position, but my initial feeling is that I would like to be a little back in the seat and the molded driver seat keeps be from sliding back. BTW I am 6' 4".


Also your tank bag, is it a tanklock type? How does the gas tank look without it? Do you really like it?


Thanks Tom.
  • Olive NY
  • 1990 K75RT, 1991 K100 16V(2), 1986 K75 "T"

Offline The Mighty Gryphon

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Re: Ain't ***Finished*** Yet: Father & Son 1988 K75S Rebuild
« Reply #89 on: April 07, 2017, 09:36:55 AM »
I have a bike I'd like to park in your garage next winter!  :yes
  • In my garage in Marilla, NY
  • '91K100RS White/Blue
Current:
'91 K100RS16V "Moby Brick Too"

Past:
'94 K75RT "Ilsa, She Wolf of the SS"
'92 K100RS16V "Moby Brick" (RIP, deceased in a vehicular assault)
'94 K75S Special Edition Dakar Yellow "Cheetos"
'89 K100RS Special Edition "Special Ed"

Offline jay1622

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Re: Ain't ***Finished*** Yet: Father & Son 1988 K75S Rebuild
« Reply #90 on: April 07, 2017, 11:03:09 AM »
Bike looks really great! :2thumbup:


I am interested in the new seat, can you take some closer pictures of it when time permits? I am just starting to ride my bike so I am still settling in to it as far as a comfortable riding position, but my initial feeling is that I would like to be a little back in the seat and the molded driver seat keeps be from sliding back. BTW I am 6' 4".


Also your tank bag, is it a tanklock type? How does the gas tank look without it? Do you really like it?


Thanks Tom.


Good afternoon! Thank you very much for the compliment; a lot has gone into this thing. I am 6'2" tall, and had Corbin take out an inch, which allows me to sit back a little bit further in the seat. If I read your message correctly, I believe this is along the same lines of what you would like to do, yes? To tell you the truth though, I wish I would've left it stock. Just something about the riding position... If you want to sit a little bit more upright, as opposed to being hunched over, definitely go with the stock set up. I am out of the country today, but should be back tomorrow. I will see if I can't get some better pictures of the seat, and get them to you ASAP.


As far as the tank bag, it is a Givi. It has four clips that attach it to a bra that wraps around the tank. I didn't think I would like it, but I actually love it. I will take pictures of that too to show you what it looks like with the bag on the tank and off.
  • Charlotte
  • Previous: 1986 K75S, 1977 R75/7, 1999 R1200C, 2003 R1150GS, 2001 F650GS, 2005 R1200RT... Current: 2005 R1200RT and my Brick, a 1988 K75S

Offline TommyT

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Re: Ain't ***Finished*** Yet: Father & Son 1988 K75S Rebuild
« Reply #91 on: April 07, 2017, 12:48:49 PM »
Thanks for the quick reply. Yes I was thinking what you said(about being further back) but I know I need to ride it more to see were I am at about position. I see what you are saying, further back means a longer arm reach and then probably more laid out.


The tank bag; I looked around for yours and could only find a version that uses their tank locking ring setup. I did not like the look of that or know how it would work on the K75. When the bag was not in use then you have a raised lip around the filler next sticking up an inch or so.


TT
  • Olive NY
  • 1990 K75RT, 1991 K100 16V(2), 1986 K75 "T"

Offline Martin

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Re: Ain't ***Finished*** Yet: Father & Son 1988 K75S Rebuild
« Reply #92 on: April 07, 2017, 01:23:52 PM »

I've had my 75 coming up to twenty years and as I've matured (aged) I have moved my handle bars up and back. As well as adjusting your seat adjusting the bars can help.
Regards Martin.
  • North Lakes Queensland Australia
  • 1992 K75s Hybrid, Lefaux, Vespa V twin.

Offline jay1622

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Re: Ain't ***Finished*** Yet: Father & Son 1988 K75S Rebuild
« Reply #93 on: April 07, 2017, 02:06:30 PM »
I've had my 75 coming up to twenty years and as I've matured (aged) I have moved my handle bars up and back. As well as adjusting your seat adjusting the bars can help.
Regards Martin.


+1!
  • Charlotte
  • Previous: 1986 K75S, 1977 R75/7, 1999 R1200C, 2003 R1150GS, 2001 F650GS, 2005 R1200RT... Current: 2005 R1200RT and my Brick, a 1988 K75S

Offline Dennis de Vries

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Re: Ain't ***Finished*** Yet: Father & Son 1988 K75S Rebuild
« Reply #94 on: April 07, 2017, 02:43:11 PM »
I asked you earlier what bike you prefered now, the new steed or the older K... Jan. 23 you mentioned the K becoming a daily rider... Does that mean you starting to like it beter than your newer bike? What was it again, an R1200RT was it not?

Not that it really matters, just curious how a 30 year old design holds up next to a modern bike...

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Offline jay1622

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Re: Ain't ***Finished*** Yet: Father & Son 1988 K75S Rebuild
« Reply #95 on: April 08, 2017, 03:18:40 AM »
I asked you earlier what bike you prefered now, the new steed or the older K... Jan. 23 you mentioned the K becoming a daily rider... Does that mean you starting to like it beter than your newer bike? What was it again, an R1200RT was it not?

Not that it really matters, just curious how a 30 year old design holds up next to a modern bike...

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How it holds up, comparing it to the R1200RT? In short, it doesn't. Granted, I've got 60k miles on my RT, and maybe only 3k miles on this S, but comparing the two is like comparing an original Mustang to a late model one. The RT handles, rides, accelerates and stops far better than the S. Like much much better. HOWEVER, if you ask me which one is smoother? Which has more character? Which one gets my head to tilt when I look at it? It's the K75S every single time. The S is soo much more top heavy. That and it's longer wheelbase makes me feel like it's slower to commit to turns. The RT looks, and is bigger, but the center of gravity has always felt like it was in between my shins. I've, quite literally, ridden twistes with that bike for over twelve hours, and never felt fatigued. Admittedly, the RT is my daily rider, so that familiarity goes a long way. One week from today, I'll be venturing out with the S to a road here in the US called the Tail of the Dragon (US129). If my memory serves me correct, is 318 curves in 11 miles. Perhaps then I will have a more definitive answer. Until then, thank you for reminding me to answer this. While they are identical in so may ways... Size, weight, design and overall technological advancement have certainly separated the two. Interestingly enough, my RT is twelve years old now. I am holding out for the next re-design... 2020 perhaps? I can't wait to see what they'll have figured-out by then.
  • Charlotte
  • Previous: 1986 K75S, 1977 R75/7, 1999 R1200C, 2003 R1150GS, 2001 F650GS, 2005 R1200RT... Current: 2005 R1200RT and my Brick, a 1988 K75S

Offline Dennis de Vries

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Re: Ain't ***Finished*** Yet: Father & Son 1988 K75S Rebuild
« Reply #96 on: April 08, 2017, 05:58:14 AM »
Thanks for answering that, i'll stick to my old trusty then, and stop lusting over the new stuf. I like a bike with a bit of character (who would've thought i'd ever say that about a K bike? [emoji12] )

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Offline jay1622

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Re: Ain't ***Finished*** Yet: Father & Son 1988 K75S Rebuild
« Reply #97 on: April 14, 2017, 03:52:15 PM »
Bike looks really great! :2thumbup:


I am interested in the new seat, can you take some closer pictures of it when time permits? I am just starting to ride my bike so I am still settling in to it as far as a comfortable riding position, but my initial feeling is that I would like to be a little back in the seat and the molded driver seat keeps be from sliding back. BTW I am 6' 4".


Also your tank bag, is it a tanklock type? How does the gas tank look without it? Do you really like it?


Thanks Tom.


Took me a while to get to this, but here are some pictures. Let me know if you want anymore, or different angles.
  • Charlotte
  • Previous: 1986 K75S, 1977 R75/7, 1999 R1200C, 2003 R1150GS, 2001 F650GS, 2005 R1200RT... Current: 2005 R1200RT and my Brick, a 1988 K75S

Offline jay1622

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Re: Brief Clip Added/Tail of the Dragon: Father & Son 1988 K75S Rebuild
« Reply #98 on: April 18, 2017, 12:25:54 PM »
Here's a very short clip of me taking the rebuild around one of the curves on US 129, The Tail of the Dragon. She did great, but I think I may have burnt the gear box fluid up (Is this possible)? I rode HARD for seven hours straight; up and down the Dragon five times. What is that, like, a little over 3k curves? Shifts remained between 2nd and 3rd the whole ride.

Volume up... She sounds sweet, don't she?  :curvy-road

  • Charlotte
  • Previous: 1986 K75S, 1977 R75/7, 1999 R1200C, 2003 R1150GS, 2001 F650GS, 2005 R1200RT... Current: 2005 R1200RT and my Brick, a 1988 K75S

Online Laitch

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Re: Brief Clip Added/Tail of the Dragon: Father & Son 1988 K75S Rebuild
« Reply #99 on: April 18, 2017, 01:05:23 PM »

Volume up... She sounds sweet, don't she?  :curvy-road
I think I heard a little rattle in the engine.  :giggles
  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles
I wept because I had no radials until I met a man who had no splines.

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