Author Topic: With Spring, A New K  (Read 6375 times)

Offline TrueAce

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With Spring, A New K
« on: March 21, 2016, 03:03:42 PM »
Last Fall I started prepping a barn find '85 K100RS to become a GS Tracker......she is out and running, more details later, meet "K-Badness"!
  • Florida
  • '85 K100GS, '85 K100RSSC,', '94 K1100RS,'10 S1000rr,'14 Ural Sidecar, '15 R Nine T

Offline The Mighty Gryphon

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Re: With Spring, A New K
« Reply #1 on: March 21, 2016, 03:27:06 PM »
Oh crap!  I'm getting this urge to do a Canadian enduro again...  Or maybe a two day trials.  (They have less mud and faster trails up there.)

How much does it weigh? 
  • 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 TrueAce

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Re: With Spring, A New K
« Reply #2 on: March 21, 2016, 11:10:05 PM »
Exactly 410 lbs. And not nearly as heavy nor cumbersome as the R1100GS. Let me take one of your left-over K's and build you a GS!
  • Florida
  • '85 K100GS, '85 K100RSSC,', '94 K1100RS,'10 S1000rr,'14 Ural Sidecar, '15 R Nine T

Offline Chaos

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Re: With Spring, A New K
« Reply #3 on: March 21, 2016, 11:29:50 PM »
Nice!  Be nice to loose that big old airbox and put a little cone filter in it.
  • sw ohio
1987 K75S    VIN 0231
Original owner, Original litter
200,000 miles (plus or minus) and 5 paint jobs
sold 6/23
2023 Ural 2WD sidecar (BMW's bastard step child)

Offline Laitch

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Re: With Spring, A New K
« Reply #4 on: March 21, 2016, 11:35:52 PM »
Are those Shinko 705 tires? Have you ridden them on sand and dirt yet, Ace? What's the story on them?
  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles

Offline The Mighty Gryphon

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Re: With Spring, A New K
« Reply #5 on: March 21, 2016, 11:39:01 PM »
410#!  I was hoping it would be a little lighter.  My XL125's weighed in at 175-180 ready to go.  That's a lot to move when it's wedged between a couple trees on a muddy hillside.  Still...

I think it's more of a desert bike.  Northeastern clay mud not so much.
  • 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 Martin

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Re: With Spring, A New K
« Reply #6 on: March 22, 2016, 12:46:00 AM »
If the Honourable Minister for Finance & Recreation would release the funds that's what I would like to build, or a K75 GSK ( K is for Kompressor ).
Regards an envious Martin.
  • North Lakes Queensland Australia
  • 1992 K75s Hybrid, Lefaux, Vespa V twin.

Offline TrueAce

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Re: With Spring, A New K
« Reply #7 on: March 22, 2016, 06:43:07 PM »
Chaos......got an airbox scheme I'm working on, got to work around the air meter, and don't want to go out the rear, like Brutus (sp) did up in Alaska. That'll be Gen 2 with an alternative exhaust.

Gryph.......it ain't a damn moped-powered Honda like you used to pick up and put in your trunk. The motor alone weighs about 350 lbs. Good thing I hid a lithium and ditched the 100lb. battery. The real secret was drilling out all the solid tubes in the frame. Lots of guys don't know you can run hollow tube frames ( old racers trick).

Laitch...good eye....they are indeed Shinko 705's in dual sport tread, 120x80 front, 140x80 rear. The constraint on the rear is not clearance, as you know it's wheel width. And I have been working on a suitable alternative other than a three spoke. The bike was designed for Forest Service roads, mainly sandy. Debated full knobs which I have used before, but the duals are more versatile for paved transition sections.

Since it had been sitting 5+ years, the fuel pump system, brake master cylinders, calipers, lines,splines, fluids all had to be done.
By stubbornly removing all handle bar controls I created some interesting wiring and starter challenges, saving about 20 lbs. of wiring from stripping out OEM and running new circuits. The lithium battery in the relay box was a challenge. The tank was a solid 18 hours of wet-dry, AFTER using a chemical remover for the original white paint. Debating leaving that heavy center stand on there, and have some tweak's and polishing to do, but it's running good! I am grinnin'! :riding:
  • Florida
  • '85 K100GS, '85 K100RSSC,', '94 K1100RS,'10 S1000rr,'14 Ural Sidecar, '15 R Nine T

Offline The Mighty Gryphon

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Re: With Spring, A New K
« Reply #8 on: March 22, 2016, 09:34:29 PM »
Ace, That is one mean looking bike!  I would bet it would be a hoot to get it crossed up on a gravel road sweeper.  The only thing I would change is the bars.  For fast off road operation I would opt for something wider and higher that would allow a comfortable standing position with good steering leverage.   Didn't notice, but did you install metal pegs with serrated edges that grab your boots?  Even in sand, a front fender would keep a lot of crap out of the radiator.

Around here a light bike is a necessity in the woods.  Steep greasy hills, trees two feet apart, off camber turns and ruts up to the skid plate.  Hardly ever see a straightaway longer than a couple hundred feet.  If you go off road around here you need something you can easily pull out of a hole by yourself.  Back in the day, I beat an awful lot of open class bikes with my little moped.
  • 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 TrueAce

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Re: With Spring, A New K
« Reply #9 on: March 22, 2016, 10:06:13 PM »
I know where you're coming from ,MG, since starting with an original DT-1, original Gary Bailey Motocross school esteemed graduate, and pioneer of early motocross that I am. Can't say I ever got the dirt out of my system. I do have wider bars, but haven't sourced the RT cables needed to install yet. And the pegs are stock....notice how I cut down the foot plates to minimize the bulk. Still looking.......don't like the cafe rear-sets. Still debating a GPS speedo, I tend to just go with the flow. It is way more than optimum for a scrambler, but is way more agile than current and former GS bikes I've owned. I built it to be a National Forest bike for N.C. mountain roads and Florida sandy, muddy tracks. When I get to the end of asphalt, I hate turning around ,which I do on my road bikes, but I always make a note, check the maps, and come back with a gravel road bike to see where it goes. And with K-Badness, I didn't trash a good condition K-bike to build it....this one was headed to the junk yard by the PO. It wont be doing any Hare scrambles, not because it couldn't, but cause I don't have the stamina to run hard like I used to! Ah, ain't time a bitch! At least that's what Mighty Griphon tells me.
  • Florida
  • '85 K100GS, '85 K100RSSC,', '94 K1100RS,'10 S1000rr,'14 Ural Sidecar, '15 R Nine T

Offline Laitch

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Re: With Spring, A New K
« Reply #10 on: March 22, 2016, 10:24:26 PM »
Take a look at this, Ace. Google translate will help. The website is in the Facebook post.
  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles

Offline TrueAce

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Re: With Spring, A New K
« Reply #11 on: March 22, 2016, 10:46:49 PM »
I like it! The wider bars, up-swept pipes, side key, but I wouldn't add the weight of a second pipe, just run one. The seat looks good, too. I did a custom trim of the stock seat pan and foam to get matching lines for the tank rear up-sweep, and didn't use the frame loop so the tail could be more rectangular from the rear. The neat think about customs is all the great ideas you can get from them. Thanks for sharing.
  • Florida
  • '85 K100GS, '85 K100RSSC,', '94 K1100RS,'10 S1000rr,'14 Ural Sidecar, '15 R Nine T

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