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Author Topic: 1987 K100LT Resto - from bits to brick  (Read 65749 times)

Offline FlatSix

  • ^ Proficient Motobricker
  • Posts: 146
Re: 1987 K100LT Resto - from bits to brick
« Reply #200 on: August 17, 2020, 05:24:04 PM »
Not yet, but it is on my list. 
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  • TX
  • K100LT
Dave in TX
1987 K100LT project
1971 Triumph Bonneville -sold to a couple young female tattoo artists

Offline FlatSix

  • ^ Proficient Motobricker
  • Posts: 146
Re: 1987 K100LT Resto - from bits to brick
« Reply #201 on: August 27, 2020, 11:14:31 AM »
Got my Carbtune Pro in the mail yesterday.  Will need to get a "t" I suppose for the vacuum line to the regulator.  I will try to not screw this up but remember I am the one who rebuilt a starter to turn backward.  Thanks in advance TMG.
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  • TX
  • K100LT
Dave in TX
1987 K100LT project
1971 Triumph Bonneville -sold to a couple young female tattoo artists

Offline Laitch

  • Faster than a speeding pullet
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Re: 1987 K100LT Resto - from bits to brick
« Reply #202 on: August 27, 2020, 11:18:37 AM »
Quote from: FlatSix on August 27, 2020, 11:14:31 AM
I am the one who rebuilt a starter to turn backward.  Thanks in advance TMG.
It's ok to hang the Carbtune upside down to lessen fluctuation of the bars. It's reading will be accurate in either position.
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  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles

Offline FlatSix

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  • Posts: 146
Re: 1987 K100LT Resto - from bits to brick
« Reply #203 on: August 27, 2020, 02:41:36 PM »
Quote from: Laitch on August 27, 2020, 11:18:37 AM
It's ok to hang the Carbtune upside down to lessen fluctuation of the bars. It's reading will be accurate in either position.

Then there is hope afterall. 
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  • TX
  • K100LT
Dave in TX
1987 K100LT project
1971 Triumph Bonneville -sold to a couple young female tattoo artists

Offline Falco144

  • Curious
  • Posts: 3
Re: 1987 K100LT Resto - from bits to brick
« Reply #204 on: October 05, 2020, 09:07:17 PM »
What a great project.

I am about to start a similar one on a '87 K100LT in the same color like yours.  This is a great!
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  • Chicago, IL U.S.A.
  • Current: 2016 ZX6RR, 2018 HD Heritage Classic, 2016 Suzuki Burgamn, 1967 Benelli 250

Offline FlatSix

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  • Posts: 146
Re: 1987 K100LT Resto - from bits to brick
« Reply #205 on: October 06, 2020, 11:11:24 AM »
Good luck Falco144.  It appears you have a pretty good base to start with. 

Let me know if I can be of any assistance.  It is a rewarding endeavor. 
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  • TX
  • K100LT
Dave in TX
1987 K100LT project
1971 Triumph Bonneville -sold to a couple young female tattoo artists

Offline FlatSix

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  • Posts: 146
Re: 1987 K100LT Resto - from bits to brick
« Reply #206 on: October 12, 2020, 03:28:12 PM »
Jiminy Christmas!  What have I done wrong?

Note:  My picture appears upside down.  I promise the bike is right-side up.
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  • TX
  • K100LT
Dave in TX
1987 K100LT project
1971 Triumph Bonneville -sold to a couple young female tattoo artists

Offline Laitch

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Re: 1987 K100LT Resto - from bits to brick
« Reply #207 on: October 12, 2020, 05:23:19 PM »
Quote from: FlatSix on October 12, 2020, 03:28:12 PM
Jiminy Christmas!  What have I done wrong?
If it's engine oil, your O-ring installation failed. Maybe the compression ring was installed with the wrong side facing the O-ring. Maybe it wasn't torqued. If it's transmission fluid, there's a seal leaking. Take a whiff.
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  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles

Offline FlatSix

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  • Posts: 146
Re: 1987 K100LT Resto - from bits to brick
« Reply #208 on: October 12, 2020, 07:12:18 PM »
It's oil.  Really aggravating since I know I followed all the procedures for installing the o-ring and torqued everything to spec.  I don't suppose this doesn't just happen from sitting?  I moved to a new house and been too busy to do any riding.  It's just been on the center stand for weeks. 
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  • TX
  • K100LT
Dave in TX
1987 K100LT project
1971 Triumph Bonneville -sold to a couple young female tattoo artists

Offline Laitch

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Re: 1987 K100LT Resto - from bits to brick
« Reply #209 on: October 12, 2020, 07:22:46 PM »
Quote from: FlatSix on October 12, 2020, 07:12:18 PM
I don't suppose this doesn't just happen from sitting? 
Take it for a ride and see if it stops leaking.
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  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles

Offline FlatSix

  • ^ Proficient Motobricker
  • Posts: 146
Re: 1987 K100LT Resto - from bits to brick
« Reply #210 on: October 12, 2020, 08:28:58 PM »
Quote from: Laitch on October 12, 2020, 07:22:46 PM
Take it for a ride and see if it stops leaking.

Worth a shot.
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  • TX
  • K100LT
Dave in TX
1987 K100LT project
1971 Triumph Bonneville -sold to a couple young female tattoo artists

Offline Laitch

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Re: 1987 K100LT Resto - from bits to brick
« Reply #211 on: October 12, 2020, 11:29:15 PM »
I'm serious, too. Make it as long a ride as possible—a veritable shake-down cruise.
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  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles

Offline FlatSix

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  • Posts: 146
Re: 1987 K100LT Resto - from bits to brick
« Reply #212 on: October 27, 2020, 11:36:41 AM »
Quote from: Laitch on October 12, 2020, 11:29:15 PM
I'm serious, too. Make it as long a ride as possible—a veritable shake-down cruise.

Laitch I hit it pretty hard for a long drive over a week ago and no seepage since then.  Also the old Triumph chopper found a new home with a couple young female tatoo artists.  It's been a good few weeks.  I hope long term to not see any more oil droplets but I think for now I will not be doing any exploratory surgery and just keep riding.  It is getting to be nice riding weather around here :)  Thanks for all the help.
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  • TX
  • K100LT
Dave in TX
1987 K100LT project
1971 Triumph Bonneville -sold to a couple young female tattoo artists

Offline FlatSix

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  • Posts: 146
Re: 1987 K100LT Resto - from bits to brick
« Reply #213 on: January 05, 2021, 03:36:43 PM »
Good afternoon fellas.

I feel like I need to wrap up this thread and thought I would do so on a good note.  The bike is running exceptional and been doing quite a bit of riding lately, including 2 up.  Nothing leaking thank goodness.  I did install a Ram mount for the phone so I can bluetooth with the Schuberth helmet electronics and it's pretty stable.  Also testing out a TMPS from Amerzon and its more annoying than I thought it would be.  Seems I lose a little air in the front tire and the monitor beeps like crazy.  I suppose it's better to know, but need to address that.  Only lingering issue I have is the fuel gauge isn't working.  I have another if that is the issue or perhaps I will need to get into the sender.  But that really isn't a big deal.  Never had one on my Triumph, nor did the one on my Triumph car from 1978 I had back in college work either. 

I want to say thanks to all those on here who helped, gave advice or tolerated my mistakes.  But in the end she is back to life and on the road and I couldn't be happier about it. 

Cheers!
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  • TX
  • K100LT
Dave in TX
1987 K100LT project
1971 Triumph Bonneville -sold to a couple young female tattoo artists

Offline The Mighty Gryphon

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Re: 1987 K100LT Resto - from bits to brick
« Reply #214 on: January 05, 2021, 05:34:12 PM »
Your bike looks pretty good!  Enjoy the heck out of it while us northerners are locked up for the winter.     

Don't be a stranger, keep us posted on your adventures.
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  • 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 daveson

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Re: 1987 K100LT Resto - from bits to brick
« Reply #215 on: January 05, 2021, 06:46:19 PM »
I want to say thanks for the time you've spent to share this inspiring build, which itself was obviously time consuming.

I always have respect when I see an old vehicle where it can be seen that a lot of effort has been made to restore it.
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  • Victoria, Australia
  • Current;'85 K100RT~100,000km; four other bricks. Past; 1500 Vulcan, V Star 650, KLX 250(dirt bike) TT250(dirt bike)

Offline gkanai

  • Motobrick Curious
  • Posts: 36
Re: 1987 K100LT Resto - from bits to brick
« Reply #216 on: October 04, 2021, 08:31:18 AM »
Quote from: FlatSix on July 23, 2019, 03:32:54 PM
So what I did was I put the stainless pin thru the bracket and footpeg but didn't install the small plastic bushing or washer or cotter pin yet.  I just put the spring loosely on the pivot pin and was able to get the spring lined up with the hole in the footpeg with the other side resting against the bracket.  I was then able to rather easily work the plastic bushing in place under the spring and install the washer and cotter pin.  All done.  I never did find instructions anywhere on the web on how to do it but my guess is that was how it was intended. 

Hope that makes sense for anyone dealing with the same problem.

Many months later, I just wanted to thank you for posting this as I was struggling with the same problem and your solution explained what I needed to do. Thank you!
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  • K75C

Offline frankenduck

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Re: 1987 K100LT Resto - from bits to brick
« Reply #217 on: October 04, 2021, 11:03:30 AM »
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Once I had a Collie pup. Dug a hole and covered him up. Now I sit there by the hour. Waiting for a Collie-flower.
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Offline FlatSix

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Re: 1987 K100LT Resto - from bits to brick
« Reply #218 on: October 05, 2021, 10:21:34 AM »
Duck to the rescue!

Update:  I recently had the tank off the bike for two reasons.  1.  I wanted to get a small dent fixed and the paint done correctly and 2.  I wasn't getting anything to register on the fuel gauge.  I drained the tank and got it off to the painter who did a pretty good job.  Paint match isn't perfect but looks good and the price was right. :) 

Afterward I took out the sending unit with intentions to just give it a good Deoxit cleaning and see what I could get it to register with my  multimeter.  But when I removed the sender it was toast.  Totally corroded and no way of making it work again so I broke down and ordered a new sending unit and rebuild kit for my gas cap.  It's all cleaned out and back together now.  Crossing my fingers it works as I have been out of town since I put the tank back on the bike and haven't even had the chance to gas her up.

Later folks.
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  • TX
  • K100LT
Dave in TX
1987 K100LT project
1971 Triumph Bonneville -sold to a couple young female tattoo artists

Offline The Mighty Gryphon

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Re: 1987 K100LT Resto - from bits to brick
« Reply #219 on: October 05, 2021, 12:29:00 PM »
Nice to hear from you again.  Hope you're enjoying your bike.
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  • 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 FlatSix

  • ^ Proficient Motobricker
  • Posts: 146
Re: 1987 K100LT Resto - from bits to brick
« Reply #220 on: October 05, 2021, 04:39:28 PM »
Quote from: The Mighty Gryphon on October 05, 2021, 12:29:00 PM
Nice to hear from you again.  Hope you're enjoying your bike.

Thanks TMG, am most definitely enjoying the bike.  My wife really likes going for rides on it as well.  The bike seems rather modern considering its age.  Nice and smooth.  Still buttoning up a few lingering issues like the new (when I got it) front tire likes to lose air.  Its odd because it doesn't go flat, just down to about 25psi.  And the fuel gauge issue I just worked on.  Also the transmission mostly shifts great but about a month ago I had to fight to get into first at a stop sign.  Planning on putting in fresh gear lube of a different brand and see if that helps but no big deal really.  Also want to add some additional lights up front when I get around to it.  Always something I suppose.

Later
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  • TX
  • K100LT
Dave in TX
1987 K100LT project
1971 Triumph Bonneville -sold to a couple young female tattoo artists

Offline FlatSix

  • ^ Proficient Motobricker
  • Posts: 146
Re: 1987 K100LT Resto - from bits to brick
« Reply #221 on: October 26, 2021, 10:34:00 AM »
She's back to running like a top.  Replaced the fuel sending unit and fuel pump.  The new fuel sending unit had a different plug than the one I had on the bike so I had to do a little electrical wizardry to make the plugs mate up.  Managed to get my fuel gauge working with the new sending unit and all good.  Now that she's running well I noticed again that the transmission seems clunkier than before...not sure if it's just me getting used to shifting the bike and being more firm with my shifts or what.  I do plan on changing over the tranny fluid and see if that helps any. 
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  • TX
  • K100LT
Dave in TX
1987 K100LT project
1971 Triumph Bonneville -sold to a couple young female tattoo artists

Offline The Mighty Gryphon

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Re: 1987 K100LT Resto - from bits to brick
« Reply #222 on: October 26, 2021, 11:59:08 AM »
Bike is looking pretty good.

I have found that shifting is very easy if you just sort of squeeze the clutch a little when shifting.  If I pull it all the way in, it's almost impossible to get a clean, smooth shift, especially on down shifts.  I suspect that completely disengaging the clutch stops the transmission input shaft from spinning fast enough for the gears to engage.

Have been adding about a teaspoon of molybdenum disulfide powder to the gear oil before I put it in the transmission.  It seems to lubricate all the sliding thingies in there so they move around a little easier.   
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  • 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 frankenduck

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Re: 1987 K100LT Resto - from bits to brick
« Reply #223 on: October 26, 2021, 12:05:43 PM »
Quote from: FlatSix on October 26, 2021, 10:34:00 AM
I do plan on changing over the tranny fluid and see if that helps any.

I'd use synthetic 75/140. (I use Mobil 1 but I think any name brand would be fine.)

Add half a tube of this:
https://www.ebay.com/itm/384392343899

The moly can take a few hundred miles to "bond" to the metal but should smooth out shifting.
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Once I had a Collie pup. Dug a hole and covered him up. Now I sit there by the hour. Waiting for a Collie-flower.
New to K bikes? Click here.
K Bike Maintenance & Mods: Click here.
Buy parts here.

Offline FlatSix

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  • Posts: 146
Re: 1987 K100LT Resto - from bits to brick
« Reply #224 on: October 26, 2021, 12:54:23 PM »
Thanks gents, here is what I got for the fluid change.  I know its not 75/140, but I picked it up a few weeks ago and will give it a try.

TMG, I think I know what you mean about the shifts.  I tend to only pull just enough to shift when my brain is on "auto-pilot" but when I am focused I probably pull too far.  I did feel the transmission was pretty snick-snick at first and lately more clunk.  Hope the fluid change helps.

Looking forward to some cool weather riding. 
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  • TX
  • K100LT
Dave in TX
1987 K100LT project
1971 Triumph Bonneville -sold to a couple young female tattoo artists
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