Author Topic: What Did You Did To Your Motobrick Today ?  (Read 2998932 times)

Offline koapono

  • ^ Proficient Motobricker
  • Posts: 276
Re: What Did You Did To Your Motobrick Today ?
« Reply #2725 on: May 31, 2017, 12:39:12 PM »
On my last ride (see photographic ride report) I experienced 3 failures:
1) front brake light switch stopped working. I discovered this when cruise-control wouldn't return to idle after pulling in brake lever, quick stop and check of the brake light confirmed faulty switch/circuit. Rear switch worked fine.
2) heated grip on throttle side experienced a melt-down. The heat had been switched on for a long time. I was riding in rain and low temps and enjoying the toasty warmth when the right grip started to get hot then very hot then throttle became sticky and wouldn't return to idle when grip was released. Seems there was a period of excessive current draw which caused wires to melt through the plastic tube before the fuse blew. I had to remove throttle grip and then cut back the portion of melted tube until throttle would return to idle position. Throttle worked well for remainder of trip it just felt weird as 1/3 of the tube had been cut away.
3) right fork seal started leaking. I check the forks at each fuel stop, wipe them down with paper towels and check for oil. The leak was negligible but a leak none the less. I made it home before the seal failed.
I'll  post each repair as I make it.
About the bike. It's a 94 1100LT, I am the 3rd owner and acquired it in March of 2015. It had 50,000 miles on it at that time. There was a pile of dealer receipts, mostly for services and tires. There was no receipts nor history of any major repairs. As far as I know all the components are the original. I went through it from stem to stern, inspecting, checking, adjusting, lubricating and tweaking. I did not replace any components other than tires, fluids, brake pads and filters. It now has 94,000 miles on it and has been a dream machine! I rode the 4-corners of USA, been x-country 2 additional times and up and down the east coast several times. All without a hiccup! 
First will be the brake-light switch.
I could hear an audible click when I pressed and released brake lever so the switch was working mechanically. Access to the plug requires removal of fuel tank which is straight forward but a PITA. I installed quick-release connections on fuel lines and that really simplifies the task. After removing tank and isolating the connector, a quick check revealed a heavily oxidized plug. A thorough cleaning with contact cleaner and tiny brass brush made everything okay, continuity check across the switch verified proper function. While I had it apart I decided to clean every connector and plug I could access. It's a birds nest of wires tucked between the frame tubes but gentle pulling and pushing will grant access to just about every connector. I also removed and cleaned the ground connectors before tucking everything back in its place.
some pics:
front brake light connector, oxidized!
"The ground" you've all heard about, make it clean and shiny.
bench test switch.
the birds-nest of wires unraveled.
wires tucked in and all tidy.
contact cleaner and dielectric grease, I use a very light smear across female connector when reassembling.
  • prince george, VA (25 miles south of richmond)
  • 1994 K1100LT

Offline herseyb

  • ^ Proficient Motobricker
  • Posts: 366
Re: What Did You Did To Your Motobrick Today ?
« Reply #2726 on: May 31, 2017, 05:10:57 PM »
Put some techron and ran it hard home from Chicago, filling it up with pure gas once I got back to chezconsin.  Seemed to clear out the winter blues.

Ordered brake pads front and rear, realized I have never changed brake fluid on anything and don't know what I'm doing.  Anybody got a youtube video on that? 
  • Brooklyn
  • '93 K1100RS

Offline alabrew

  • ^ Proficient Motobricker
  • Posts: 288
Re: What Did You Did To Your Motobrick Today ?
« Reply #2727 on: May 31, 2017, 05:38:32 PM »
Best thing I ever did for brake fluid changes was buy a brake bleeder bag.


I attach the hose to the bleeder nipple, crack open the bleeder and pump fluid with the lever until the new fluid and no bubbles come through and then close the nipple. Works GREAT!
  • Birmingham, Alabama
  • 1985 K100, 1991 K100RS
Also:
2005 K1200LT
1979 R65
200,000 miles on BMW motorcycles

Offline jj4hm

  • Motobrick Curious
  • Posts: 25
Re: What Did You Did To Your Motobrick Today ?
« Reply #2728 on: May 31, 2017, 05:58:15 PM »
A good hard run on the brick is good for clearing out the blues.   Don't be intimidated by bleeding the brakes, as it's actually pretty easy to do.  Lots of YouTube videos on the subject to help you on your way.  Just take your time and don't let the reservoir run dry while you pull the new fluid through the lines. 
  • Minnesota
  • 1991 K100 RS 2004 K1200LT

Offline koapono

  • ^ Proficient Motobricker
  • Posts: 276
Re: What Did You Did To Your Motobrick Today ?
« Reply #2729 on: June 01, 2017, 06:03:03 AM »
replaced heated throttle grip, see reply #2725 for the back story.
A high current draw caused the heating element (wire) to melt through the plastic tube of heated grip. I believe the wires chafed through where the wires extend through the handle-bars and make the turn into the grip. There's an insulator in place but the wire moves every time you twist the throttle. There was no tell-tale sign of arching/sparking but you could see where the heating element melted through the tube. This caused the throttle to stick and not return to idle position when let go. I had to get off the road and whittle back the plastic tube until throttle response returned.
I had a spare set of heated grips (doesn't very one!) from a parts-bike I purchased last year so repair was simple enough. Rather than remove existing wire and snake the new wire through the handle bars, down around fork-clamp and under the frame I cut and spliced replacement grip into the existing harness. I was able to pull enough of original wire through handle-bars so that the splice would be several inches back from the point where the wire exits the handle-bar end. I soldered and shrink-wrapped the splice so it should be a trouble-free repair.
some pics:
melt-through.
proper length tube compared to faulty one.
new tube installed with a bit of 5 minute epoxy to glue insulating tape in place.
heated grip connector under the tank. Left and Right grips labeled.
clean the start button while you have grip disassembled.
  • prince george, VA (25 miles south of richmond)
  • 1994 K1100LT

Offline Laitch

  • Faster than a speeding pullet
  • Administrator
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Re: What Did You Did To Your Motobrick Today ?
« Reply #2730 on: June 01, 2017, 07:17:31 AM »
replaced heated throttle grip, see reply #2725 for the back story.
I was able to pull enough of original wire through handle-bars so that the splice would be several inches back from the point where the wire exits the handle-bar end. I soldered and shrink-wrapped the splice so it should be a trouble-free repair.
some pics:
Thanks for another useful repair explanation and pictorial, koapono.  :clap:
  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles

Offline K1300S

  • ^ Quintessential Motobricker
  • Posts: 1293
Re: What Did You Did To Your Motobrick Today ?
« Reply #2731 on: June 01, 2017, 11:35:40 AM »
Thanks for another useful repair explanation and pictorial, koapono.  :clap:

yes, nice!
Project Thread "K75s Midlife Refresh"
http://www.motobrick.com/index.php/topic,7810.0.html

Offline jaxon

  • ^ Proficient Motobricker
  • Posts: 158
Re: What Did You Did To Your Motobrick Today ?
« Reply #2732 on: June 01, 2017, 12:26:07 PM »
Weird light and starting issues. Took the advice of elders. Cleaned up starter contacts and added new brushes.
Wife asked me what I was doing and I kinda pretended I knew and she stared at me. I stared back with the fear she may have known I was bullshitting my way through this and she may know more about this than me (unlikely but still unsure). I tried that technique with an old commanding officer and it didn't go well cause he knew it. I later found out he had a master's degree in physics and electrical engineering. Which made me wonder what the hell he was in the Army for.

Anyway...I think I put it back together right. I noticed the terminal going thru the bottom is positive and wondered exactly how that gap is going to be maintained so I tightened the crap out of it.  I hope that it's centered in the hole, which by the way doesn't have hair around it and even if it did I hope the torque'n pulled it through to the center so it doesn't make contact when it shouldn't. Hope that's right. I suspect sparks would fly or something I wouldn't care for. I put a ohm meter on it and noticed numbers, and then no numbers as I spun it around. I placed $50 on black and and seem to have walked away even. But there is continuity from the terminal and the starter body.
Didn't have the motivation or tool to pull the bearing and replace it. I got lazy, but I knew this about myself. Now you do too.

Started right up. Satisfied.
  • Indiana
  • '92 K75S, '17 R1200GS LC
--
This space for rent

Offline MIbrick

  • ^ Motobrick Curious
  • Posts: 71
Re: What Did You Did To Your Motobrick Today ?
« Reply #2733 on: June 01, 2017, 08:47:18 PM »
Rode to work and home (twice) today. After work, drained the transmission and final drive, refilled with Mobile 1 synthetic 75w90 and MolyB (2 TBS in tranny, 1 TBS in final drive).  MolyB is a right PITA to clean up.  :nono


I do not know if the transmission oil was ever changed. Here's what I found on the magnetic drain plug when I pulled it.  Bike has 6500 miles on it, more or less.  Should this concern me?  It does...








Lastly, HUGE thanks to whoever it was that posted the suggestion in one of the many threads here to make a 'splash guard' out of aluminum foil to keep the oil off the center stand and rear tire.  FAN-FREAKING-TASTIC idea!
  • Michigan
  • 1986 K100RS (ohne Tragkorb)

Offline The Mighty Gryphon

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  • Posts: 6843
Re: What Did You Did To Your Motobrick Today ?
« Reply #2734 on: June 02, 2017, 09:05:04 AM »
I've been using Johnny's "YeeHaw" technique to free up the oil control rings on my K100RS.  A daily hundred mile flogging at 5+ grand seems to be loosening them up and reducing the oil consumption.  From 600 miles per quart, I am now getting more than 800 miles.
  • 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 Laitch

  • Faster than a speeding pullet
  • Administrator
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Re: What Did You Did To Your Motobrick Today ?
« Reply #2735 on: June 02, 2017, 09:23:46 AM »
Should this concern me?  It does...
The magnet is doing its job collecting particles; you're doing your job by changing the transmission oil at regular intervals. Your transmission is barely out of its infancy if that mileage you're citing applies to it. A little incontinence should be expected in this stage of its growth and development. Which would you prefer doing—disassembling the transmission looking for trouble or riding around gazing at your reflection in storefront windows or the paint of your highly polished cage?
  • Along the Ridley in Vermont.
  • 1995 K75 89,000 miles

Offline jaxon

  • ^ Proficient Motobricker
  • Posts: 158
Re: What Did You Did To Your Motobrick Today ?
« Reply #2736 on: June 02, 2017, 09:32:57 AM »
...Should this concern me?  It does...


--Begin Humor--
Why the hate? The drain plug did it's job. Your lack of tolerance is troubling. My Wife's 8 year old son saw this and said "Do I have to grow up in a world where people so dislike metal shavings they'd resort to harsh condemnation and critique?"
--End Humor--


But seriously, I've ever seen a magnetic drain plug with out something stuck to it. I'd be glad it's there.
  • Indiana
  • '92 K75S, '17 R1200GS LC
--
This space for rent

Offline herseyb

  • ^ Proficient Motobricker
  • Posts: 366
Re: What Did You Did To Your Motobrick Today ?
« Reply #2737 on: June 02, 2017, 08:29:54 PM »
replaced Z tube, replaced rear right turn signal mounting part, and remounted front right turn signal after my poor bike fell off the center stand during an early spring storm.   Stupid gravel driveway....

Replaced rear brake pads.    Couldn't get the dang caliper off so did it in place...   That worked fine, spent about equal time trying to get the caliper past the wheel vs. actually replacing the pads in place.

Front sets and brake new fluid still to do, but it is getting dark under my shade tree...
  • Brooklyn
  • '93 K1100RS

Offline Chaos

  • Administrator
  • ^ Quintessential Motobricker
  • Posts: 3157
  • Mars needs women!
Re: What Did You Did To Your Motobrick Today ?
« Reply #2738 on: June 02, 2017, 09:55:59 PM »
. Here's what I found on the magnetic drain plug when I pulled it.  Bike has 6500 miles on it, more or less.  Should this concern me?  It does...










So long as there are no big chunks no reason for alarm.  It's simply the final machining taking place.  This is considered normal on my other bike with about 40k....
  • 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 jakgieger

  • itinerant farmer
  • ^ SuperNatural Motobricker
  • Posts: 618
Re: What Did You Did To Your Motobrick Today ?
« Reply #2739 on: June 02, 2017, 10:47:57 PM »

I do not know if the transmission oil was ever changed. Here's what I found on the magnetic drain plug when I pulled it.  Bike has 6500 miles on it, more or less.  Should this concern me?  It does...


Chaos is right, BUT...I changed my tractor transmission/hydraulic fluid today, 12 gal capacity, 2 magnetic plugs, severe duty usage, 2yr/1000hr change interval, AND I did not have that amount of metal on my plugs.  Important points here are use quality lubricants (and moly), change when machine is warm, have a usage appropriate change interval, and don't drive like an 18 yr old :hehehe :bmwsmile .
  • Kansas USA
  • 1989 K100rs se
"What we've got here is failure, to communicate.  Some men, you just cain't reach.  So you get what we had here last week.  Which is the way he wants it...Well, he gets it.  I don't like it any more than you men do."

Offline MIbrick

  • ^ Motobrick Curious
  • Posts: 71
Re: What Did You Did To Your Motobrick Today ?
« Reply #2740 on: June 03, 2017, 08:05:07 AM »
Appreciate the feedback and guidance on the furry drain-plug question.  I'll make an entry in my log book "How I Learned to Stop Worrying and Love the Shavings."  :beer:


I was thinking that with the new tires mounted and the rear splines cleaned, checked, Staburag-ed and the oil and filter drained and changed and the tranny and final drive drained and changed and MolyB-ed, I'd be all set for the rest of the season. 


As I was out riding last night I started wondering if maybe I should get to that new shock and fork springs before fall, and maybe stainless lines would firm up and improve braking, but maybe some of those EDC floater discs and some new pads would be good, too, and I really should take the time to mount that low seat and all the bits...
  • Michigan
  • 1986 K100RS (ohne Tragkorb)

Offline idahoblueskies

  • Motobrick Curious
  • Posts: 10
Re: What Did You Did To Your Motobrick Today ?
« Reply #2741 on: June 04, 2017, 05:09:46 PM »
New shoes, went with the Shinko 712's. Changed the oil and replaced the oil sight glass that was too cloudy to see through. Next on the list is new fork seals...
  • 1995 K75

Offline Supershooter

  • ^ Proficient Motobricker
  • Posts: 228
Re: What Did You Did To Your Motobrick Today ?
« Reply #2742 on: June 04, 2017, 09:14:24 PM »
After being sprayed with gas on Monday, due to a hole in a fuel line, I removed fuel lines and crankcase breather. My bride will stop by the BMW shop tomorrow and get some new hose and cc breather. Should be back together Wednesday night if everything goes as planned.


Supershooter
  • Liberty Township, O'brien County, Iowa
  • 85 K100 RT

Offline Martin

  • ^ Quintessential Motobricker
  • Posts: 4475
Re: What Did You Did To Your Motobrick Today ?
« Reply #2743 on: June 04, 2017, 10:26:26 PM »

I've finally had enough of being stuck in traffic so today I fitted my RTD ( Rapid Transit Device). It works like a ripper, parts traffic like you wouldn't believe. I don't know why I didn't get one sooner. Device bought at the local recycle (Dump) for the astonishing price of $10.00 a set of steak knives was not included, I am looking for agents.
Regards a very rapid Martin.
  • North Lakes Queensland Australia
  • 1992 K75s Hybrid, Lefaux, Vespa V twin.

Offline jakgieger

  • itinerant farmer
  • ^ SuperNatural Motobricker
  • Posts: 618
Re: What Did You Did To Your Motobrick Today ?
« Reply #2744 on: June 04, 2017, 11:15:24 PM »
 :2thumbup: Martin, Does the LED on the front flash???? :bmwsmile
  • Kansas USA
  • 1989 K100rs se
"What we've got here is failure, to communicate.  Some men, you just cain't reach.  So you get what we had here last week.  Which is the way he wants it...Well, he gets it.  I don't like it any more than you men do."

Offline Martin

  • ^ Quintessential Motobricker
  • Posts: 4475
Re: What Did You Did To Your Motobrick Today ?
« Reply #2745 on: June 04, 2017, 11:22:01 PM »

Jack I'm wiring it to a flasher can and getting it a blue cover. Also going to wire my 140 Db air horn to the flasher can.
Regards Martin.



  • North Lakes Queensland Australia
  • 1992 K75s Hybrid, Lefaux, Vespa V twin.

Offline jakgieger

  • itinerant farmer
  • ^ SuperNatural Motobricker
  • Posts: 618
Re: What Did You Did To Your Motobrick Today ?
« Reply #2746 on: June 04, 2017, 11:27:41 PM »
 :hehehe :hehehe :hehehe I think we could do that with yellow/amber here...pretty sure that red or blue would result in a ride downtown!
  • Kansas USA
  • 1989 K100rs se
"What we've got here is failure, to communicate.  Some men, you just cain't reach.  So you get what we had here last week.  Which is the way he wants it...Well, he gets it.  I don't like it any more than you men do."

Offline Martin

  • ^ Quintessential Motobricker
  • Posts: 4475
Re: What Did You Did To Your Motobrick Today ?
« Reply #2747 on: June 05, 2017, 01:05:03 AM »

The fastest thing the cops have here are Suzuki Hyabusas no match for a good Brick. :2thumbup:
Regards Martin ( alias The Bandit)
  • North Lakes Queensland Australia
  • 1992 K75s Hybrid, Lefaux, Vespa V twin.

Offline The Dude

  • ^ SuperNatural Motobricker
  • Posts: 509
Re: What Did You Did To Your Motobrick Today ?
« Reply #2748 on: June 05, 2017, 01:51:19 AM »
You need it on the front!
A big thank you light in red at the rear.
I get the guilts every now n then.So lucky.
  • Auckland, New Zealand
  • K75s
Current.
TR6R 1973 from new.
Moto guzzi 850 III .1983 from,almost, new.
K75S 1986 from new.vin-0103141
On my second millionth km.give or take a hundred k Kay's.
"The Dude abides. I don't know about you but I take comfort in that. It's good knowin' he's out there."
All the best!

Offline Vespa no more

  • ^ Proficient Motobricker
  • Posts: 230
Re: What Did You Did To Your Motobrick Today ?
« Reply #2749 on: June 05, 2017, 07:25:29 AM »
Martin - are you having a laugh?
Are these legal?
There is another device(s) but I'm not sure what we've got in Australia.
https://www.wired.com/2005/08/traffic-hackers-hit-red-light/
https://mods-n-hacks.gadgethacks.com/how-to/trigger-traffic-lights-change-from-red-green-78256/
Can't you just go up the inside and get to the front of the lane?


Still, something else to put on the bricks

Guy
  • Wollongong NSW AUSTRALIA
  • K100RT 1984, K1100RT 1993, Vespa VNB125 1963 :)