Author Topic: Not a cafe racer project K100  (Read 26719 times)

Offline DJEwen

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Re: Not a cafe racer project K100
« Reply #100 on: July 24, 2018, 03:55:51 PM »
Fantastic job on the new tail, Skunky. Well done.
  • Scotland
  • 1985 K100 'Revive', 1987 K100 LT

Offline Skunky

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Re: Not a cafe racer project K100
« Reply #101 on: July 28, 2018, 08:09:42 AM »
Finished the last bits and pieces.

Made new brackets and fitted the new Tailpiece MK3 with the light strip sunk into the tail. Looks much better I think. I also used rubber well nuts and allen bolts for a better looking and stronger fit. 


* file-26.jpeg (69.36 kB . 768x576 - viewed 545 times)
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Fitted the replacement Side Stand. Or as DJewen called it the Suicide stand. What a mad idea a stand that springs back up and is impossible to put down while sitting on the bike. I find if you get off, put it down with your boot you can lower the bike onto it. Never seen one like this before though  :dunno.   

Finally Calibrated the speedo. I took the bike out with a GPS program on my mobile phone and it was within 2 MPH. GPS show 40 Speedo said 38 No changes required.  The cheapo Chinese speedo works great. The indicator lights are clear and bright and its accurate. I can say first impressions are that it was a bargain at £21.00 Sterling. I will update on its long term reliability.


  • Derby GB
  • BMW K100lt
Rebuild it and they will come..
90 K100lt
Triumph Thruxton 900
Honda CB400F

Offline Skunky

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Re: Not a cafe racer project K100
« Reply #102 on: July 28, 2018, 10:46:38 AM »
  • Derby GB
  • BMW K100lt
Rebuild it and they will come..
90 K100lt
Triumph Thruxton 900
Honda CB400F

Offline Skunky

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Re: Not a cafe racer project K100
« Reply #103 on: August 02, 2018, 05:33:24 PM »
It seems I canít park without taking a photo
















 
  • Derby GB
  • BMW K100lt
Rebuild it and they will come..
90 K100lt
Triumph Thruxton 900
Honda CB400F

Offline Skunky

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Re: Not a cafe racer project K100
« Reply #104 on: August 30, 2018, 08:16:58 AM »
A few more photos. Since I finished I painted the exhaust and the Radiator grill black and fitted new tyres. I split the use between the BMW and my Triumph and I am loving it. She continues to run like a dream with no Issues. Itís a great bike 😀.


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  • Derby GB
  • BMW K100lt
Rebuild it and they will come..
90 K100lt
Triumph Thruxton 900
Honda CB400F

Offline Skunky

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Re: Not a cafe racer project K100
« Reply #105 on: September 18, 2018, 08:36:07 PM »
Hey People. Just thought I would share the cost of my Build. Being Anal I kept a spread sheet.


* Costs.png (15.81 kB . 624x311 - viewed 467 times)

I think it was a bargain. Still going great and still turning heads   :clap:
  • Derby GB
  • BMW K100lt
Rebuild it and they will come..
90 K100lt
Triumph Thruxton 900
Honda CB400F

Offline johnny

  • TrailBrakingThrottleWhacker
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  • Whacking...n...Chopping Sliding...n...High Siding
Re: Not a cafe racer project K100
« Reply #106 on: September 18, 2018, 09:07:13 PM »
greetings...

needs skunk tail handlebar tassels... and a skunk head on the front side of that cluster...

j o
  • :johnny i parks my 96 eleven hundert rs motobrick in dodge county cheezconsin  :johnny

Offline Skunky

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Re: Not a cafe racer project K100
« Reply #107 on: September 18, 2018, 09:38:56 PM »
greetings...

needs skunk tail handlebar tassels... and a skunk head on the front side of that cluster...

j o

That's a skunk face cluster and theres already a Skunk head inside the helmet. Or is that a helmet inside the skunk head.
  • Derby GB
  • BMW K100lt
Rebuild it and they will come..
90 K100lt
Triumph Thruxton 900
Honda CB400F

Offline Skunky

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Re: Not a cafe racer project K100
« Reply #108 on: May 22, 2019, 06:47:37 AM »
Morning folks

Been a long time since I posted here. Bikes still going well but I have a list of things I need to attend to.

1)  Sort out the air balance. Still runs rich. The plugs need regular cleaning.

2)  The Fan is not coming on. Possibly its not getting hot enough but I suspect either the relay or sensor.

3)  Bloody Starter motor. Had to jump start it a few times. Just found out about the reverse sprag thing. But its working again at the moment.

4)  Fuel light, Not really important as I have a working gauge.

Still looks good though


* file-44.jpeg (37.82 kB . 324x576 - viewed 413 times)

  • Derby GB
  • BMW K100lt
Rebuild it and they will come..
90 K100lt
Triumph Thruxton 900
Honda CB400F

Offline Skunky

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Re: Not a cafe racer project K100
« Reply #109 on: June 01, 2019, 05:24:49 AM »
Morning folks

Been a long time since I posted here. Bikes still going well but I have a list of things I need to attend to.

1)  Sort out the air balance. Still runs rich. The plugs need regular cleaning.

2)  The Fan is not coming on. Possibly its not getting hot enough but I suspect either the relay or sensor.

3)  Bloody Starter motor. Had to jump start it a few times. Just found out about the reverse sprag thing. But its working again at the moment.

4)  Fuel light, Not really important as I have a working gauge.

Still looks good though


* file-44.jpeg (37.82 kB . 324x576 - viewed 413 times)


Had some time yesterday.

1)  Sort out the air balance. Still runs rich. The plugs need regular cleaning.

Carried out a throttle body Balance using a set of vacuum gauges. And then tried the lean drop method to try to clean the CO2 mix. Seems to be running much smoother and cleaner. The adjusted is a fiddly little sucker to get to with my oversized mitts. It was really out a long way so I expect it to be better. I will run it for a while and chack for further soot.   

3)  Bloody Starter motor. Had to jump start it a few times. Just found out about the reverse sprag thing. But its working again at the moment.

Tried the reverse sprag cleaning thing a few times and it starts fine. I'm not actually sure if it isn't battery/alternator related as when it stopped working I lost the indicators lights and horn. I always leave my bikes on trickle chargers so it's always OK when I first start and leave but tends to fail later. Further investigation to follow.

4)  Fuel light, Not really important as I have a working gauge.

  • Derby GB
  • BMW K100lt
Rebuild it and they will come..
90 K100lt
Triumph Thruxton 900
Honda CB400F

Offline Skunky

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Re: Not a cafe racer project K100
« Reply #110 on: July 25, 2019, 01:29:22 PM »
Had a good day. The Beemer and my Thruxton passed their NOT tests today. The tester failed my K on throttle return sticky until I showed him the adjuster screw.

Still I in love💘

  • Derby GB
  • BMW K100lt
Rebuild it and they will come..
90 K100lt
Triumph Thruxton 900
Honda CB400F

Offline billday

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Re: Not a cafe racer project K100
« Reply #111 on: July 25, 2019, 03:05:56 PM »

3)  Bloody Starter motor. Had to jump start it a few times. Just found out about the reverse sprag thing. But its working again at the moment.

Tried the reverse sprag cleaning thing a few times and it starts fine. I'm not actually sure if it isn't battery/alternator related as when it stopped working I lost the indicators lights and horn. I always leave my bikes on trickle chargers so it's always OK when I first start and leave but tends to fail later. Further investigation to follow.

Euromotoelectrics sells a starter service kit that includes replacement brushes. Not much money and not a difficult job once you master pulling the starter motor. Worn starter motor brushes can lead to oddball electric issues, so this is totally worth doing.

As far as the sprag clutch, run the proper motor oil and that shouldn't be a problem.

Keep enjoying your K!
  • New York State, USA 10977
  • 1985 K100

Offline Skunky

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Re: Not a cafe racer project K100
« Reply #112 on: July 26, 2019, 02:22:53 AM »
Euromotoelectrics sells a starter service kit that includes replacement brushes. Not much money and not a difficult job once you master pulling the starter motor. Worn starter motor brushes can lead to oddball electric issues, so this is totally worth doing.

As far as the sprag clutch, run the proper motor oil and that shouldn't be a problem.

Keep enjoying your K!

I. Already stripped the starter and found the brushes to be ok. However the copper contacts were really cruddy and scortched. 20 minutes with a wire brush did the job. I've had no starter trouble since 😁
  • Derby GB
  • BMW K100lt
Rebuild it and they will come..
90 K100lt
Triumph Thruxton 900
Honda CB400F

Offline Skunky

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Re: Not a cafe racer project K100
« Reply #113 on: October 24, 2019, 07:41:12 AM »
Had a seal go on the front forks so stripped the wheel off and fitted new ones. Used a variation on Jonnyís plastic bag trick.


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  • Derby GB
  • BMW K100lt
Rebuild it and they will come..
90 K100lt
Triumph Thruxton 900
Honda CB400F

Offline DJEwen

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Re: Not a cafe racer project K100
« Reply #114 on: October 24, 2019, 07:50:45 AM »
Looks clean, Gary.

How are you getting on with the Honda?
  • Scotland
  • 1985 K100 'Revive', 1987 K100 LT

Offline Skunky

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Re: Not a cafe racer project K100
« Reply #115 on: October 26, 2019, 05:59:25 PM »
Looks clean, Gary.

How are you getting on with the Honda?


Taking too long. I bought an old school Audi TT that needed work and had a few jobs todo on the K. Frame is done and some of the chrome but still a long way to go
  • Derby GB
  • BMW K100lt
Rebuild it and they will come..
90 K100lt
Triumph Thruxton 900
Honda CB400F

Offline Skunky

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Re: Not a cafe racer project K100
« Reply #116 on: January 29, 2020, 05:45:20 PM »
Iíve taken my K bike off the road to revisit areas that I want to improve. Iím going to upgrade the handlebar controls and switches but without losing any functionality. I will also take the opportunity to change the brake lines and change some of the dodgy connectors. (Starting with the 4 way to the fuel tank) replacing them with new waterproof connectors. Just about have everything I need so here goes.
* 0438257F-F4CC-4E1C-887C-BBBE86081AF6.jpeg (40.22 kB . 432x576 - viewed 201 times)
  • Derby GB
  • BMW K100lt
Rebuild it and they will come..
90 K100lt
Triumph Thruxton 900
Honda CB400F

Offline Skunky

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Re: Not a cafe racer project K100
« Reply #117 on: February 01, 2020, 06:28:22 AM »
Completed some work over the last few days . Stripped down the controls brake and clutch levers and removed brake lines and fluid. I bought a slim choke control from a motoguzzi which will sit next to the new buttons and shortened the choke cable outer and make a new end to fit to the motoguzzi lever. I think it looks ok.

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  • Derby GB
  • BMW K100lt
Rebuild it and they will come..
90 K100lt
Triumph Thruxton 900
Honda CB400F

Offline Skunky

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Re: Not a cafe racer project K100
« Reply #118 on: February 01, 2020, 07:05:49 AM »
Sorry second image didnít attach

  • Derby GB
  • BMW K100lt
Rebuild it and they will come..
90 K100lt
Triumph Thruxton 900
Honda CB400F

Offline Skunky

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Re: Not a cafe racer project K100
« Reply #119 on: February 12, 2020, 04:58:36 AM »
Hi Kids. 

As part of the ongoing handlebar upgrade I decided to fit bar end indicators. Mainly because I park my bikes in a garage next to the wall I decided to go for a cheaper unit and see how they work so I purchased the following units for what can only be described as peanuts.


* Bar End Indicators.jpg (61.22 kB . 728x472 - viewed 145 times)

The Indicators came and to my astonishment don't look too shabby. They have both white and yellow LED's in and are pretty bright. The only downfall is that when the white light is on the yellow indicator does not show up very well when the indicators are running. Other than turning the lights off when I indicate (which I will no longer be able to do when the handlebar switches are finished), the only other option is to have a circuit that turns the white light off when the turn signal is received, as seen on new cars with LED day running lights.
I decided to fall back on my very basic electonics training and build a circuit to do the job.
So using a 12v relay a capacitor and a diode I came up with a very basic circuit that as Boris say's "Gets it Done!"

I made a video of the result just follow the link. 

  • Derby GB
  • BMW K100lt
Rebuild it and they will come..
90 K100lt
Triumph Thruxton 900
Honda CB400F

Offline billday

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Re: Not a cafe racer project K100
« Reply #120 on: February 12, 2020, 06:47:33 AM »
Those do look decent, and congratulations on figuring out the wiring.

I wonder about the safety of white running lights on the handlebar ends, though. Mightn't that confuse the already dim-witted motorist? Will it pass inspection?
  • New York State, USA 10977
  • 1985 K100

Offline Skunky

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Re: Not a cafe racer project K100
« Reply #121 on: February 12, 2020, 07:44:44 AM »
Those do look decent, and congratulations on figuring out the wiring.

I wonder about the safety of white running lights on the handlebar ends, though. Mightn't that confuse the already dim-witted motorist? Will it pass inspection?

Technically on the British MOT you should not have a white light facing toward the rear so an over enthusiastic Tester could see it as a problem in which case I'll disconnect it. As for the dim-witted motorist anything that makes us more visible has to help.   
  • Derby GB
  • BMW K100lt
Rebuild it and they will come..
90 K100lt
Triumph Thruxton 900
Honda CB400F

Offline Skunky

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Re: Not a cafe racer project K100
« Reply #122 on: March 01, 2020, 02:45:35 PM »
Been busy with life for a few weeks but a stinking cold means I managed to spend time on the handle bar project over the weekend. Sitting down in the warm with a soldering iron and a pile of components is the best  cold treatment Ever.
I have wired the handle bar switches and connectors and the indicator wires are in position for the bar end units. Ready to start the refit.


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  • Derby GB
  • BMW K100lt
Rebuild it and they will come..
90 K100lt
Triumph Thruxton 900
Honda CB400F

Offline billday

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Re: Not a cafe racer project K100
« Reply #123 on: March 01, 2020, 04:58:57 PM »
Elegant.
  • New York State, USA 10977
  • 1985 K100

Offline Skunky

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Re: Not a cafe racer project K100
« Reply #124 on: March 01, 2020, 06:02:36 PM »
Elegant.
Thanks Billday. I'm pleased with how its shaping up. More time on it tomorrow.
  • Derby GB
  • BMW K100lt
Rebuild it and they will come..
90 K100lt
Triumph Thruxton 900
Honda CB400F

Tags: 4 pin connector