Author Topic: Not a cafe racer project K100  (Read 11032 times)

Offline Laitch

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Re: Not a cafe racer project K100
« Reply #50 on: May 31, 2018, 05:59:41 PM »
 :popcorm
  • Along the Ridley in Vermont.
  • 1995 K75T 68,000 miles
I wept because I had no radials until I met a man who had no splines.
http://www.motobrick.com/index.php/topic,296.msg53303.html#msg53303

Offline Martin

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Re: Not a cafe racer project K100
« Reply #51 on: May 31, 2018, 07:04:30 PM »
Four pin plug under the right hand side of the petrol tank.
Regards Martin.
  • North Lakes Queensland Australia
  • 1992 K75s Hybrid, Lefaux, Vespa V twin.

Offline Skunky

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Re: Not a cafe racer project K100
« Reply #52 on: June 03, 2018, 02:29:38 AM »
Four pin plug under the right hand side of the petrol tank.
Regards Martin.
[/quotde]


Thanks Martin. I assume your talking about the fuel tank plug. I have already checked that. And cleaned all contacts. I didn't have time to delve too deeply as I was going away for a few days to celebrate my Dad's 84th birthday and visit my little Grand Monkey. Anyway fuel pump was working and I have fuel at the rail but not spitting out of the injectors. A quick check shows I have no voltages showing on the controller pins so that's where I will be going next. Probably due to the after market speedo installation. All the fuses are intact. I shall work through the wiring with Mr Haynes and sort it out tomorrow.

  • 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 #53 on: June 03, 2018, 02:59:45 PM »
Evening campers - Spent some time on the Bitch today. Started with Basics, remade all ground connections, opened cleaned and sealed all connectors under the tank. Then started working though Crazy Frog troubleshooting guide and the wiring diagrams. Anyway I found that the Fuel injection relay wasn't activating when the ignition was on and the Start button was pressed which I discovered was caused by a poor connection on the Ignition control unit. Great I thought and put her together for another try. Still would not start.
Back to the drawing board .


I have a couple of questions


Does the fuel pump only run when you press the Start button or should it run when the ignition is on?


And the same question with regard to the FI relay?



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

Offline Laitch

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Re: Not a cafe racer project K100
« Reply #54 on: June 03, 2018, 04:29:18 PM »
Does the fuel pump only run when you press the Start button or should it run when the ignition is on? And the same question with regard to the FI relay?
The short answer is Yes, the FI relay closes and the pump runs only when you press the starter button, on your K100LT. An explanation of what happens is found in Vogel's troubleshooting document if you scroll down through it about half way,
  • Along the Ridley in Vermont.
  • 1995 K75T 68,000 miles
I wept because I had no radials until I met a man who had no splines.
http://www.motobrick.com/index.php/topic,296.msg53303.html#msg53303

Offline Skunky

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Re: Not a cafe racer project K100
« Reply #55 on: June 04, 2018, 06:54:11 PM »
The short answer is Yes, the FI relay closes and the pump runs only when you press the starter button, on your K100LT. An explanation of what happens is found in Vogel's troubleshooting document if you scroll down through it about half way,

Thanks Laitch

I read Vogels step by step and have started working though it. Which is how I came by the FI relay not activating. I am at work for a couple of nights so won't be looking again until Wednesday or Thursday. I will be checking that the injectors are getting both positive and pulsing negative connections. And if not why not. I'm not sure how much of a fuel squirt I should see. I definitely have fuel pressure at the rail but there seems to be very little fuel on the plugs after trying to start. I would expect to see fuel escaping if I turn it over with a spark plug out. But I do not.
  • 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 #56 on: June 06, 2018, 05:29:10 PM »
Hi Brickers


I Decided to get the wheels back on and get the bike off of the blocks and then tomorrow I will deal with the starting issue.


  • 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 #57 on: June 10, 2018, 06:13:57 AM »
.
Don't hold your breath. Turns over OK. But would not start  :falldown:


So I need to go through everything and find out why. Checked the plugs and I'm getting a spark. seems to be a little fuel on the plugs but nor sure if there is enough or not. It could also be that there is not a full charge on the battery, I understand that they can be a little temperamental. So Overnight charge and give it another try in the morning. Failing that I will leave it until Wednesday and look at the fuelling.

Morning All

Yesterday was get the F##ker running day.

I armed myself with everything I needed to solve the starting issue. Multimeter, Electrical diagrams, De-oxit, Vogels non starting guide on my Laptop, Oil, Syringe, Patience and of course Cider.

Stage 1 - I opened cleaned and resealed all electrical sensors under the tank. Again!  :dunno

Stage 2 - Remove spark plugs, cleaned and checked the gaps. Then put a small squirt of oil in each cylinder to improve compression and smoke out the street  :nono. Put on the petrol tank and start..........................Still nothing  :dunno

Stage 3 - Start running through the Electrical system and Vogels check list. Injector and Temp sensor resistances were OK. Checked the FI relay had +12v and that +12v was reaching pin 9 on the ECU plug (and therefore the injectors) all good.
I then started on the negative pulsing from the by putting a 12v led between pin 9+ and pin 12 with the ecu plugged in and had no light up. I started to check the feed to the hall sensors and Airflow meter and when I was turning over the check to voltage I had a single pop ignition and a flash on the led. Bearing in mind the fuel tank was off at this time.
I refitted the tank and she started :clap: :clap: Smoke billowing down the street and very lumpy.
I let it run to burn off most of the oil and then removed and cleaned the plugs again. This time it started smooth as you like. :clap: :clap: :clap: :clap: :clap:
I would like to have found a definite fault but it appears the bike was just being reluctant.
 
  • Derby GB
  • BMW K100lt
Rebuild it and they will come..
90 K100lt
Triumph Thruxton 900
Honda CB400F

Offline rbm

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Re: Not a cafe racer project K100
« Reply #58 on: June 10, 2018, 07:10:50 AM »
Congrats on getting the F##ker running.  Seems yesterday was the worldwide "get the F##ker running" day because I helped a friend get his non-running K running.  It had been non-running since last year.  New plugs, fuel filter, and temp sensor cured the problems.
  • Regards, Robert
Toronto, Ontario

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

Offline Skunky

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Re: Not a cafe racer project K100
« Reply #59 on: June 10, 2018, 07:49:24 AM »
Thanks rbm, The information available on this forum and from the Guys that in habit it make the Job easy really. I come from an age where as kids we were always stripping and rebuilding our bikes and cars. Albeit they were a lot simpler. I despair at my children who would never change a tyre let alone a spark plug! :dunno.

Your conditioning circuit worked a treat by the way  :2thumbup:

I will post a video when I can find a way to make one small enough for the forum.
  • Derby GB
  • BMW K100lt
Rebuild it and they will come..
90 K100lt
Triumph Thruxton 900
Honda CB400F

Offline Laitch

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Re: Not a cafe racer project K100
« Reply #60 on: June 10, 2018, 08:01:04 AM »
I will post a video when I can find a way to make one small enough for the forum.
Make a YouTube video and post a link to it. Wear a mask and use an assumed name if your actual surname is Skunky. :giggles Nobody will ever know.
  • Along the Ridley in Vermont.
  • 1995 K75T 68,000 miles
I wept because I had no radials until I met a man who had no splines.
http://www.motobrick.com/index.php/topic,296.msg53303.html#msg53303

Offline Skunky

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Re: Not a cafe racer project K100
« Reply #61 on: June 10, 2018, 08:26:54 AM »
There is one on my Instagram gary skunk
  • 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 #62 on: June 10, 2018, 11:38:21 AM »
i refitted the tank and she started...

4 pin...

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Did the 4 pin about a dozen times. She actually fired first time with the tank off :dunno. That's how I knew she would start.  :neener:
  • Derby GB
  • BMW K100lt
Rebuild it and they will come..
90 K100lt
Triumph Thruxton 900
Honda CB400F

Offline johnny

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Re: Not a cafe racer project K100
« Reply #63 on: June 10, 2018, 11:40:25 AM »
demonstrates sometimes a dozen aints enough...

does the steering go to full lock before those mirrors hit the tank...
  • :usa#1 i parks my 96 eleven hundert rs motobrick in dodge county cheezconsin :usa#1

Offline DJEwen

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Re: Not a cafe racer project K100
« Reply #64 on: June 10, 2018, 02:20:14 PM »
Well done, Gary! Got a finished photo shoot?
  • Scotland
  • 1985 K100, 1987 K100 LT

Offline Skunky

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Re: Not a cafe racer project K100
« Reply #65 on: June 11, 2018, 06:29:08 PM »
demonstrates sometimes a dozen aints enough...

does the steering go to full lock before those mirrors hit the tank...

Yes it does Johnny , Otherwise they would be up
  • 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 #66 on: June 11, 2018, 06:31:17 PM »
Well done, Gary! Got a finished photo shoot?

Still not quite finished Dave, Have to make side panels and number plate holder lights.  etc. Then MOT etc. but she sounds good.

  • 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 #67 on: June 11, 2018, 06:36:44 PM »
So especially for Laitch but for anyone else a quick video.






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

Offline Filmcamera

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Re: Not a cafe racer project K100
« Reply #68 on: June 11, 2018, 08:13:37 PM »
Very nice looking bike! Congratulations and enjoy riding, it actually looks comfortable...
  • San Jose, Costa Rica
  • 1991 K100RS 16v ABS1
Poserbricker

Offline Laitch

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Re: Not a cafe racer project K100
« Reply #69 on: June 12, 2018, 01:20:41 AM »
Looking refined and elegant, Skunky! Thanks for the vid. Good luck with the MOT. It must be wonderful to be so well-protected from yourself. :giggles
  • Along the Ridley in Vermont.
  • 1995 K75T 68,000 miles
I wept because I had no radials until I met a man who had no splines.
http://www.motobrick.com/index.php/topic,296.msg53303.html#msg53303

Offline Skunky

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Re: Not a cafe racer project K100
« Reply #70 on: June 12, 2018, 06:54:15 AM »
Looking refined and elegant, Skunky! Thanks for the vid. Good luck with the MOT. It must be wonderful to be so well-protected from yourself. :giggles

Laitch, Not entirely sure what you mean :dunno. But if I was well protected I wouldn't have so many toys,

 or genital warts. :hehehe
  • Derby GB
  • BMW K100lt
Rebuild it and they will come..
90 K100lt
Triumph Thruxton 900
Honda CB400F

Offline Laitch

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Re: Not a cafe racer project K100
« Reply #71 on: June 12, 2018, 08:57:02 AM »
Laitch, Not entirely sure what you mean :dunno . But if I was well protected I wouldn't have so many toys,

 or genital warts. :hehehe
I mean your government loves you, wants what's best for you and expresses that through the MOT. As far the warts, try an old scouring pad. :giggles
  • Along the Ridley in Vermont.
  • 1995 K75T 68,000 miles
I wept because I had no radials until I met a man who had no splines.
http://www.motobrick.com/index.php/topic,296.msg53303.html#msg53303

Offline Skunky

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Re: Not a cafe racer project K100
« Reply #72 on: June 12, 2018, 05:55:30 PM »
I mean your government loves you, wants what's best for you and expresses that through the MOT. As far the warts, try an old scouring pad. :giggles

That's how I got em!!. Remember Kids, NEVER share needles or genital scouring pads.   :hehehe
  • 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 #73 on: June 20, 2018, 10:32:04 PM »
Morning. 

Recycle/design/rehash/paint/wrap = Rear number plate holder  :clap:

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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 #74 on: June 21, 2018, 12:33:06 PM »
Nice bit of up-cycling, Skunky.
  • Scotland
  • 1985 K100, 1987 K100 LT

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