Author Topic: My CB550 Four k1 journey  (Read 16089 times)

Offline Jond99

  • Newbie
  • Posts: 42
    • View Profile
Re: My CB550 Four k1 journey
« Reply #15 on: September 20, 2025, 11:13:13 AM »
Xxxxx
« Last Edit: May 30, 2026, 12:12:32 PM by Jond99 »

Offline McCabe-Thiele (Ted)

  • Grogu
  • *
  • Posts: 8409
    • View Profile
Re: My CB550 Four k1 journey
« Reply #16 on: September 20, 2025, 11:50:51 AM »
Pretty sure all the relevant lights should work with the ignition on, including the instruments.
Honda CB400NA Superdream (current money puddle)
Honda CB500 K1 (second money pit)
https://www.sohc.co.uk/index.php/topic,28541.0.html
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html
This is a neat 500 restoration in the USA.
http://forums.sohc4.net/index.php/topic,151576.msg1731556.html#msg1731556

Offline Jond99

  • Newbie
  • Posts: 42
    • View Profile
Re: My CB550 Four k1 journey
« Reply #17 on: September 20, 2025, 12:00:16 PM »
Xxxx
« Last Edit: May 30, 2026, 12:03:05 PM by Jond99 »

Offline taysidedragon

  • SOHC Master
  • Posts: 1828
    • View Profile
Re: My CB550 Four k1 journey
« Reply #18 on: September 20, 2025, 12:36:46 PM »
Have you checked the instrument bulbs? They could be the problem.
Gareth

1977 CB400F
1965 T100SS

Offline McCabe-Thiele (Ted)

  • Grogu
  • *
  • Posts: 8409
    • View Profile
Re: My CB550 Four k1 journey
« Reply #19 on: September 20, 2025, 12:58:38 PM »
IIRC (on a 500) the brown white wires should be live when the main headlamp is on. Did they work before? Could the switch be faulty?

« Last Edit: September 20, 2025, 01:04:16 PM by McCabe-Thiele (Ted) »
Honda CB400NA Superdream (current money puddle)
Honda CB500 K1 (second money pit)
https://www.sohc.co.uk/index.php/topic,28541.0.html
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html
This is a neat 500 restoration in the USA.
http://forums.sohc4.net/index.php/topic,151576.msg1731556.html#msg1731556

Offline Jond99

  • Newbie
  • Posts: 42
    • View Profile
Re: My CB550 Four k1 journey
« Reply #20 on: September 20, 2025, 01:00:44 PM »

Xxxx
« Last Edit: May 30, 2026, 12:11:57 PM by Jond99 »

Offline Jond99

  • Newbie
  • Posts: 42
    • View Profile
Re: My CB550 Four k1 journey
« Reply #21 on: September 20, 2025, 01:03:25 PM »
Xxx
« Last Edit: May 30, 2026, 12:11:25 PM by Jond99 »

Offline McCabe-Thiele (Ted)

  • Grogu
  • *
  • Posts: 8409
    • View Profile
Re: My CB550 Four k1 journey
« Reply #22 on: September 20, 2025, 01:10:06 PM »
Sorry I'm not familiar with your 550 layout, clearly different to my 500 K1.
Honda CB400NA Superdream (current money puddle)
Honda CB500 K1 (second money pit)
https://www.sohc.co.uk/index.php/topic,28541.0.html
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html
This is a neat 500 restoration in the USA.
http://forums.sohc4.net/index.php/topic,151576.msg1731556.html#msg1731556

Offline Jond99

  • Newbie
  • Posts: 42
    • View Profile
Re: My CB550 Four k1 journey
« Reply #23 on: September 20, 2025, 01:19:25 PM »
Xxxx
« Last Edit: May 30, 2026, 12:11:02 PM by Jond99 »

Offline Bryanj

  • Grogu
  • *
  • Posts: 12379
    • View Profile
Re: My CB550 Four k1 journey
« Reply #24 on: September 20, 2025, 02:01:24 PM »
Brown wire goes to a pilot light in front headlamp which is not there in US bikes as they have a sealed beam unit, technicaly the side light is a legal requirement in UK.
Is the green dark green, which is earth, or light green ,horn.

Also there are a light blue with white stripe and orange with white stripe that should be disconnected in UK as they are the low wattage side of the front indicators classed as orange running lights also technically not legal in UK.
The clock lights power should be brown with white strip and only have power with ignition on and lights turned on, the 75 should still have the lights on/off on the RH switch as it was before the US lights always on rule

Offline Jond99

  • Newbie
  • Posts: 42
    • View Profile
Re: My CB550 Four k1 journey
« Reply #25 on: September 20, 2025, 02:52:57 PM »
Xxxx
« Last Edit: May 30, 2026, 12:03:25 PM by Jond99 »

Offline Bryanj

  • Grogu
  • *
  • Posts: 12379
    • View Profile
Re: My CB550 Four k1 journey
« Reply #26 on: September 20, 2025, 04:10:30 PM »
Something is connected wrong then

Offline Jond99

  • Newbie
  • Posts: 42
    • View Profile
Re: My CB550 Four k1 journey
« Reply #27 on: September 20, 2025, 09:15:40 PM »
Xxxxx
« Last Edit: May 30, 2026, 12:05:05 PM by Jond99 »