SOHC.co.uk Forums > CB750

Wiring help needed

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WestMids-CB:
No worries.

McCabe-Thiele (Ted):

--- Quote from: WestMids-CB on October 03, 2026, 01:35:58 PM ---A few weeks ago I disassembled the front end on my K5 for a clean and refurb. As wiring is my achilies heel I took a lot of photographs of the birds nest in the headlight bucket as I knew I'd come unstuck once the time came to plug in the wires I had no reference points , since my phone decided to not automatically back up my photos I'm now in a pickle as I have no reference for the wiring.

Some wires are colour coded and easy to work out but there are others that I'm having problems with


--- End quote ---

You are never too old to learn how to sort out the wiring in a motor Cycle headlamp.
How hard can it be?
I was in your situation back in 2020 when I did my first project at the age of 72.
If you can wire a three pin plug you can certainly sort out the Birds nest.

I found that if you take your time, be methodical it's not as difficult as it looks. One problem can be identifying the colour of a wire that has faded with age. Worth cleaning the ends with solvent like Meths, pair back the insulating tape on the loom so you can identify the original colours.

When you connect the obvious wires where the colours match and the connectors are male to female you will quickly reduce the unknown wires to a manageable few. Often there are the odd wires from a loom that are 'spare' as they use the same basic loom for different markets.
Also there is a general chart of Honda wiring colours and what they are used for.

Unfortunately my Laptop suffered a major failure last week and I ended up with being unable to access my files due to not knowing the Bitlocker code. I've lost about 3 months of files as I had been lax with backing up on a regular basis.

I will hunt down the list I have of Honda wiring colours and post it as soon as I can.

McCabe-Thiele (Ted):
You should find these helpful, one was composed by a member here, the second I found on the www.

WestMids-CB:

--- Quote from: McCabe-Thiele (Ted) on October 03, 2026, 04:05:42 PM ---You should find these helpful, one was composed by a member here, the second I found on the www.

--- End quote ---

Many thanks

Ricardo1500:
Hi

I have a decent colour wiring diagram and a written list of headlight bucket wiring connections for my K6 so it should be close. If you'd like to pm me your email address I'll gladly send it all as a pdf

Cheers
Rich

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