Topic: 550 wiring to 750 engine

[Scotty G]

Hi everyone
Looking for some help with a question.. I have an old  1976 CB550 that is in pieces and has been left for a LONG time !! the engine is stuck but only because two plugs were pulled and left put.. anyway it’s a bit of a rough basket case and what I’m wondering Is I have an old 70’s CB750 chopper frame and motor with no wiring and electrical and want to know how much of the 550 wiring look could I use to run the 750 engine lights etc. or are they majorly different..

Thanks in advance for any help here.
Cheers
Scotty

[73hutch]

the components are the same: rectifier, regulator, coils, etc. use those parts and build a new simple loom with fresh wire and connectors.

[Gurp]

Building a chopper as previously mentioned you may be "short" in a few places.
But the harness will run a cb550/500\750 as long as you ise the parts that matxh the harness. The only connestion i see needing spliced of the top of my head is your charging system will probably have a different plug but you can steal it off your donor bike for the 750 motor

[Scotty G]

Thansk guys calj737 gurp and 73 hutch

I will def have a lot more questions coming for you ha ha..
I’ll post up a thread of the build as I start..

And thansk for the woring diagram too..


I’ve looked up some old santee type electrical boxes to house the rectifier coils etc. anyone know a good place to source these..

Thanks again
👍🍺🍺

[Scott S]

 http://www.hondachopper.com/

 And check eBay for old chopper parts.