Other Stuff > Interchangeability

350 4

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Orcade-Ian:
Definitely different part numbers but the main physical differences are:

350 ignition switch positioned under left front of tank, 400 on steering head
Idiot lights on 350 as 500 as part of handlebar clamp, 400 are in between instruments.
350 USA had high rise bars so switchgear wiring longer.
Headlamp has no switch on some models

Good bits,
Elecs on air box almost identical
Brake switch positions same
Indicators more or less same positions

Not insurmountable problems if you are good at soldering and wiring, but I wouldn't want to pay someone to modify

matthewmosse:
I once recived a cb400/4 wiring loom which was miss described as being off a cb550k3, it was possible to get the bike (550/k5) up to mot standard with that loom but the result was not exactly elegant and had a few more connections to doubt  if fault finding. It was still a lot faster and easier to install than building one from scratch. I think I had to make up half a dozen bridging wires to being various bits to the right part of the bike - I think ignition related, I cannot remember exactly. If going this route it is worth ordering the correct colours of wiring to make things simple in the future. There is nothing I hate more than wiring repairs done using wrong colour wires as wires wind up changing colour mid length means you need to trace every wire back down its length every time something is disturbed.

Orcade-Ian:
Fully agree that you should always use correct colours and sizes for mods to loom and as said, easier to modify an existing 'nearly correct' loom than start from scratch.  Also if you have to unwrap parts of the loom, then use the correct non sticky looming tape to finish off.  PLEASE don't use scotchlocks anywhere on a motorcycle, unless you carry your bus fare home at all times.
Another plus point I forgot to add, the coils and points wiring are in the same positions, oh, and the neutral switch too.  What could possibly go wrong?

Bitsa (Ralph Wright - RIP):
Orcadian
Are you sure the lights for the 400 are in the clocks?The last one I built had them on the bar clamps ;)
Cheers
Bitsa

ka-ja:
Hi,
   400/4 Warning lights on a panel between the clocks and ignition switch?

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