Topic: Help identifying CB750 K3 control part number

[zoo mob]

I'm in the midst of an electrical nightmare regarding putting on new handlebars and not having wires match up. My thought is that I might have 1978 750f controls on my 1973 750 K3. Could someone confirm if these are the same part and/or what the numbers stamped on the outside of the controls are? Many thanks.

[mick750F]

Maybe this will help...http://www.satanicmechanic.org/partnos.shtml The left control on a '78F is a '78 750F code number...410. The right control on a '78 750F is a '77-'78 550K code number...404. Most likely they are different from a 750 K3...a presumption on my part.

Mike

[zoo mob]

This is the number on the outside of it: HM-14QB-T . Does this ring any bells for anyone?

[bryanj]

Outside numbers mean nothing as they are simply casting codes.

The switches from the later bike will have more wires on both switches.

The LH unit will have extra wires for the running lights and possibly a different horn function (powered to horn instaed of grounded from horn) Also a headlamp "Flash" option.

The RH switch will not have the switch to turn lights on and the way the starter button works is different--power is fed when button pressed instead of grounding when button pressed