Can anyone tell me what this is exactly, not sure , don't work on many 70's bike . 1975 Honda cb750 k

[fastcat1977]

What is this exactly anyone ..? Not familiar with it.

 

[fastcat1977]

What is this exactly anyone ..? Not familiar with it.

Is it a grounding terminal block ..?

 

[drgnrdr750]

It's a rectifier

 

[fastcat1977]

It's a rectifier

Do these need servicing or only replacing , never seen these older type , only use to the ones that have fins and solid housing

 

[drgnrdr750]

As far as I know replacement only, you can update to a newer model if needed.

 

[pickleknuckles]

The solid state update (w the fins) replaces the regulator and the rectifier. I swapped mine out when I replaced the main harness. It all worked fine but why bother w outdated electrical bits when modern electronics are more stable/reliable and cheap. Also stepped up to an AGM battery.