No spark at coils

I downloaded the service manual and got the pet of now the problem is I can't seem to find one for the year of my bike all I seem to find is from 1974-1977 bikes.

The link I gave you includes a link to the manual for the 1980 - 1982 models. Take a look at the link below and be sure to look at the very last page it contains. There you will see the list of models covered by the manual. Ed

www.kz400.com/Workshop%20manual%20bilder...Service%20Manual.pdf

Will it tell me what parts are interchangeable with what bikes

Have you even taken a moment to look at it? :blink:

Yes I sure did look at it

Sources such as Partzilla often list other models using the same part being searched.

What is the voltage measured between the battery terminals at 4000 rpm?
Same with ignition switched off (engine not running)?
Same with ignition switched on (engine not running?

What is voltage measured at the ignition coil (ignition on, engine not running?

Good Fortune!