I bought this "rebuilt" CDI unit from a guy who said it had been
stashed in his garage for 20 odd years. I took a peek inside and
there were some notes written on tape under the cover which
indicate it has been apart at least twice for repairs.
2011-06-18 11.13.50, on Flickr
Needless to say the additional components you see were insulated, albeit
with masking tape.
I took a couple of elec eng classes at university but let's just say I wasn't
as focussed as some of the other students ;-)
It seems to be the the Zener diode ZD1 is being bypassed in favour of the
'wire mount' components. I'd like to know what the other components are
being used for and whether I should unsolder the whole thing and replace
ZD1 with the correct component.
The wire mount Zener is
1N1373A.
andy