Dizzy = Distributor
breakerless ( preampifer) has two bolts coming out of the body with two leads,
one is blue, comes from fuse block on motor,
other is white/ black to CD unit,
Points has one white/black to CD unit,
preampifer has a "electric eye"
could be just dirty and needs a clean,
or could be knackered and need replacing,
or CD unit could be cactus as well,
aftermarket CD unit will work then,
there is a source available to troubleshoot ignition systems,
cdi something something lol