Posted by broot on Aug 04, 2012; 11:58pm URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Cylinders-1-4-not-firing-tp4026413p4026427.html
The book I have has a wiring diagram for the cb750k. On this wiring diagram the pulse generator is wired into the spark unit and the spark unit is wired into the ignition coil. The wiring diagram I have looks more or less like this one: