Ignition modules

[DeBe]

This all started a few years ago when I realised a popular Atom ignition module was no longer produced. At $35 Australian I considered them expensive. Decided to reverse engineer one, & found that they could be built for around $6. They were sold originaly to replace ign points & condencer on small engines. A lot of coils since have this circuit built into them.

 

[DeBe]

More pictures of the construction.

 

[DeBe]

First picture is the Atom module I pulled apart to find the component values. The rest of the modules all do the same job. Also pic of the module on my Victa lawn mower.

 

[DeBe]

All these modules are polarity sensitive, if you don't get a good spark reverse the wiring. It depends on the polarity of the triggering pulse from the ignition coil. Some pictures of a Negative firing pulse on these modules.

 

[DeBe]

This is a Positive pulse coil waveform.

 

[DeBe]

Use an old Kawasaki weed wacker as a tester for modules.

 

[Bicklebok]

Cool! Good work!