According to a technician I consulted:- The ignition modules work on 2 stroke whipper snipper engines and on 16 HP gasoline Briggs and Stratton. The wiring in the coils between these extremes is very different, but the modules still work. They detect the timing by algorithm in the chip, so they can accurately detect the build up and decay of voltage/resistance from the spinning flywheel and this allows them to fire correctly.
Ohms on my Pope coil = 4.3
Ohms on new ignition module = 4.54
I have no idea how low or high the Ohms should be on a brand new Pope coil. Perhaps they were around 4.5 to begin with? But this hardly matters when we consider a working ignition coil on a Briggs and Stratton will give a reading of between 2.5 – 5 k ohms.
The technician cannot see any reason why an EI will not work on a Pope engine. In theory it should.
I am still waiting for my EI modules to arrive in the post. In the meantime I tested the coil at 4.3 and the condenser is behaving the way it should (charging up and releasing the voltage and not shorting out). My biggest problem is the points are looking a bit worst for wear and not snapping together properly. It seems worn and the spring seems too weak. I had a look online for points for these old Wico/Wipac and they are non-existent. So it looks like my only hope of getting this engine to go is with an EI module.
