I have dyna coils not getting fire to plugs but getting fire to coils I used a test light when I turn engine over lights up but when I check plug wire it does not are they bad
A test light on the negative side of the coil should flash as the points open and close. If it doesn't then the points are bad if it does flash then the coils are more then likely bad. The green Dyna coils did have some issues. Should have asked first...do you have points or does it have a Dyna ignition system? Certain era of the Dyna pickups went bad.
If you are referring to the 750E on the engine case it means engine, its just part of the engine serial number. Just an E means it is a K series motor.