I have done all the test except the sensor coil output test on my 1978 140 Johnson...I'm having the backfire problem in another post. I can't figure out my meter for setting up for the sensor coil output test..want to make sure i"m doing it right. talks about setting my meter to "S" and "5" and I don't know what its talking about..maybe I'm reading it wrong..it doesn't say anywhere if I'm measuring voltage or what...I would suspect voltage since its an output test...if someone could help out here that would be greatly appreciated. Thanks! I just have a regular multimeter with the DVA adaptor..did all the other readings and tests and it went well...just can't figure this one out...still have to do the couls too. Thanks!