I have a B&S model 14 engine that I would like to get running to install in a Simp. walk behind. It has the (Magnamatic) ignition system and I get no spark. I have changed the points gapped them to spec and changed the condenser too. Is there a method to check the coil? If so is there more than one way and what readings would I be looking to read off the meter. I would appreciate any and all advice. Thanks ahead.