How do I test the coil in this 25 hp model? the reading in the ohms scale between H.V. wire and ground shows no readings in both high voltage wires. If I read ohms between wires is 23.6k . Its a 2 cylinder- 2 cycle engine (mixed fuel). Is this the wrong coil installed(one for 4 cycles models) or something is wrong with it? Can somebody help? thxs.