My 68 johnson 9.5 is only running on one cylinder apparently. I say this b/c I pulled one plug while it ran and it kept running and then reattatched the plug wire, then pulled the other and the motor shut off. I fired it again(all onnected) and it ran but still only on one cylinder. Where do I start troubleshooting? I figure it is the coil for the lower cylinder but I'm no expert. with the cowling off and flywheel off which coil goes to which cylider? And then furthermore how do I get the plate off that the coils mount to in order to change the plug wires. I know how to use a meter but I just dont know what Im looking for. Please help. -woody74