JMichael My humble apologies! You were right!!! I found I had the output of coil one and two flopped when I checked the motor with a timing gun. A million thanks!
If you're just landing here from the Internet, here's the recap: I welded a pontoon without disconnecting the wiring harness...
Thanks for the thought Mike. The wiring from the switch module is such that the wires are of different lengths to reach the the correct coil pack. I did find that I had the polarity wrong on the first cylinder and corrected it.
I've been able to get the motor to backfire now, but not...
Made some welding repairs to hull, but forgot to pull the harness off the motor; now engine won't start. :oops:
I have replaced the Switchbox as the original had a 1 ohm ground on Kill lead coming from switch box after welding.
Also found plug on top cylinder had shorted between electrode...