Hi guys. I have a 1988 mariner 150 with serial ob914 number. I recently took boat to have carbs cleaned and fuel pump rebuilt. When I got it back boat wasn't running right and only got worse. It got to where it would only run around 2000 rpm in throttle only and would die when tried to idle down. Took it home and parked it. Next day came out and it wouldn't start. Figured I would check for spark and sure enough had no spark anywhere. You guys have any idea where to start??
