Bought this engine a couple of weeks ago. Engine would start right up and run good at high RPMs but stall and die in the "slow" or "shift" position. Assumed I needed a carb rebuild. However, while starting and checking the water pump, I tried to see how low it would go before stalling, and it died. Now it won't restart at all. Compression is 140 on lower and 135 on upper. Tried new plugs and nothing. Bought a spark tester, and I am only getting a faint orange spark on lower and nothing on upper cylinder. New at outboards, but kind of confused as to why it would suddenly lose spark. I realize a motor this old could use a tune up kit and a carb rebuild, but I'd actually like to know if it's the points, coil, etc that has caused it to lose spark. Any suggestions would be greatly appreciated.
