Spark plugs removed 50hp mercury outboard
No spark plugs in and jump started. I think it's in neutral when i spin the prop by hand, but when I put the battery on the prop spins a bit.



No spark plugs in and jump started. I think it's in neutral when i spin the prop by hand, but when I put the battery on the prop spins a bit.
It works but rapidly developed a miss fire, either not firing at all or firing way off time. Probably due to bad wiring or corrosion inside the ...
Mercury "Classic Fifty" 45 horsepower, 4-cylinder 2-stroke outboard engine running on engine stand. This is a 1987 model engine with low ...