We were out on boat today and we were going along and we heard a little tap so turned engine off we then started it again (took longer than usual) we got back and the power had dropped any ideas?? both spark plugs are dry etc now there doesnt seem to be a tap
yes a knock and underpowered seemed to get us back ok no funny noises after we restarted it and no lumpy running seemed smooth just under powered. we think it may be running on one cylinder
Check plugs for spark
Are you running 1:100 oil, an overheating piston could knock
Run compression test.
Ensure fuel and filtration clean
Check fuel pump
Check gearbox oil for metal. A failing gearbox can knock.
