Compression is more than 9 bar on each cylinder. Spark seem te be strong on each plug. I did check the difference in running with no 1 and then no 2 and then no 3 spark plug removed. It seems they are all contributing well to the performance
Hi, I bought a merc 60Hp 3 cyl 2 stroke, but cant get it to exceed 3000RPM under load. When in neutral I can get it to 4800 RPM. It should be able to do 5200 RPM.
Carbs has been cleaned,
Fuel lines cleaned
Fuel pump redone.
New spark plugs
When checking tbe crank idle and crank WOT timing this...