Boat engine : 2 stroke in-board petrol engine 25 - 50 hp (hydrojet)
460 MF (37 hp @ 6000 rpm)
Two Stroke International
· Spark Ignition allows weight reduction over compression ignition, which requires high compression and heavier duty parts.
· 2 Stroke Engine (compared to 4 Stroke Engine) is mechanically simpler, requires no valve train to rob power output and produces a power pulse on every revolution (every other revolution for 4 Stroke).
