Displacement: 3.49cc Bore: 16.4mm Stroke: 16.55mm Output: 2.65 ps / 2.61 hp @ 34.000RPM Practical RPM range: 4.000-42.000 Engine weight: 350g Includes: Reducer: 6.5II & 7.5mm) O.S.SPEED P3 glow plug Exhaust seal ring (1pc) Dust cap set (3mm, 16mm, 18mm - 1pc each)