Displacement:3.49cc / 0.213 cu.in. Bore:16.27mm / 0.641 in. Stroke:16.80mm / 0.661 in. Output:2.68 ps / 2.64 hp / 34,000 r.p.m. practical rpm range: 4,000-42,000 r.p.m. weight:352g / 12.42 oz. Standard accessories Glow plug T-P3 ?Reducer φ5.8?φ6.3? Exhaust seal ring Dust cap set (φ3?φ16?φ18)