Specifications: Stock Number: DLEG0085 Displacement: 85 cc (5.18 cu in) Bore: 2.047 in (52 mm) Stroke: 1.574 in (40 mm) Total Weight: 5.62 lb (2.55 kg) Output: 8.5 hp @ 7500 rpm Includes: ignition module, spark plug, engine standoffs, vibration-dampening engine mount &: muffler with exhaust extension Requires: unleaded gasoline, oil, ignition battery &: propeller Suggested prop sizes: 25x10, 26x9, 27x8 Technical Data: Compression Ratio: 9.5:1 Gasoline/Oil Mix: 30:1 Replacement Spark Plug: DLEG8526 Weight Breakdown: Engine: Engine: 4.29 lb (1,944 g): Muffler: 8.11 oz (230 g): Ignition 4.27 oz (121 g): Motor Mounts: 8.5 oz (241 g): Hardware: 0.49 oz (14 g)