Weighing in at just 38 pounds, this compact, reliable motor is a great choice for aluminum tiller, inflatable soft hull, jon, utility, and sail boats. SPECIFICATIONS - 2.5 HP HP / kW 2.5 / 1.9 Engine type 1 cylinder Displacement (CID/CC) 5.2 / 85 Full throttle RPM 4500-5500 Fuel induction system 2-valve pushrod (overhead valve) Recommended fuel 87 octane compatible (up to 10% ethanol) Recommended oil Mercury FourStroke Oil 10W-30 Engine protection operator warning system Over-rev Starting Manual Steering Tiller with 360° turning Shaft length 15" / 381 mm Gearcase ratio 2.15:1 Dry weight *Lightest model available 41 lbs / 18 kg CARB star rating 3 Emissions Star Rating 3 Bore and stroke 2.16 x 1.42" / 55 x 36 mm Ignition CDI w/electronic spark advance Fuel system Carbureted Cooling system Water-cooled with thermostat Gear shift F-N Gearcase options Standard Trim system 4 position Trim positions 4 Exhaust system Above prop Shallow water trim range (degrees) 16 Color Phantom Black