Model Enduro 9.9 Short Shaft 2-Stroke. Specifications: Cylinders: 2. Compression ratio: 7.0. Shaft (S) 17″. Prop shaft hp: 9.9 hp @ 5000 rpm. Weight: 83 lb. Control: Gear – fwrd, neutral and reverse. Features: Manual trim & tilt method, loop-charged scavenging creates a circular flow for efficient removal of exhaust gas and even distribution of air-fuel mixture, a lanyard clips to clothing or around the wrist, stopping the engine immediately if the operator leaves the helm, shallow water drive, start-in-gear prevention, extremely durable crankshaft, long life piston/piston ring, sturdy gears and gear case