33MaintenanceEMU28216SpecificationsDimension:Overall length:936 mm (36.9 in)Overall width:358 mm (14.1 in)Overall height S:1068 mm (42.0 in)Transom height S:419 mm (16.5 in)Weight (AL) S:48.0 kg (106 lb)Performance:Full throttle operating range:5000–6000 r/minMaximum output:18.4 kW@5500 r/min (25 HP@5500r/min)Idling speed (in neutral):750 ±50 r/minEngine:Type:2-stroke LDisplacement:395.0 cm3 (24.10 cu.in)Bore × stroke:67.0 × 56.0 mm (2.64 × 2.20 in)Ignition system:CDISpark plug (NGK):B7HS-10Spark plug with resistor (NGK):BR7HS-10Spark plug gap:0.9–1.0 mm (0.035–0.039 in)Control system:TillerStarting system:ManualStarting carburetion system:Choke valveAlternator output:80 WDrive unit:Gear positions:Forward-neutral-reverseGear ratio:2.08 (27/13)Trim and tilt system:Manual tiltPropeller mark:FFuel and oil:Recommended fuel:Regular unleaded gasolineMin. pump octane:86Recommended engine oil:YAMALUBE 2-stroke outboard motoroilFuel:oil ratio:Regular gasoline:100 :1Lubrication:Pre-mixed fuel and oilRecommended gear oil:Hypoid gear oil SAE#90Gear oil quantity:370.0 cm3 (12.51 US oz) (13.05Imp.oz)Tightening torque for engine:Spark plug:25.0 Nm (18.4 ft-lb) (2.55 kgf-m)Propeller nut:35.0 Nm (25.8 ft-lb) (3.57 kgf-m)EMU28222Transporting and storingoutboard motorWARNINGEWM00690 Leaking fuel is a fire hazard. When