Outboard engine DF300B
gasolineboatingdirect fuel injection

outboard engine
outboard engine
outboard engine
outboard engine
outboard engine
outboard engine
outboard engine
outboard engine
outboard engine
outboard engine
outboard engine
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Power source
direct fuel injection
Other characteristics

220.7 kW (300.1 hp)

Number of cylinders

6 unit


4,390 cm³ (148 US fl oz)

Engine speed

Min.: 5,300 rpm (33,301 rad.min-1)

Max.: 6,300 rpm (39,584 rad.min-1)


98 mm (3.9 in)


97 mm (3.8 in)


330 kg, 339 kg (728 lb)


ENGINE SPECIFICATIONS Starting System: - Electric Engine Type: - DOHC 24-Valve Fuel Delivery System: - Electronic Fuel Injection No. of Cylinders: - 6 Piston Displacement: - 4,390cc Maximum Output: - 220.7kw Full Throttle Operating Range: - 5,300 – 6,300 Steering: - Remote Oil Pan Capacity: - 8.0L Ignition System: - Fully-transistorised Alternator: - 12V 54A Engine Mounting: - Shear Mount Trim Method: - Power Trim and Tilt Gear Ratio: - 2.29:1 Gear Shift: - FNR Exhaust: - Through Prop Exhaust DIMENSIONS AND WEIGHT Recommended transom height: - X: 638mm (25in) XX: 762 (30) Weight: - X 330.0kg XX: 339kg Bore x Stroke: - 98 x 97mm Propeller Selection (pitch): - Front: 3 x 15.5 x 19.5-31.5 Rear: 3x15 x 19.5-31.5 Contra-Rotating Dual Propeller This new technology provides more grip underwater and because the contra-rotating propellers distribute the engine torque more evenly over the two propellers the torque per propeller decreases and gear diameter can be reduced. Direct Intake System The Dual Louver System incorporate a double shield of blades – each one designed in a dog-led shape and results in eliminating water intake, even in the face of the most severe on the water testing. The outer blades removes the spray and drains the mist resulting in the intake air temperature being free of moisture and no higher than 10° above ambient. Gear Case Design An ergonomic case design adds to the outboards computational fluid dynamics designed to and development to minimize resistance and provide the most efficient flow of water to the propellers.


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