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Suzuki DF40A

This is the only engine in the 40 hp class to offer DOHC performance, and also the only engine in its class to incorporate a maintenance-free, oil-bathed timing chain, which provides the outboard with increased durability and maintenance free operation. With larger displacements for increased power and performance, Suzuki's Lean Control System for improved fuel economy and designs that are more compact and lighter in weight than the predecessor, the new DF40A engines also incorporate the Suzuki Troll Mode System. During the 2011 Miami Boat Show, the Boating Writers of America presented Suzuki Marine with the NMMA Innovation Award for the DF40A/DF50A.

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Shaft Length L:508 mm
Starting System Electric easy start system
Weight L:104 kg
Engine Type DOHC 12-Valve
Fuel Delivery System Multi Point Sequential Electronic Fuel Injection
No. of Cylinders In-line 3
Piston Displacement 941 cm3
Bore x Stroke 72.5 x 76.0 mm
Maximum Output 29.4 kW
Full Throttle Operating Range 5000 - 6000 rpm
Oil Pan Capacity 2.7 litre(s)
Ignition System Fully-transistorised
Alternator 12V 19A
Mounting Shear Mount
Gear Ratio 2.27: 1
Gear Shift F-N-R
Exhaust Through Prop Hub Exhaust
Propeller Selection (Pitch) 9-17
Warranty Limited 5 years for recreational use
Trim Method Power Trim & Tilt
Midrange Product Brochure