Suzuki DF40: power and efficiency in a light, low-profile package
A Suzuki DF40 outboard comes pinned to the Klamath Grand Raffle prize boat at Lake Havasu Striper Derby, and this workhouse of a motor is actually very well-suited for pairing with a wide variety of fishing boats, including packing enough muscle to even power small pontoons and beyond.
Suzuki’s DF40 is an inline 3-cylinder 4-stroke engine with dual overhead cams and 12 valves. It features Suzuki’s proven multipoint sequential electronic fuel injection and Lean Burn Control technology. A network of sensors monitor engine performance and operating conditions in real time, using the onboard 32-bit ECM to predict fuel needs and deliver a leaner, more precise fuel mixture across the outboard’s operational range. The results show significant improvements in fuel economy across the entire powerband, including the cruising range where the engine is used a majority of the time.
The DF40 also features Suzuki’s proven maintenance-free timing chain. A simple, yet effective design has the chain running through an oil-bath to keep it lubricated throughout the life of the engine. An automatic hydraulic tensioner keeps the chain in proper adjustment.
A Suzuki DF40 outboard comes pinned to the Klamath Grand Raffle prize boat, and this workhouse of a motor is actually very well-suited for pairing with a wide variety of fishing boats, including packing enough muscle to even power small pontoons and beyond.
Suzuki’s DF40 is an inline 3-cylinder 4-stroke engine with dual overhead cams and 12 valves. It features Suzuki’s proven multipoint sequential electronic fuel injection and Lean Burn Control technology. A network of sensors monitor engine performance and operating conditions in real time, using the onboard 32-bit ECM to predict fuel needs and deliver a leaner, more precise fuel mixture across the outboard’s operational range. The results show significant improvements in fuel economy across the entire powerband, including the cruising range where the engine is used a majority of the time.
The DF40 also features Suzuki’s proven maintenance-free timing chain. A simple, yet effective design has the chain running through an oil-bath to keep it lubricated throughout the life of the engine. An automatic hydraulic tensioner keeps the chain in proper adjustment.
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