Suzuki DF250SS

Tilt Limit System

To protect the boat and motor from damage that can occur when tilting the motor, both outboards incorporate a user adjustable tilt limit switch that prevents the outboard from tilting beyond a predetermined point.

Continuously Variable Valve Timing

The DF250 incorporates Suzuki’s advanced Variable Valve Timing (VVT). VVT is used to alter intake timing with the camshaft to optimize camshaft timing for low to mid-range operation. Combined with the outboard’s aggressive cam profile VVT delivers greater low to mid-range torque for powerful acceleration.

Multi Stage Induction

Suzuki’s Multi-Stage Induction system is used to increase engine performance. Each cylinder in this system is equipped with a set of short and long intake manifolds that are utilized in relation to engine speed. At lower rpm the longer pipes deliver an optimum volume of fresh air into the chamber, improving combustion and boosting low-end torque. At higher rpm, the valve on the shorter, direct intake pipe opens up letting air in the chamber directly boosting high-speed power output. (DF250/225)

Offset Drive Shaft

Pioneered by Suzuki, the use of the offset drive shaft on four-stroke outboards has long been utilized to reduce the size of the outboard. Found on all Suzuki four-strokes from the DF70A and up, this design positions the crankshaft in front of the drive shaft simultaneously moving the outboard’s center of gravity forward. While the design contributes greatly to the outboard’s overall compactness and increased power performance, it also moves the engine’s axis of inertia, the point where engine vibrations are at a minimum, up over the upper engine mount, thus greatly reducing vibration. These outboards also incorporate two-stage gear reduction designed to take maximum advantage of the power produced by these high-performance engines.