Suzuki DF140A 140HP 4-Stroke 20″ Outboard Motor

Description

The Suzuki DF140A is a 140hp standard rotation outboard designed with a 20-inch shaft for multi-engine offshore boats. This 2.0-liter inline-4 platform handles extreme high-seas operation by distributing its massive 2044 cc displacement over an optimized dry weight of 394 lbs to maximize rigidity. Crafted explicitly for shallow sterns, the 20-inch shaft length ensures complete propeller immersion and continuous bite across aluminum offshore skiffs and fiberglass platforms navigating open ocean waters.

Sustaining high-speed cruising across extreme tournament distances is easy when running this heavy-duty powerhead within its 5600 to 6200 RPM threshold. The optimized 2.59:1 gear ratio translates massive internal combustion pressures into a sweeping torque curve to lift wide hulls on plane rapidly. Backed by proven Japanese engineering excellence, the propulsion platform provides absolute mechanical consistency for captains operating far beyond standard coastal cell phone service ranges.

Technical Specifications of Suzuki DF140A

• Electronic fuel injection incorporates sequential management with knock sensor tracking to maximize total thermal efficiency across all cylinders.
• A robust 40-amp gross alternator easily satisfies the heavy electricity demands of modern multi-display helms.
• Remote mechanical steering compatibility removes traditional complex hydraulic links to streamline rigging and responsive vessel tracking.
• The power trim and tilt feature makes trimming easy with a built-in automatic system for shallow waters.
• An extensive 5.5-liter oil reservoir ensures components stay thoroughly lubricated during long wide-open throttle runs.
• The standard-rotation two-stage reduction lower unit ensures traditional clockwise propeller spin for optimized single or primary engine thrust.

DOHC Inline Four Block

Advanced double overhead camshaft engineering treats the 16-valve cylinder configurations of this inline-4 block to optimize overall thermal efficiency. This advanced build path cuts unnecessary pounds from the powerhead block while drastically accelerating thermal dissipation under severe high-load operations.

Lean Burn Knock Sensor System

Multi-point sequential electronic fuel injection pushes fuel straight into the heart of each intake track for complete combustion cycles on 87 octane fuel. This automated network produces crisp throttle recovery and instant starting capability when navigating treacherous inlets or heavy head seas.

Hydrodynamic Two Stage Reduction

Oversized drive gears housed inside a hydrodynamic lower unit minimize underwater drag profiles during high-speed cruising maneuvers. This robust engineering dampens heavy gear-shift vibration while maximizing directional tracking on deep-transom multi-engine fiberglass hull configurations.

O2 Sensor Feedback Control

O2 sensor control networks integrate directly with the digital engine modules to maximize cruising range automatically on open water. This digital platform coordinates with a high-capacity 40-amp gross alternator to supply constant power to critical open-water electronics arrays.

High Performance Bay Hull Integration

High-performance bay boats, aluminum offshore skiffs, center consoles, and lightweight fiberglass runabouts ranging from 17 to 24 feet provide the perfect match. Its 20-inch shaft prevents propeller ventilation when ascending rollers in rough open-ocean swells.

Rapid Fluid Servicing Access Point

Unimpeded maintenance access is guaranteed by a multi-piece cowling array that detaches smoothly for immediate dipstick evaluation. Slick drainage pathways isolate waste fluids to allow for quick oil changes right at the marina slips. Pro Tip from the Shop: Regularly evaluate the internal zinc anodes tucked beside the cylinder water jackets to ensure galvanic corrosion doesn’t compromise the high-efficiency block alloy coatings.