Kawasaki 31 HP Horizontal Engine FD851D-(N)S01-S
Developed to deliver fuel-injected power to compact spaces, the Kawasaki FD851D DFI engine is perfect for tough turf and tight fits. This liquid-cooled V-twin horizontal shaft engine offers reliable performance and power to help you muscle through even the most daunting of demands. And with multi-port digital fuel injection, compact electronic control unit, choke-free operation, and more, this engine was built to take it.
Features:
Engine performance, by the numbers.
- From power and torque numbers to engine features and more, the following is here to help communicate engine performance details and capabilities. Be sure to consider these specs to help ensure the engine you’re choosing is a match to your mowing needs.
Multi-Port Digital Fuel Injection
-
Utilizes a high-precision Multi-Port Digital Fuel Injection (DFI) system that delivers an optimized fuel spray to each intake port independently, ensuring instantaneous throttle response and superior fuel economy compared to carbureted systems.
Liquid-Cooled
-
Features a comprehensive liquid-cooling architecture with a high-flow water pump, allowing the engine to maintain a stable operating temperature. This leads to tighter internal tolerances, a significantly longer service life, and quieter operation under heavy industrial loads.
Overhead V-Valve
-
Designed with an overhead V-valve (OHV) configuration, which improves volumetric efficiency and combustion quality, resulting in a cleaner-running engine with high power density.
90° V-Twin
- Engineered with a naturally balanced 90-degree V-twin layout that cancels out primary vibrations, providing a smooth power delivery that reduces wear on both the engine and the driven equipment.
Magneto Spark Ignition
-
Equipped with a heavy-duty magneto-style ignition system, providing a consistent, high-voltage spark that remains independent of the battery once the engine is running, ensuring dependable ignition across the entire RPM range.
Compact Electronic Control Unit
-
Managed by a space-saving Electronic Control Unit (ECU), which acts as the engine’s central brain, processing real-time data to optimize fuel mapping and performance based on operating conditions.
Choke-Free Operation
- Features an automated starting sequence that eliminates the need for a manual choke; the digital fuel system automatically adjusts the air-fuel mixture for effortless, "turn-key" ignition.
Electronic Cold Operation Enrichment
-
Utilizes intelligent cold-start enrichment, a feature that detects low engine temperatures and automatically adjusts the fuel flow to ensure a stable idle and quick engine warm-up during freezing weather.
Electronic Altitude Compensation
-
Includes integrated sensors for altitude compensation, which automatically recalibrate the fuel delivery based on changes in atmospheric pressure, maintaining peak 31 HP performance from sea level to high elevations.
Water Temperature Switch
-
Equipped with a safety-critical water temperature switch, designed to monitor coolant levels and protect the engine by providing an alert or shutdown signal if temperatures exceed safe operating limits.
High Pressure Electric Fuel Pump
- Driven by a high-pressure electric fuel pump, engineered to maintain the constant and stable fuel velocity required for the DFI system to function flawlessly under maximum workload.
