Kawasaki FX850V-(D)S49-S 29.5 HP Engine 850 Series
Power and precision team up to tackle the toughest jobs in the V-twin 4-cycle Kawasaki FX850V engine. With serious torque on tap, this engine features a heavy-duty shift-type starter and twin-barrel, internally vented carburetor with fuel shut-off solenoid. Plus, cast-iron cylinder liners and a metal engine cover with integrated clean-out ports contribute to trusted durability and reliable longevity.
Each image of the engine represents the series itself and not the individual engine.
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.
Overhead v-valve
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The Kawasaki FX850V-(D)S49-S is engineered with high-efficiency overhead valve (OHV) technology, a design that places the intake and exhaust valves directly above the combustion chamber. This vertical orientation creates a more direct and streamlined path for the air-fuel mixture, allowing the 29.5 HP engine to "breathe" more effectively than traditional side-valve designs
90° V-twin
- The Kawasaki FX850V-(D)S49-S is engineered with a 90-degree V-twin cylinder configuration, a premium architecture designed to achieve near-perfect mechanical balance. By positioning the cylinders at a precise right angle, the engine naturally neutralizes primary vibrations, resulting in a 29.5 HP output that feels remarkably smooth and controlled under load.
Pressurized lubrication system
- The Kawasaki FX850V-(D)S49-S features a high-performance pressurized lubrication system, an automotive-grade oiling setup designed to protect the engine’s internal vitals under extreme stress. A high-capacity pump forces a continuous, regulated stream of oil to the main bearings, crankshaft, and overhead valves, ensuring a durable protective film remains between all moving parts.
Electronic spark ignition
- The Kawasaki FX850V-(D)S49-S utilizes a high-energy electronic spark ignition system, a solid-state technology designed for maintenance-free operation and pinpoint timing. By generating a powerful, consistent spark at the optimal moment in the combustion cycle, this system ensures that the 29.5 HP V-twin fires up instantly and runs with maximum thermal efficiency.
Automatic compression release
- The Kawasaki FX850V-(D)S49-S features an automatic compression release (ACR) system, a mechanical advantage designed to make every start effortless. During the initial cranking phase, the ACR momentarily reduces the pressure within the cylinders, allowing the starter motor to spin the 29.5 HP V-twin over with significantly less resistance.
High efficiency oil cooler
- The Kawasaki FX850V-(D)S49-S is equipped with an advanced high-efficiency oil cooler, a critical component for maintaining peak performance during long, grueling commercial shifts. This specialized heat exchanger actively dissipates thermal energy from the engine oil, ensuring the lubricant maintains its vital viscosity and protective properties even when the 29.5 HP V-twin is operating under heavy load in extreme ambient temperatures.
Rotating metal grass chopper screen
- The Kawasaki FX850V-(D)S49-S features a rotating metal grass chopper screen, an active debris-management system built for the harshest commercial environments. As the engine runs, this heavy-duty metal screen spins at high speeds, using its integrated "chopping" action to physically shred grass clippings, leaves, and organic debris before they can enter the engine's cooling path.
Multi-Stage canister air filter
- The Kawasaki FX850V-(D)S49-S utilizes a professional-grade multi-stage canister air filtration system, specifically engineered to safeguard the engine in high-debris and "dust-bowl" conditions. This heavy-duty setup employs a dual-element design: a high-capacity primary filter traps the majority of airborne particles, while a secondary inner safety element provides a final line of defense against microscopic contaminants.
Cast-iron cylinder liners
- The Kawasaki FX850V-(D)S49-S is built with industrial-grade cast-iron cylinder liners, a premium structural feature designed to withstand the high-stress environment of commercial operation. These rugged sleeves provide a much harder and more heat-resistant wear surface than standard aluminum bores, effectively protecting the 29.5 HP engine against internal scuffing and friction.
Metal engine cover with integrated clean out ports
- The Kawasaki FX850V-(D)S49-S is encased in a high-strength metal engine cover with integrated clean-out ports, a rugged alternative to standard plastic shrouding. This heavy-duty steel enclosure is built to survive the vibrations and physical impacts of a commercial job site while playing a pivotal role in the engine's advanced thermal management.
Heavy duty shift-type starter
- The Kawasaki FX850V-(D)S49-S is equipped with a heavy-duty shift-type starter, an industrial-grade ignition component built to handle the rigorous demands of professional use. Unlike standard starters, this "shift-type" system physically meshes the starter pinion with the flywheel gear before the motor begins to rotate, ensuring a positive, high-torque engagement that eliminates gear slipping and reduces mechanical impact.
