🏷️ Basic Information Identification Make: Kawasaki Model: FH451V, FH500V, FH531V, FH541V, FH580V, FH601V, FH641V, FH661V, FH680V, FH721V Engine Type: 4-Cycle Gasoline Engine Engine Configuration: Vertical Shaft, Overhead Valve, Forced Air Cooled 📋 Manual Details Document Information Manual Type: Workshop Service Repair Manual Language: English Page Count: 181 Format: PDF Download Sections Included: General Information, Periodic Maintenance, Fuel System, Cooling System, Engine Top End, Lubrication System, Camshaft Crankshaft, Starter System, Electrical System, Troubleshooting ⚙️ Engine Specifications General Bore Stroke Range: Specific to each model (e.g., FH451V: 74 x 71.5 mm, FH721V: 82 x 71.5 mm) Displacement Range: Specific to each model (e.g., FH451V: 449cc, FH721V: 726cc) Compression Ratio Range: Typically around 8.0:1 to 8.5:1 Performance Power Output Range: Specific to each model (e.g., FH451V: 15 HP, FH721V: 23.5 HP) Torque Range: Specific to each model 🔧 Maintenance Lubrication Recommended Oil Type: Kawasaki Genuine Engine Oil or equivalent SAE 10W-30, 10W-40, or 20W-50 (depending on ambient temperature) Oil Capacity Range: Typically 1.6 L to 2.2 L (without filter change) Periodic Checks Spark Plug Gap: 0.024-0.028 in (0.6-0.7 mm) Valve Lash Clearance: Intake: 0.10-0.15 mm, Exhaust: 0.15-0.20 mm (Cold) 📄 Engine Features Ignition Ignition System: Digital Electronic Ignition Fuel System Fuel Delivery: Carburetor (specific type varies by model) Cooling System Cooling Method: Forced Air Cooling Starting System Starting Method: Electric Starter Exhaust Muffler Type: Standard Spark Arrestor Muffler Flywheel Flywheel Brake: Yes Governor Governor Type: Mechanical Centrifugal Governor