Specifications3MODEL MT 20.0 HP MT 25.0 HPENGINEManufacturer/Model Kohler CH20, 2 Cyl.,Gasoline (Air Cooled)Kohler CH25, 2 Cyl.,Gasoline (Air Cooled)Displacement 38.1 cu. in. (624 cc) 44.0 cu. in. (725 cc)HP (@ 3600 RPM) 20.0 25.0Max. RPM (No Load) 3750 3750Governed RPM 3600 3600Max. Torque [ft-lb (N⋅m) @ RPM] 32 (43.4) @ 2500 39.5 (53.6) @ 2400Idle RPM 1200 ± 75 1200 ± 75Spark Plug Type Champion RC12YC Champion RC12YCSpark Plug Gap .030 in. (.76 mm) .030 in. (.76 mm)Crankcase Capacity 2.1 qts (2.0 liters) 2.1 qts (2.0 liters)Crankcase Lubricant API SF, SG, or SH Grade OilOnly with 10W-30 Viscosityabove 0° F (-18° C), or 5W-20or 5W-30 Viscosity below 32° F(0° C)API SF, SG, or SH Grade OilOnly with 10W-30 Viscosityabove 0° F (-18° C), or 5W-20or 5W-30 Viscosity below 32° F(0° C)Fuel Tank Capacity 4.3 Gallons (16.3 liters) 4.3 Gallons (16.3 liters)Fuel Regular Grade UnleadedGasoline (87 Octane)Regular Grade UnleadedGasoline (87 Octane)Cooling System Capacity Air Cooled Air CooledELECTRICAL SYSTEMBattery 12 Volt, 35AH, 295 CCA 12 Volt, 35AH, 295 CCACharging System Flywheel Alternator Flywheel AlternatorCharging Output 15 Amp DC (Regulated) 15 Amp DC (Regulated)System Polarity Negative Ground Negative GroundIgnition Electronic CapacitiveDischargeElectronic CapacitiveDischargeStarter 12 Volt Electric Ring-GearType, Solenoid Shift12 Volt Electric Ring-GearType, Solenoid ShiftInterlock Switch Ignition Lockout by SeatSwitch, Transmission Neutraland Blade ClutchIgnition Lockout by SeatSwitch, Transmission Neutraland Blade ClutchCircuit Breaker Manual Reset (30A) Manual Reset (30A)TRANSMISSIONManufacturer/Model Dual Hydrostatic, EatonModel 7, Each WheelIndependently DrivenDual Hydrostatic, EatonModel 7, Each WheelIndependently DrivenSteering Hand Lever Control /Individual WheelHand Lever Control /Individual WheelForward Speed Control Precision Friction Lock Lever,Cruise Control, withNeutral-Park PositionPrecision Friction Lock Lever,Cruise Control, withNeutral-Park Position