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Section 3
SPECIFICATIONS

ENGINE3.1

General Type ................................................................................................Heavy Duty Industrial/Commercial Gasoline
Model:
Scag Model STT52V-27CH, STT61V-27CH .......................................................................Kohler Command CH740S
Scag Model STT61V-27KA ............................................................................................................Kawasaki FD750D
Scag Model STT61V-29DFI-SS, STT-29DFI-SS ............................................................................ Kawasaki FD791D
Scag Model STT61V-35BV-SS, STT-35BV ...........................................................................Briggs & Stratton 613177
Horsepower @ 3800 RPM:
Scag Model STT52V-27CH, STT61V-27CH ...................................................27HP (Kohler Spec. #PS-CH740-3114)
Scag Model STT61V-27KA ..........................................................................27HP (Kawasaki Spec. #FD750D-CS08)
Scag Model STT61V-29DFI-SS, STT-29DFI-SS ..........................................29HP (Kawasaki Spec. #FD791D-CS04)
Scag Model STT61V-35BV-SS, STT-35BV-SS ........................................35HP (Briggs & Stratton 613177-11454-E1)
Displacement:
Kohler CH740S................................................................................................................................................... 725cc
Kawasaki FD750D and FD791D ........................................................................................................................745cc
Briggs & Stratton ................................................................................................................................................993cc
Type:
Kohler ...................................................................................4-Cycle, Air-Cooled, Naturally Aspirated Gasoline, OHV
Kawasaki (FD750D) .............................................................4-Cycle, Air-Cooled, Naturally Aspirated Gasoline, OHV
Kawasaki (FD791D) .....................................................4-Cycle, Liquid-Cooled, Digital Fuel Injection Gasoline, OHV
Briggs & Stratton ............................................................4-Cycle, Liquid-Cooled, Naturally Aspirated Gasoline, OHV
Cylinders ..................................................................................................................................... 2 with Cast Iron Sleeves
Governor ........................................................................Mechanical Type with Variable Speed Control Set At 3800 RPM
Idle Speed:
Kohler ..........................................................................................................................................................1400 RPM
Kawasaki .....................................................................................................................................................1400 RPM
Briggs & Stratton .........................................................................................................................................1750 RPM
Carburation:
Kohler ..........................................................Fixed Jet Carburetor with Smart-Choke™ and Fuel Shutdown Solenoid
Kawasaki (FD750D) ...................................................................................................Fixed Jet Downdraft Carburetor
Kawasaki (FD791D) .....................................................................................................................Digital Fuel Injection
Briggs & Stratton ..........................................................................................................Fixed Jet Sidedraft Carburetor
Fuel Pump:
Kohler ....................................................................................................................Mechanical with In-Line Fuel Filter
Kawasaki ..............................................................................................High Pressure Electric with In-Line Fuel Filter
Briggs & Stratton ...............................................................................................Vaccum Pulse with In-Line Fuel Filter
Fuel ...................................................................................... Non-Leaded Gasoline with a Minimum Octane Rating of 87
Oil Pump ...........................................................................................................................Full Pressure w/Full-Flow Filter
Starter ........................................................................................................................ Electric Starting with Solenoid Shift
Belts .................................................................................................................Kevlar cord. Self-adjusting, Self-tightening

ELECTRICAL3.1

Battery ....................................................................................................................................................................12 Volt
Charging System ...............................................................................................................................................Alternator
Charging Output:
Kohler ..................................................................................................................................................12 Volt, 15 Amp
Kawasaki .............................................................................................................................................12 Volt, 20 Amp
Briggs & Stratton .................................................................................................................................12 Volt, 20 Amp
System Polarity .......................................................................................................................................Negative Ground
Interlock Switches ....................................................... Seat, Neutral Control, Mower Engagement (BBC), Parking Brake
Instrument Panel ......................................................Ammeter, Key Switch, Throttle Lever, Manual Choke, BBC Switch,
Fuses and Safety Start module, Temp. Gauge (KA), Check Engine Indicator (DFI)
Fuses ........................................................................................................................................................ Two (2) 20 Amp