Specifications, Service and Repair of Farm and Lawn Tractors

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Ford YT12.5 Technical Specs

General Information

Tractor Model .................... Ford YT-12.5
Tractor Type .................... Lawn tractor
Manufacture Years .................... 1987-1990
Series .................... YT
Fuel Type .................... Gasoline
Attachments .................... Mower Deck, Snow Blower, Blade

Ford YT12.5 Engine

Briggs Engine

Engine Model .................... Briggs and Stratton 404707
Engine Type .................... 4-cycle vertical shaft air-cooled gasoline engine
Number of Cylinders .................... 2
Displacement, cu.in (cc) .................... 40.1 (655)
Cylinder Bore, in (mm) .................... 3.44 (87.0)
Piston Stroke, in (mm) .................... 2.16 (55.0)
Rated Engine Power, hp (kW) .................... 12.5 (9.3)
Rated Engine Speed, rpm .................... 3600
Idle Speed, rpm .................... 1400
Fuel System Type .................... Carburetor
Carburetor Type .................... Float
Fuel Pump .................... Pulse type
Governor Type .................... Mechanical
Lubrication System .................... Pressure lubrication
Air Cleaner .................... Dual element with a foam pre-cleaner
Cooling System .................... Forced air
Ignition System .................... Electronic
Spark Plug Gap, in (mm) .................... 0.030 (0.762)
Intake Valve Clearance, in (mm) .................... 0.004-0.006 (0.10-0.15)
Exhaust Valve Clearance, in (mm) .................... 0.007-0.009 (0.18-0.23)
Fuel Tank Capacity, gal (L) .................... 4.0 (15.0)
Oil Capacity, qts (L) .................... 1.5 (1.4)

Kohler Engine

Engine Model .................... Kohler Command CV-12.5S
Engine Type .................... Gasoline vertical shaft four-cycle
Number of Cylinder .................... Single
Piston Displacement, cu.in (cc) .................... 24.3 (398)
Engine Bore, in (mm) .................... 3.43 (87.0)
Engine Stroke, in (mm) .................... 2.64 (67.0)
Engine Power, Hp (kW) .................... 12.5 (9.3)
Maximum Torque, Nm (ft-lb) .................... 27.8 (20.5)
Fast Idle Speed, rpm .................... 2500
Low Idle Speed, rpm .................... 1500
Compression Ratio .................... 8.5:1
Fuel System Type .................... Carburetor
Carburetor Type .................... Float Fixed Main Jet
Fuel Pump .................... Diaphragm Type Mechanical Pump
Fuel Filter .................... In-line
Governor .................... Centrifugal Mechanical Flyweight
Cooling System .................... Air Intake
Air Cleaner .................... Replaceable, high density paper element
Lubrication System Type .................... Full-Pressure
Oil Pump Type .................... Gerotor
Oil Filter .................... Full-flow
Ignition System Type .................... Electronic magneto
Spark Plug .................... Champion RC12YC
Spark Plug Gap, in (mm) .................... 0.040 (1.02)
Ignition Module Air Gap, in (mm) .................... 0.008-0.012 (0.20-0.30)
Fuel Tank Capacity, gal (L) .................... 4.0 (15.0)
Oil Capacity, qts (L) .................... 1.9 (2.0)

Electrical System

Electrical System Rating, Volts .................... 12
Starter Type .................... Electric
Number of Batteries .................... 1
Battery Voltage, Volts .................... 12
Electric Ground .................... Negative

Power Take-Off

Front PTO Operational Type .................... Independent
Front PTO Clutch .................... Electric
Front PTO Speed, rpm .................... 3600

Ford YT-12.5 Transmission

Transmission Model .................... Peerless 801
Transmission Type .................... Belt-driven gear
Gearbox Type .................... 5F/1R
Number of Forward Gears .................... 5
Number of Reverse Gears .................... 1
Oil Capacity, qts, (L) .................... 1.1 (1.0)
Maximum Forward Speed, mph (kph) .................... 5.0 (8.0)
Maximum Reverse Speed, mph (kph) .................... 1.6 (2.6)

Transmission Model .................... Peerless 920
Transmission Type .................... Belt-driven gear
Gearbox Type .................... 5F/1R
Number of Forward Gears .................... 5
Number of Reverse Gears .................... 1
Oil Capacity, qts, (L) .................... 1.1 (1.0)
Maximum Forward Speed, mph (kph) .................... 5.0 (8.0)
Maximum Reverse Speed, mph (kph) .................... 1.6 (2.6)

Wheels and Tires

Drive Wheels .................... 2WD 4x2
Steering Configuration .................... Front steer
Steering System .................... Manual
Brakes Type .................... Manual caliper
Front Tire Size .................... 15x6.00-6
Rear Tire Size .................... 22x9.00-12

Dimensions and Weight

Wheelbase, in (mm) .................... 49 (1240)
Length, in (mm) .................... 73 (1850)
Height, in (mm) .................... 39 (990)
Overall Width, in (mm) .................... 36 (910)
Ground Clearance, in (mm) .................... 8.5 (210)
Weight, lb (kg) .................... 784 (355)

Ford YT12.5 Attachments

38" Mower Deck

Mower Deck Type .................... Mid-mount, right-discharge
Number of Blades .................... 3
Cutting Width, in (mm) .................... 38 (960)
Cutting Height, in (mm) .................... 1.5-3.5 (38-90)
Lift System .................... Manual

42" Mower Deck

Mower Deck Type .................... Mid-mount, right-discharge
Number of Blades .................... 3
Cutting Width, in (mm) .................... 42 (1060)
Cutting Height, in (mm) .................... 1.5-3.5 (38-90)
Lift System .................... Manual

36" Snowblower

Snowblower Type .................... Front-mount, single-stage
Clearing Width, in (mm) .................... 36 (910)
Lift System .................... Manual/Electric

Front Blade

Blade Type .................... Front-mount
Width, in (mm) .................... 42 (106)
Lift System .................... Manual
Angle .................... Manual

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FORD TRACTORS SPECIFICATIONS

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FORD FRONT END LOADERS SPECIFICATIONS

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FORD TRACTORS TROUBLESHOOTING
1710 1900 2120 2600 3600
3930 4100 4630 5600 5640
6410 6610 6640 6710 6810
7610 7740 7810 8210 8240
8630 8830 8770 TW30 TW35