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Massey Ferguson MF 85 Lawn Tractor and Mower Specifications

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Complete specifications for the Massey Ferguson MF 85 lawn tractor, transcribed from the factory operator's manual and assembly instructions (Form No. 1448 405 M2, dated 1/78). The MF 85 is powered by a Briggs and Stratton 190707 single-cylinder engine of 19.44 cu. in., rated at 8 hp at 3600 rpm (SAE J-607), driving through a Tecumseh 800 transmission giving 5 forward speeds and 1 reverse.

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Engine

Model Briggs and Stratton 190707
Cylinders 1
Horsepower 8 hp at 3600 rpm (per SAE J-607)
Displacement 19.44 cu. ins.
Bore 3 inches
Stroke 2-3/4 inches
Fuel Tank Capacity 4 U.S. qts.
Crankcase Oil Capacity 36 fl. ozs.
Spark Plug Gap 0.030 inch
Idle Speed 1650-1850 rpm
Governed Speed, no-load 3400-3600 rpm
Alternator 3 ampere

Transmission and Ground Speeds

Model Tecumseh 800; 5 speeds forward, 1 speed reverse
Transmission Drive "V" belt drive
Transmission Clutch "V" belt
Service and Parking Brake Caliper disc
Mower Drive "V" belt pulley
Mower Lift Manual foot pedal
Gear Speed
1st 1.7 mph
2nd 2.6 mph
3rd 3.9 mph
4th 5.0 mph
5th 5.9 mph
Reverse 2.8 mph

Steering

Wheel Size 13 inch diameter
Gear Rack and pinion
Turning Radius, per SAE J695 6 feet
Hand Wheel Turns, stop to stop 1-1/2 turns

Wheels and Tires

Front 15 x 6.00-6, Softrac Terra
Rear 18 x 8.50-8, Softrac Terra

Chassis Dimensions

Wheel Base 41.5 inches
Front Tread 29 inches
Rear Tread 27 inches
Overall Height 37 inches
Width 36 inches
Length 60 inches
Ground Clearance 6 inches
Drawbar Height 8.375 inches

Weight

Without Mower 375 lbs.
With Mower 480 lbs.

Notes:
All figures are given in U.S. units in this manual, with no Imperial column, so no conversion check applies.
Only the Tractor Specifications page was available for this rebuild; the manual's separate Mower Specifications page was not captured, so mower deck figures are not reproduced here.
All specifications transcribed from the Massey-Ferguson MF 85 operator's manual, Form No. 1448 405 M2, dated 1/78, originally published by Massey-Ferguson. Verify against your tractor's serial number before ordering parts.

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Manual code: 1448 405 M2

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