Cub Cadet 1650

The Cub Cadet 1650 is a garden tractor model from the Quietline series, manufactured from 1974 to 1980 by Cub Cadet (a part of International Harvester) in Louisville, Kentucky, USA. It was available in a two-wheel drive (2WD) version.

The Cub Cadet 1650 is equipped with a 588 cc (35.9 cu·in) single-cylinder gasoline engine with 95.3 mm (3.75 in) of the cylinder bore and 82.6 mm (3.25 in) of the piston stroke, and a hydrostatic transmission with infinite forward and reverse gears.

The Cub Cadet 1650 garden tractor features:

• The Kohler K341AQS gasoline engine which produces 16.2 PS (11.9 kW; 16.0 HP) at 3,400 rpm of horsepower
• Manual steering
• Dry disc or wet disc brakes
• Open operator station
• Sleeve hitch (optional)
• Independent front PTO with electric clutch and 3,400 rpm

General specifications

General Specifications
Model	Cub Cadet 1650
Tractor type	Garden tractor
Production years	1974-1980
Factory	Louisville, Kentucky, USA
Dimensions and weight
Length	1,750 mm (68.9 in)
Width	990 mm (39 in)
Height	1,040 mm (40.9 in)
Wheel base	1,110 mm (43.7 in)
Ground clearance	150 mm (5.9 in)
Weight	312 kg (688 lbs)
Fuel capacity
Fuel tank capacity	7.5 liters (2 US gal.; 1.6 Imp. gal)

Engine

Engine Specifications
Engine model	Kohler K341QS
Engine type	4-stroke, L-head (side valve), single-cylinder
Displacement	588 cm3, (35.9 cu·in)
Bore and stroke	95.3 mm X 82.6 mm (3.75 in X 3.25 in)
Max. horsepower	16.2 PS (11.9 kW; 16.0 HP) at 3,600 rpm
Cooling system	Forced air
Lubricating system	Splash type
Fuel system	Carburetor
Starting system	Electirc starter
Compression pressure
Normal:	7.7-8.4 kg/cm2 (7.6-8.3 bar, 110-120 psi) / 1,000 rpm
Valve clearance
Intake valve clearance:	0.20-0.25 mm (0.0079-0.0098 in)
Exhaust valve clearance:	0.43-0.48 mm (0.0169-0.0189 in)
Oil system
Lubrication system:	Splash type
Oil type:	API SF or SG
Recommended oil:	Summer: SAE 30W Winter: SAE 5W-20, 5W-30
Oil capacity:	1.4 L (1.5 US. qt, 1.2 Imp. qt.)
Ignition system
Spark plug:	Champion RH10
Spark plug gap:	0.65 mm (0.0256 in)
Spark plug torque:	27 N·m (2.8 kg·m, 19.9 ft·lb)

Transmission and chassis

Chassis, steering and brakes
Chassis	4×2 2WD
Steering type	Manual
Brakes	Dry disc or wet disc
Transmission
Transmission manufacturer or model	–
Transmission type	Hydrostatic
Gears	Infinite forward and reverse
Speed	Forward: 12.9 kmh (8 mph) Reverse: 6.4 kmh (4 mph)
Transmission oil capacity	6.6 L (1.7 US. gal, 1.5 Imp. gal.)

Tires

Tires
Front tires	Lawn/turf: 16×6.50-8
Rear tires	Lawn/turf: 23×8.50-12

PTO (Power take-off shaft)

PTO
Front PTO type	Independent with electric clutch
Front PTO speed	3,400 rpm

Electrical system

Electrical system
Ground	Negative
Charging system	Flywheel alternator
Charging amps	15A
Battery	12V

Serial numbers

Cub Cadet 1650 serial numbers
1974	530000
1975	536073
1976	572840
1977	602118
1978	621744
1979	643507
1980	667400

Attachments

Cub Cadet 38A: 38″ mid-mount mower deck with 3-blade and electric lift
Cutting width	960 mm (38 in)
Cut height	30-110 mm (1.5-4.5 in)
Cub Cadet 44A: 44″ mid-mount mower deck with 3-blade and electric lift
Cutting width	1,110 mm (44 in)
Cut height	20-100 mm (1-4 in)
Cub Cadet 50A: 50″ mid-mount mower deck with 3-blade and electric lift
Width	1,270 mm (50 in)
Cut height	20-100 mm (1-4 in)
Cub Cadet QA-36A: 36″ front-mount snow blower with manual lift
Cleaning width	910 mm (36 in)
Cub Cadet QA-42A: 42″ front-mount snow blower with manual lift
Cleaning width	1,060 mm (42 in)