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Yanmar YM122

The Yanmar YM122 is a tractor produced by Yanmar Lawn Tractors. It is equipped with a 534 cc 32.64 ci engine. The listed engine power is Diesel (listed): 12 hp / 8.9 kW. Transmission: 6 forward and 3 reverse. Operating weight: 829 lbs 376 kg.

Engine Power
Diesel (listed): 12 hp / 8.9 kW
Fuel & Capacities
2.6 gal 9.8 L
Transmission
6 forward and 3 reverse
Operating Weight
829 lbs 376 kg

Overview

Yanmar YM122 tractor photo
1983 - 1987 Garden tractor
Production
Manufacturer
Yanmar
Garden tractor
Original price was $5,000 in 1989
Yanmar YM122 Engine
12HP Yanmar 534cc 1-cyl diesel
Fuel tank
2.6 gal 9.8 L
Engine details ...
Yanmar YM122 Transmission
6-speed gear
Transmission details ...
Mechanical
Two-wheel drive
Manual steering
Mechanical drum brakes
Open operator station.
Hydraulics
Type
open center
Pressure
853 psi 58.8 bar
Pump flow
2 gpm 7.6 lpm
Tractor hitch
Rear Type
0
Rear lift (at ends)
375 lbs 170 kg
Rear lift (at 24"/610mm)
276 lbs 125 kg
Power Take-off (PTO)
Rear PTO
transmission
Rear PTO Type
2000
Front PTO
independent
Clutch
electric
Dimensions & Tires
Wheelbase
51.5 inches 130 cm
Weight
829 lbs 376 kg
Front tire
16x6.50-8
Rear tire
23x10.50-12
Full dimensions and tires ...
Electrical
Ground
negative
Charging system
alternator
Charging amps
15
Battery volts
12
Battery AH
47
References
YM122 references literature
Operation Manual YM142 - YM146 - YM122 - YM126 (OME122-146(1)-8306) published in 1983

Engine

Engine Detail — 534 cc / 32.64 ci Diesel

Manufacturer
Yanmar MA10-N
Fuel Type
Diesel
Configuration
1-cylinder, liquid-cooled
Displacement
534 cc 32.64 ci
Bore/Stroke
3.46x3.46 inches 88 x 88 mm
Power
12 hp 8.9 kW
Air cleaner
dry
Rated RPM
2600
Idle RPM
1400-2825
Starter volts
12
Coolant capacity
3.3 qts 3.1 L
Oil capacity
3.4 qts 3.2 L
Oil change
100 h

Transmission

Transmission — 6 forward and 3 reverse gear

Type
gear
Gears
6 forward and 3 reverse
Oil capacity
6.7 qts 6.3 L
Oil type
JDM303
Oil change
300 h
Two gears, plus reverse, in three ranges.
With 23x10.50-12 rear tires.
YM122 gear speeds
JDM303

Dimensions

Yanmar YM122 Tires
Lawn/turf front
16x6.50-8
Lawn/turf rear
23x10.50-12
Dimensions
Wheelbase
51.5 inches 130 cm
Length
75.5 inches 191 cm
Width
39.9 inches 101 cm
Height (steering wheel)
44.8 inches 113 cm
Shipping weight
829 lbs 376 kg
Ground clearance
6.6 inches 16 cm

Attachments

Attachment overview
42" mid-mount mower deck
48" mid-mount mower deck
Garden tractors are capable of using tillers, plows, or other ground-engaging attachments. TractorData does not list details of these attachments.

Photos

Yanmar YM122 tractor photo

Yanmar YM122 tractor photo

Fluids, Capacities & Working Autonomy

Standard fluid requirements, service intervals, and continuous runtime estimates for Yanmar Lawn Tractors Yanmar YM122.

Estimated Continuous Field Runtime: 4.2 hrs

Approximately 4.2 hours of continuous field operation at ~75% rated power on a full tank (2.6 gal / 9.8 L).

Estimated 75% Load Fuel Burn~0.6 gal/hr (2.4 L/hr)

Engine Crankcase Oil

SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours

Transmission & Hydraulic System

UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours

Engine Cooling System

50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours

Yanmar Lawn Tractors Yanmar YM122 Specification Unit Converter

Convert power, fluid capacities, and operating weights between metric and imperial standards for Yanmar Lawn Tractors Yanmar YM122.

Converted Equivalents:

Horsepower (HP)12 hp
Kilowatts (kW)8.9 kW
Metric Horsepower (PS / CV)12.2 PS

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