Honda HA4120

Honda HA4120The Honda HA4120 is a lawn tractor model manufactured from 1998 to 2001 by John Deere for distributor Honda in Horicon, Wisconsin, USA. It was available in two-wheel drive (2WD) version.

The Honda HA4120 is equipped with a 614 сс (37.5 cu·in) two-cylinder gasoline engine with 77.0 mm (3.03 in) of the cylinder bore and 66.0 mm (2.6 in) of the piston stroke, and a hydrostatic transmission with infinite forward and reverse gears.

The Honda HA4120 lawn tractor features:

  • The Honda GXV610 gasoline engine which produces 20.3 PS (14.9 kW; 20.0 HP) at 3,600 rpm of horsepower
  • Open operator station
  • Hydrostatic transmission
  • 9.5 liters (2.5 US gal.; 2.1 Imp. gal) fuel tank
  • 15×6.00-6 front tires and 20×10.00-8 rear tires

General specifications

General Specifications
Model Honda HA4120
Tractor type Lawn tractor
Production years 1998-2001
Factory Horicon, Wisconsin, USA
Dimensions and weight
Length 1,730 mm (68.1 in)
Width 1,500 mm (59.1 in)
Height 1,030 mm (40.6 in)
Wheel base 1,160 mm (45.7 in)
Weight 253 kg (558 lbs)
Fuel capacity
Fuel tank capacity 9.5 liters (2.5 US gal.; 2.1 Imp. gal)

Engine

Engine
Engine model Honda GXV620
Displacement 614 cm3 (37.5 cu-in)
Bore x stroke 77.0 X 66.0 mm (3.0 x 2.6 in)
Max. horsepower 20.3 PS (14.9 KW; 20.0 HP) at 3,600 rpm
Max. torque 44.1 Nm (4.5 kg·m; 32.55 ft·lb) at 2,500 rpm
Carburetor Horizontal type, butterfly valve
Cooling system Forced-air
Ignition system Transistorized magneto ignition
Lubricating system Forced lubrication
Starting system Electric starter
Stoping system Ignition primary circuit ground
Fuel used Unleaded gasoline (octane number 86 or higher)
Valve clearance
Intake valve clearance 0.15±0.02 mm (0.006±0.001 in)
Exhaust valve clearance 0.20±0.02 mm (0.008±0.001 in)
Oil system
Oil type Honda 4-stroke or an equivalent (SJ or later)
Recommended oil SAE 10W-30
Oil capacity With oil filter: 2.2 L (2.3 US. qt, 1.9 Imp. qt.)
Without oil filter: 1.70 L (1.8 US. qt, 1.5 Imp. qt.)
Oil change interval Every 6 month or 100 Hrs.
Ignition system
Ignition timing 20° B.T.D.C.
Spark plug NGK: ZGR5A
DENSO: J16CR-U
Spark plug gap 0.7-0.8 mm (0.028-0.031 in)
Primary ignition coil resistance 0.8-1.0 Ω
Secondary ignition coil resistance 7.0-8.6 kΩ
Ignition coil air gap 0.4 ± 0.2 (0.016 ± 0.008)
Starter motor
Brush length 10.0 mm (0.43 in)

Transmission and chassis

Chassis, steering and brakes
Chassis 4×2 2WD
Steering type Manual
Brakes
Transmission
Transmission manufacturer or model Tuff Torq K61
Transmission type Hydrostatic
Gears Infinite forward and reverse
Speed Forward: 8.0 kmh (5 mph)
Reverse: 3.9 kmh (2.4 mph)
Transmission oil capacity 3.4 L (0.9 US. gal, 0.7 Imp. gal.)

Tires

Tires
Front tires Lawn/turf: 15×6.00-6
Rear tires Lawn/turf: 20×10.00-8

Electrical system

Electrical system
Ground Negative
Charging system
Charging amps
Battery 12V

Attachments

Mid-mount Honda 48 in (1,210 mm) mower deck with 3-blade
Cutting width 1,210 mm (48 in)
Cut height 20-100 mm (1-4 in)
Author: Sergei Wers
About: Co-founder and CEO of a multi-brand auto repair shop (engine repair, chassis repair, body repair and painting) for over 15 years. I have been developing internet sites with technical specifications for more than seven years.

ATTENTION! Dear visitors, this is an informational database of technical specifications, we are not a parts supplier or a marketplace.

We try to use official documentation and verify the published data, but errors may occur. In addition, specifications of machinery and equipment may vary depending on markets and modifications. We do not recommend the use of this data for spare parts or repairs. Use official service manuals or parts catalogs for your product.

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