Honda Engines GX120

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Manufacturer
Honda Engines
Model
GX120

Overview

Description

Quality and performance come standard.



Honda's GX series engines are legendary for superior reliability and performance. And there's no doubt about it: the GX120 lives up to the legend. Lower noise levels, lower vibration, and lower emissions - without sacrificing power output or performance.

Common Applications
  • Commercial lawn and garden equipment
  • Tillers / cultivators
  • Generators
  • Construction / industrial equipment
  • Agricultural equipment
  • Water pumps
Fuel Efficient, High Output Operation
  • Precision camshaft design offers precise valve timing and optimal valve overlap for better fuel efficency
  • OHV design for increased efficiency and optimal power transfer
  • High compression ratio for better fuel efficiency
Smooth Performance
  • Precision engineered components result in lower vibration
  • Ball bearing supported crankshaft for greater stability
Exceptionally Quiet
  • Even quieter than previous model!
  • Large capacity, multi-chamber exhaust system
  • Reduced mechanical noise due to light weight, noise-reducing materials
  • Forged steel crankshaft and rigid crankcase
  • Helical cut gears
  • Sophisticated air intake system
Proven Reliability
  • Oil Alert
  • New carburetor chamber coating and carburetor filter help to protect against fuel impurities
  • Cast iron cylinder sleeve
  • Dual element air cleaner
  • High quality materials, fit, and finish
  • Fuel Valve
  • 3-Year Limited Warranty
Easy to Use and Maintain
  • Simple throttle control
  • Large fuel tanks
  • Large automotive type fuel cap
  • Dual oil drains and fill
  • Easily accessible spark plug
  • Easy, convenient, heavy duty control box
Easy Starting
  • Ergonomic, easy to grip recoil rope design
  • Heavy duty recoil starter
  • Automatic mechanical de-compression system
Emissions Compliant
  • CARB and EPA certified
  • Lower emissions, same power output!
  • No catalyst necessary
Available Options
  • Spark arrester available
  • Gear reduction options
Specifications
  • Engine Type: Air-cooled 4-stroke OHV
  • Bore x Stroke: 60 X 42 mm
  • Net Power Output*: 3.5 HP (2.6 kW) @ 3,600 rpm
  • Displacement: 118 cm3
  • Net Torque: 5.4 lb-ft (7.3 Nm) @ 2,500 rpm
  • PTO Shaft Rotation: Counterclockwise (from PTO shaft side)
  • Compression Ratio: 8.5:1
  • Lamp/Charge coil options: 25W, 50W
  • Carburetor: Butterfly
  • Starting System: Recoil
  • Ignition System: Transistorized magneto
  • Lubrication System: Splash
  • Governor System: Mechanical
  • Air Cleaner: Dual Element
  • Oil Capacity: 0.59 US qt. (0.56 L)
  • Fuel Tank Capacity: 2.1 U.S. qts (2.0 liters)
  • Fuel: Unleaded 86 octane or higher
  • Dry Weight: 29 lbs. (13.0 kg)
Dimensions
  • Length (min): 11.7" (297 mm)
  • Width (min): 13.6" (346 mm)
  • Height (min): 13.0" (329 mm)
PTO
  • L type: Reduction type PTO
  • Q type: Straight shaft
  • S type: Straight shaft (metric)
  • T type: Straight shaft
  • AR type: Rammer

Specs

Engine

Engine Type
Air-cooled 4-stroke OHV
Bore x Stroke
60 x 42 mm
Displacement
118 cm3
Compression Ratio
8.5:1
Horsepower
3.5 hp (2.6 kW) @ 3,600 rpm
Torque
5.4 lb.-ft (7.3 Nm) @ 2,500 rpm
Fuel Capacity
2.1 U.S. qt. (2.0 L)
Starting System
Recoil

Dimensions

Length
11.7 in. (297 mm)
Width
13.6 in. (346 mm)
Height
13.0 in. (329 mm)
Weight
29 lb.. (13.0 kg)

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