Honda Engines GX120

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Availability
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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.

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

Specs

Engine

Engine Type
Air-cooled 4-stroke OHV
Bore x Stroke
60 X 42 mm
Displacement
118 cm3
Compression Ratio
8.5:1
Torque
(Net) 5.4 lb-ft (7.3 Nm) @ 2,500 rpm
Fuel Capacity
2.1 U.S. qts (2.0 liters)
Starting System
Recoil

Dimensions

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

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