2018 Honda Engines GX25

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Availability
Brochure
Year
2018
Manufacturer
Honda Engines
Model
GX25

Overview

Description

Honda applied our superior engine technology to create the world's first 360° inclinable 4-Stroke engines. The ultra-lightweight GX25 Mini 4-Stroke efficiently delivers the kind of efficient cleaner, powerful, quiet performance that you'd expect from a larger engine - but in a very compact package.

Common Applications
  • Tillers / cultivators
  • Commercial lawn and garden equipment
  • Agricultural equipment
  • Construction / industrial equipment
  • Water pumps
Advanced Technology
  • 4-stroke - no fuel/oil mixing
  • Full 360° "any-side-up" operation - use and store in any position
  • Exclusive rotary-slinger lubrication system
  • The world's lightest OHC engine
Fuel Efficient, High Output Operation
  • Approximately half the operating cost of comparable 2-stroke engines
  • Efficient port configuration and large diameter valves maximize power output
  • Lighter, more rigid valve train
  • Carburetor equipped with accelerator pump for fast, easy acceleration
Smooth Performance
  • Precision engineered components result in lower vibration
  • Lighter piston minimizes vibration
  • Ball bearing supported crankshaft for greater stability
  • Roller bearing supported connecting rod
Exceptionally Quiet
  • Belt-driven OHC design reduces mechanical noise
  • Large capacity, multi-chamber exhaust system
  • Sophisticated air intake system
Proven Reliability
  • High quality materials, fit, and finish
  • Lifetime timing belt design
  • Integrated fuel system protection
  • Diaphragm carburetor
Easy to Use and Maintain
  • Easily accessible spark plug
  • Easy to drain and re-fill oil
  • No mixing of gas and oil
Easy Starting
  • Exhaust decompression system
  • Unique low inertia design
Emissions Compliant
  • CARB and EPA certified
  • No catalyst necessary
Available Options
  • Special designs for horizontal and vertical applications available
Specifications
  • Engine Type: Air-cooled 4-stroke OHC
  • Bore x Stroke: 35 mm x 26 mm
  • Displacement: 25 cm3
  • Net Power Output*: 1.0 HP (.72 kW) @ 7,000 rpm
  • Net Torque: 0.74 lb-ft (1.0 Nm) @ 5,000 rpm
  • PTO Shaft Rotation: Counterclockwise (from PTO shaft side)
  • Compression Ratio: 8.0:1
  • Carburetor: Diaphragm-type (overflow return)
  • Ignition System: Transistorized magneto
  • Starting System: Recoil
  • Lubrication System: Crankcase pressure-driven
  • Governor System: NA
  • Air cleaner: Semi-dry
  • Oil Capacity: 2.7 US oz (80cc)
  • Fuel: Unleaded 86 octane or higher
  • Fuel Tank Capacity: .61 U.S. qt (0.58 liter)
  • Dry Weight: 6.8 lb (2.7 kg)
Dimensions
  • Length (min): 7.6" (192mm)
  • Width (min): 8.7" (221mm)
  • Height (min): 9.1" (230mm)
NOTES:
*The SAE J1349 standard measures net horsepower with the manufacturer's production muffler and air cleaner in place. Net horsepower more closely correlates with the power the operator will experience when using a Honda engine powered product. The power rating of the engines indicated in this document measures the net power output at 3600 rpm (7000 rpm for model GXH50, GXV50, GX25 and GX35) and net torque at 2500 rpm, as tested on a production engine. Mass production engines may vary from this value. Actual power output for the engine installed in the final machine will vary depending on numerous factors, including the operation speed of the engine in application, environmental conditions, maintenance and other variables.

Specs

Engine

Engine Type
Air-cooled 4-stroke OHC
Bore x Stroke
35 mm x 26 mm
Displacement
25 cm3
Compression Ratio
8.0:1
Horsepower
1.0 hp (.72 kW) @ 7,000 rpm
Torque
0.74 lb.-ft (1.0 Nm) @ 5,000 rpm
Fuel Capacity
.61 U.S. qt. (0.58 L)
Starting System
Recoil

Dimensions

Length
7.6 in. (192mm)
Width
8.7 in. (221mm)
Height
9.1 in. (230mm)
Weight
6.8 lb. (2.7 kg)

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