Description
Meet the world's lightest OHC engine.
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
- Construction / industrial equipment
- Agricultural 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
- Lighter, more rigid valve train
- Efficient port configuration and large diameter valves maximize power output
- 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
- Diaphragm carburetor
- Integrated fuel system protection
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
- 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)
