Honda Releases the New GX35 -A 360-degree-inclinable, Ultra-Small 4-Stroke Engine

August 26, 2003, Japan

Power Products

August 26, 2003—Honda Motor Co., Ltd. has announced the release of the new GX35, a 360-degree-inclinable, 4-stroke engine (35.8cc displacement) that will serve as a power source for trimmers and a variety of other handheld power equipment. Honda will also be supplying the engine to other power equipment manufacturers on an OEM basis.

The GX35 features the same lightweight and compact design, 360-degree-inclinability, and outstanding environmental performance as the 25cc-displacement GX25 that debuted in 2002 as the ideal engine for handheld operation, along with powerful output and tenacious torque for improved work efficiency.

The engine’s oil-immersed timing belt OHC configuration makes it possible to incorporate the valve train into the oil reservoir for substantial weight and volume savings. Honda’s original rotary slinger pumping lubrication system ensures full oil lubrication no matter what the engine angle, allowing it to be continuously operated or stored in any position.

The GX35 offers superb environmental performance, achieving a top-class*1ranking under US EPA (Environmental Protection Agency) Phase 2 regulations—the most stringent in the world—while achieving a power-to-weight ratio on par with that of a 2-stroke engine. It also delivers an outstanding balance of all-round performance combined with low noise and low vibration, for efficient, carefree operation. The GX35 also clears Japanese domestic Phase 2*2 voluntary emissions regulations for 2011, and is expected to qualify for Stage 2*3 certification under EU emissions regulations well ahead of the 2007 deadline.

  • *1EPA: Class I-A (under 65cc displacement) and Class IV (20cc-50cc displacement)
  • *2Japan Land Engine Manufacturers Association (LEMA) voluntary exhaust emissions regulations for small utility gasoline engines
  • *3EU Class SH2 (20cc-50cc displacement)
GX35 360-degree-inclinable 4-stroke engine

GX35 360-degree-inclinable 4-stroke engine

Annual projected sales, worldwide: 70,000 units
Suggested list price (consumption tax not included): ¥38,000

Main Features of the GX35

360-degree-inclinable

  • Employs Honda’s original rotary slinger pumping lubrication system, which ensures full oil lubrication no matter what the engine angle, allowing the engine to be continuously operated or stored in any position.

Tenacious power output

  • Specially selected valve timing settings deliver powerful output over a broad range of operating speeds. Ample low-speed torque ensures tenacious operating performance even when the engine speed falls under high-load conditions.

Smooth starting and superb acceleration

  • Mechanical decompression results in a major reduction in starter rope pull weight, combining easy, efficient operation with the outstanding startup reliability that 4-stroke engines are known for.
  • An accelerator pump-equipped carburetor and ample low-to-midrange torque result in nimble acceleration immediately after startup, on par with that of a 2-stroke.

High environmental performance

  • A Honda e-SPEC engine that achieves top-class*1ranking in American EPA (Environmental Protection Agency) Phase 2 regulations and CARB (California Air Review Board) Tier II regulations—the most stringent in the world.
  • The GX35 clears Japanese domestic Phase 2*2 voluntary emissions regulations established by the Japan Land Engine Manufacturers Association for 2011, and is also expected to receive Stage 2*3 certification under EU emissions regulations well ahead of the 2007 deadline. (EU Stage 1 emissions regulations first came into effect in 2004.) Starting with the GX35, Honda intends to earn Stage 2 certification for its entire lineup of engines sold in Europe well before the regulations come into effect.
  • *1EPA: Class I-A; CARB: under 65cc displacement
  • *2Japan Land Engine Manufacturers Association (LEMA) voluntary exhaust emissions regulations for small utility gasoline engines
  • *3EU Class SH2 (20cc-50cc displacement)
  • Top-of-class fuel economy and low oil consumption.

Maintenance

  • The engine is designed to allow the cover to be removed by loosening a single bolt. The air cleaner cover can be removed and replaced with just one hand.

Design

  • Built tough, with a full-cover construction that reduces snagging on branches or other objects during heavy operation. A side guard has also been added to the lower part of the muffler to handle rugged use.
  • Designed with a low center of gravity and a shape that doesn’t catch on the operator’s elbow, for greater operability and maneuverability.

Specifications

Model Name GX35
Type e-SPEC air-cooled 4-stroke single-cylinder OHC
Displacement(cm3) 35.8
L x W x H (mm) 198x234x240
Outfitted Weight (kg) 3.88
Dry Weight(kg) 3.33
No. of Cylinders / Bore x Stroke (mm) 1/39×30
Maximum Output/Engine Speed (kW[PS]/rpm) 1.2(1.6)/7,000
Maximum Torque (N-m[kg-m]/rpm) 1.9(0.19)/5,500
Direction of Rotation Counterclockwise (viewed from output shaft side)
Fuel Type Automotive-grade unleaded gasoline
Fuel Tank Capacity (L) 0.65
Fuel Consumption (g/kW-h [g/PS-h]) 360(265)
Oil Reservoir Capacity(L) 0.1
Carburetor Diaphragm type (overflow return)
Ignition Transistorized magneto
Spark Plug NGK CM5H/CMR5H
Starter Recoil type