G3700

4. Fuel and Chain Oil

■FUEL

WARNING

•Gasoline is very flammable. Avoid smoking or bring- ing any flame or sparks near fuel. Make sure to stop the engine and allow it cool before refueling the unit. Select outdoor bare ground for fueling and move at least 3 m (10 ft) away from the fueling point before starting the engine.

•The Zenoah engines are lubricated by oil specially for- mulated for air-cooled 2-cycle gasoline engine use. If Zenoah oil is not available, use an anti-oxidant added quality oil expressly labeled for air-cooled 2-cycle en- gine use (JASO FC GRADE OIL or ISO EGC GRADE).

•Do not use BIA or TCW (2-stroke water-cooling type) mixed oil.

■RECOMMENDED MIXING RATIO GASOLINE 50 : OIL 1

(when using ZENOAH genuine oil)

•Exhaust emission are controlled by the fundamental engine parameters and components (eq., carburetion, ignition timing and port timing) without addition of any major hardware or the introduction of an inert material during combustion.

•These engines are certified to operate on unleaded gaso- line.

•Make sure to use gasoline with a minimum octane num- ber of 89RON (USA/Canada: 87AL).

•If you use a gasoline of a lower octane value than pre- scribed, there is a danger that the engine temperature may rise and an engine problem such as piston seizing may consequently occur.

•Unleaded gasoline is recommended to reduce the con- tamination of the air for the sake of your health and the environment.

•Poor quality gasolines or oils may damage sealing rings, fuel lines or fuel tank of the engine.

■HOW TO MIX FUEL

WARNING

Pay attention to agitation.

1.Measure out the quantities of gasoline and oil to be mixed.

2.Put some of the gasoline into a clean, approved fuel container.

3.Pour in all of the oil and agitate well.

GB-8

4.Pour in the rest of gasoline and agitate again for at least one minute. As some oils may be difficult to agitate depending on oil ingredients, sufficient agitation is nec- essary for the engine to last long. Be careful that, if the agitation is insufficient, there is an increased danger of early piston seizing due to abnormally lean mixture.

5.Put a clear indication on the outside of the container to avoid mixing up with gasoline or other containers.

6.Indicate the contents on outside of container for easy identification.

■FUELING THE UNIT

1.Untwist and remove the fuel cap. Rest the cap on a dustless place.

2.Put fuel into the fuel tank to 80% of the full capacity.

3.Fasten the fuel cap securely and wipe up any fuel spill- age around the unit.

WARNING

1.Select flat and bare ground for fueling.

2.Move at least 10 feet (3 meters) away from the fuel- ing point before starting the engine.

3.Stop the engine before refueling the unit. At that time, be sure to sufficiently agitate the mixed gaso- line in the container.

■FOR YOUR ENGINE LIFE, AVOID:

1.FUEL WITH NO OIL (RAW GASOLINE) – It will cause severe damage to the internal engine parts very quickly.

2.GASOHOL – It can cause deterioration of rubber and/ or plastic parts and disruption of engine lubrication.

3.OIL FOR 4-CYCLE ENGINE USE – It can cause spark plug fouling, exhaust port blocking, or piston ring stick- ing.

4.Mixed fuels which have been left unused for a pe- riod of one month or more may clog the carburetor and result in the engine failing to operate properly.

5.In the case of storing the product for a long period of time, clean the fuel tank after rendering it empty. Next, activate the engine and empty the carburetor of the composite fuel.

6.In the case of scrapping the used mixed oil container, scrap it only at an authorized repository site.

NOTE

As for details of quality assurance, read the description in the section Limited Warranty carefully. Moreover, nor- mal wear and change in product with no functional in- fluence are not covered by the warranty. Also, be care- ful that, if the usage in the instruction manual is not ob- served as to the mixed gasoline, etc. described therein, it may not be covered by the warranty.

■CHAIN OIL

Use motor oil SAE #10W-30 all year round or SAE #30 ~ #40 in summer and SAE #20 in winter.

NOTE

Do not use wasted or regenerated oil that can cause damage to the oil pump.

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Zenoah G3700 owner manual Fuel and Chain Oil
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G3700 specifications

The Zenoah G3700 is a powerful and reliable engine widely recognized in the world of outdoor power equipment, especially for applications in the fields of landscaping, forestry, and agriculture. Engineered with precision, this two-stroke engine is designed to deliver consistent performance, making it a preferred choice for professionals and enthusiasts alike.

One of the standout features of the Zenoah G3700 is its impressive displacement of 36.3cc, providing powerful horsepower while maintaining a lightweight design. This balance ensures that tools powered by the G3700 engine remain user-friendly and easy to handle, especially during extended periods of operation. The engine produces around 1.5 kW of power, enabling efficient cutting, trimming, and other demanding tasks with ease.

The G3700 employs advanced combustion technologies that optimize fuel efficiency while minimizing emissions. This not only enhances the engine's performance but also aligns with modern environmental standards, making it a more sustainable option for users concerned about their ecological footprint. The integration of a catalytic converter contributes significantly to reducing harmful exhaust emissions, thus promoting cleaner operation.

Additionally, the engine is equipped with a sophisticated ignition system that ensures reliable starting and smooth operation. The electronic ignition system reduces maintenance needs over time and enhances overall engine reliability. Moreover, the G3700 features a robust air filtration system that significantly improves air intake, leading to better performance and lifespan for the engine.

Durability is another characteristic that sets the Zenoah G3700 apart. Its construction utilizes high-strength materials that can withstand the rigors of heavy-duty use, leading to longer intervals between service and an overall reduction in operational costs. The engine's design has been carefully crafted to dissipate heat efficiently, preventing overheating during prolonged use.

The Zenoah G3700 is often used as the power source for a variety of applications, including chainsaws, brush cutters, and trimmers, accommodating the diverse needs of professionals in different landscaping and maintenance contexts. Its versatility and ease of integration with various attachments further enhance its appeal in the market.

In conclusion, the Zenoah G3700 is a testament to advanced engineering in two-stroke engine design, offering a blend of power, efficiency, durability, and user-friendliness, making it an excellent choice for anyone seeking reliable performance in their outdoor power equipment. Whether for professional landscaping or home gardening projects, the G3700 stands out as an invaluable tool.
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