Zenoah HEZ2500F manual  20 

Page 20

9. Maintenance

MA1

(1)

MA2

(1)

MA3

.025 in

0.655mm

WARNING

•Make sure that the engine has stopped and is cool before performing any service to the machine. Contact with moving cutting head or hot muffler may result in a personal injury.

■AIR FILTER

•The air filter, if clogged, will reduce the engine performance. Check and clean the filter element in warm, soapy water as required. Dry completely before installing. If the element is broken or shrunk, replace with a new one. (MA1)

(1) air filter

■FUEL FILTER

•When the engine runs short of fuel supply, check the fuel cap and the fuel filter for blockage. (MA2)

(1) fuel filter

■SPARK PLUG

•Starting failure and mis-firing are often caused by a fouled spark plug. Clean the spark plug and check that the plug gap is in the correct range. For a replacement plug, use the correct type specified by RedMax. (MA3)

•REPLACEMENT PLUG:

HE225F: Champion RCJ6Y

HEZ2500F: NGK CMR7A

IMPORTANT

•Note that using any spark plug other than those designated may result in the engine failing to operate properly or in the engine becoming overheated and damaged.

•To install the spark plug, first turn the plug until it is finger tight, then tighten it a quarter turn more with a socket wrench.

20

TIGHTENING TORQUE:

87~104 in-lbs (9.8~11.8 N.m.)

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Contents HE225F HEZ2500F Page Safety First Contents 4  SpecificationsParts location  5  Symbols on the machine  6 For safe operation Working ConditionWorking Circumstance  7 Working Plan  8  9  Before Starting the EngineStarting the Engine  10  Using the ProductIf Someone Comes Maintenance  11  12  Handling FuelTransportation Set up  13 HOW to MIX Fuel Fuel 14  Recommended Mixing Ratio Gasoline 50OILFueling the Unit For Your Engine LIFE, AvoidOperation  16  17  OP8 HOW to USE  18  19  MaintenanceMaintenance Chart  20  MA4 MA5 MA6 Muffler Spark ArresterGear Case Drive Shaft MA6MA7 Blade MA7Intake AIR Cooling Vent  22 Procedures to be Performed After Every 100 Hours of USE StorageMA9 Propector 24  Troubleshooting guideCheck Probable Causes Action Parts list  25 Drive Unit S/N 200001 and up  26  27  Engine Unit HE225F S/N 50100000 and up  28  29  DiaphragmEngine Unit HEZ2500F S/N 50100000 and up  30  31  DiaphragmLimited Warranty RedMax Garantie limitée Page Page Komatsu Zenoah America INC

HEZ2500F specifications

The Zenoah HEZ2500F is a versatile and powerful two-stroke engine designed for a wide range of applications, including remote-controlled aircraft and various types of RC vehicles. Known for its exceptional performance and reliability, the HEZ2500F integrates advanced technologies that enhance its efficiency and ease of use, making it a preferred choice among hobbyists and professionals alike.

One of the main features of the Zenoah HEZ2500F is its lightweight yet robust design. Weighing in at just around 2.5 kilograms, the engine is constructed with durable materials that ensure long-lasting performance while keeping the overall weight low. This characteristic is crucial for applications where minimizing weight can significantly improve flight times and maneuverability.

The engine boasts a displacement of 25 cc, providing ample power for demanding tasks. Its specific power output delivers exceptional acceleration and speed, making it well-suited for competitive racing and high-performance applications. The HEZ2500F is engineered with a unique cooling system that helps maintain optimal operating temperatures during prolonged use, ensuring a consistent performance and reducing the risk of overheating.

One of the standout technologies integrated into the HEZ2500F is its advanced ignition system. This electronic ignition provides reliable starts in various weather conditions, ensuring users can depend on the engine when it is most needed. Additionally, its carburetor is designed for seamless adjustments, enabling easy tuning for different altitudes and performance preferences.

Furthermore, the Zenoah HEZ2500F is known for its fuel efficiency. The engine's optimized combustion chamber design maximizes the burn of fuel, translating to longer run times and reduced fuel consumption. This feature not only saves costs for the operator but also contributes to a lower environmental impact, making it a more sustainable option in the long run.

Overall, the Zenoah HEZ2500F stands out in the field of small engines thanks to its impeccable balance of power, efficiency, and reliability. Whether for hobbyists seeking thrilling flight experiences or professionals requiring dependable performance, the HEZ2500F encompasses all the essential characteristics that enhance user satisfaction and operational success. Its combination of lightweight design, robust power output, advanced ignition technology, and fuel efficiency positions it as a leading choice in the market of small engines.
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