8. Operation

OP5

OP6

.04 in

(1~2mm) (1)

OP7

(1)

IMPORTANT

•Avoid pulling the rope to its end or returning it by releasing the knob. Such actions can cause starter failures.

6.Move the choke lever downward to open the choke. And restart engine. (OP3)

7.Allow the engine to warm up for a several minutes before starting operation.

NOTE

1.When restarting the engine immediately after stopping it, leave the choke open.

2.Overchoking can make the engine hard to start due to excess fuel. When the engine failed to start after several attempts, open the choke and repeat pulling the rope, or remove the spark plug and dry it.

■STOPPING ENGINE (OP4)

1.Release the throttle lever and run the engine for a half minute.

2.Shift the ignition switch to the STOP position.

IMPORTANT

•Except for an emergency, avoid stopping the engine while pulling the throttle lever.

■ADJUSTING THROTTLE CABLE

•The normal play is 1 or 2mm when measured at the carburetor side end. Readjust with the cable adjuster as required. (OP6)

(1) cable adjuster

■ADJUSTING IDLING SPEED (OP7)

1.When the engine tends stop frequently at idling mode, turn the adjusting screw clockwise.

2.When the cutting head keeps rotating after releasing the trigger, turn the adjusting screw counter-clockwise.

(1) idle adjusting screw

NOTE

•Warm up the engine before adjusting the idling speed.

17

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Zenoah HEZ2500F manual  17 
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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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