Makita EM5250CA, EM4250 instruction manual Storage, Fault location

Models: EM5250CA EM4250

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STORAGE

WARNING: When draining the fuel, be sure to stop the engine and confirm that the engine cools down.

Just after stopping the engine, it may still hot with possibility of burns, inflammability and fire.

ATTENTION: When the machine is kept out of operation for a long time, drain up all fuel from the fuel tank and carburetor, and keep it at a dry and clean place.

Drain up fuel from the fuel tank and carburetor according to the following procedure:

1)Remove the fuel tank cap, and drain fuel completely.

If there is any foreign matter remaining in the fuel tank, remove it completely.

2)Pull out the fuel filter from the refill port using a wire.

3)Push the primer pump until fuel is drained from there, and drain fuel coming into the fuel tank.

4)Reset the filter to the fuel tank, and securely tighten the fuel tank cap.

5)Then, continue to operate the engine until it stops.

Remove the spark plug, and drip several drops of engine oil through the spark plug hole.

Gently pull the starter handle so that engine oil will spread over the engine, and attach the spark plug.

Attach the cover to the cutter blade.

During storage, keep the rod horizontal or keep the machine upright with the blade edge oriented upward. (In this case, pay full attention to prevent the machine from falling.)

Never store the machine with the cutter blade edge oriented downward. Lubricating oil may spill out.

Keep the drained fuel in a special container in a well-ventilated shade.

Drain fuel

Humidity

 

Attention after long-time storage

Before startup after long-time shutdown, be sure to replace oil (refer to P 18). Oil will deteriorate while the machine is kept out of operation.

Fault location

Fault

System

Observation

Cause

 

 

 

 

Engine not starting or with

Ignition system

Ignition spark O.K.

Fault in fuel supply or compression system, mechanical

difficulty

 

 

defect

 

 

No ignition spark

STOP-switch operated, wiring fault or short circuit, spark

 

 

 

plug or connector defective, ignition module faulty

 

Fuel supply

Fuel tank filled

Incorrect choke position, carburetor defective, fuel supply

 

 

 

line bent or blocked, fuel dirty.

 

Compression

No compression when

Cylinder bottom gasket defective, crankshaft seals

 

 

pulled over

damaged, cylinder or piston rings defective or improper

 

 

 

sealing of spark plug

 

Mechanical fault

Starter not engaging

Broken starter spring, broken parts inside of the engine

Warm start problems

 

Tank filled ignition spark

Carburetor contaminated, have it cleaned

 

 

existing

 

Engine starts but dies

Fuel supply

Tank filled

Incorrect idling adjustment, carburetor contaminated

 

 

 

Fuel tank vent defective, fuel supply line interrupted,

 

 

 

cable or STOP-switch faulty

Insufficient performance

Several systems

Engine idling poor

Air filter contaminated, carburetor contaminated, muffler

 

may simultaneously

 

clogged, exhaust duct in the cylinder clogged

 

be affected

 

 

 

 

 

 

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Makita EM5250CA, EM4250 instruction manual Storage, Fault location

EM5250CA, EM4250 specifications

The Makita EM4251CA and EM4250CA models are the latest additions to Makita's robust range of outdoor power equipment, specifically designed for professional landscapers and gardening enthusiasts. These brushcutters are known for their powerful performance, ease of use, and advanced technologies that enhance efficiency and durability.

The Makita EM4251CA features a displacement of 25.4cc, while the EM4250CA is slightly larger, with a 30.5cc engine. Both models are equipped with a high-performance 2-stroke engine that delivers impressive power and torque for tackling thick grass, weeds, and underbrush. The engines are designed for low emissions and fuel consumption, contributing to environmentally friendly operation while maintaining compliance with the latest regulatory standards.

One of the standout features of these brushcutters is the Easy Start System, which significantly reduces the effort required to start the engine. This system incorporates a spring-assisted starter that provides a smooth and reliable start every time. Additionally, the models offer a semi-automatic choke system that adjusts fuel flow for optimal performance in varying conditions.

For user comfort, the EM4251CA and EM4250CA are designed ergonomically, with a lightweight construction that enhances maneuverability without compromising strength. The adjustable bike handle provides solid control during operation, minimizing user fatigue during lengthy tasks. Both models also feature anti-vibration technology that reduces vibrations transmitted to the user, ensuring a more comfortable experience.

A robust and durable design is another hallmark of Makita's brushcutters. The fuel tank is constructed from high-quality materials to resist impacts and environmental factors, while the shaft is reinforced to withstand rigorous use. The inclusion of a reinforced cutter head allows for versatile cutting options, accommodating both trimmer line and metal blades for various applications.

For added convenience, these models are equipped with a soft grip handle that provides comfort during extended use, alongside a quick-release harness that allows for swift transitions between tasks. Overall, the Makita EM4251CA and EM4250CA brushcutters represent a blend of power, efficiency, and user-oriented design, making them ideal tools for anyone serious about maintaining their outdoor spaces.

With their mix of advanced technology and practical features, the EM4251 and EM4250 models ensure that users can tackle tough landscaping jobs with confidence and ease, making them invaluable assets for both professionals and hobbyists alike.