5.5x20 Hexalobular tapping screw
Grip cover
Fig. 32
P 10/ 19

Repair

[4]DISASSEMBLY/ASSEMBLY

[4]-5. Carburetor

(1) After completion of the steps (1) and (2) on [4]-4, remove Grip cover by loosening 5.5x20 Hexalobular tapping screw. (Fig. 32)

(2) Loosen two M5x45 Hexalobular socket head bolts, then remove Carburetor and Filter gasket from Carburetor mount. (Figs. 33 and 34)

Note: Use 1R311 to hold/ pinch Tubes to lever it up for easy removing.

Do not use the sharp edged Pliers that causes damage to Tubes. (Fig. 35)

(3) Remove Contact spring. (Fig. 36)

(4)Carburetor WT can be disassembled as shown in Fig. 37.

Note: • Check the components’ shrinkage, hardening or breakage due to aged deterioration. If any, replace it with a new one.

•Carburetor for some countries is different from Carburetor WT. (Fig. 37) The components cannot be supplied individually because of the regulation for compliance with standards.

(5)Before mounting the inner parts of Pump body assembly in place, make sure that the tip of Inlet needle valve is neither worn nor deformed.

Note: The inner parts are not available individually. If you need some of the inner parts, order Pump body assembly.

(6)Make sure that Inlet screen is not clogged, then set it back in place.

(7)Spray carburetor cleaner in all the fuel lines of Carburetor, then after several minutes, wash out dirt and debris with clean gasoline.

Fig. 33

Fig. 34

Filter bracket

M5x45 Hexalobular socket head bolt

Carburetor WT

Filter bracket

Carburetor gasket

 

 

M5x45 Hexalo-

 

bular socket head

 

bolt (2 pcs.)

Throttle linkage

 

(2 pcs.)

 

Fig. 35

 

1R311

Tube

The shape edges

damage Tubes.

 

Fig. 36

Tank complete

Contact spring

Fig. 37

Inner parts of Pump body assembly

Metering lever pin Screw

Metering Spring lever

Inlet needle valve

Screw assembly (4 pcs.)

Metering cover

assembly

Metering diaphragm

assembly

Metering diaphragm gasket

Inlet screen

Limiter cap

Pump body assembly

Pump diaphragm

Pump gasket

Pump body assembly

Spring

Idle adjust screw Screw

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Image 10
Makita EK7651H, EK7650H dimensions Carburetor
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EK7650H, EK7651H specifications

The Makita EK7650H and EK7651H are robust and powerful cut-off saws designed for professional contractors and construction workers. These models are ideal for cutting through concrete, masonry, asphalt, and other tough materials with precision and efficiency. Their advanced engineering and innovative features set them apart in the competitive landscape of power tools.

One of the standout features of both models is the 4-stroke engine technology, which provides a significant reduction in emissions and noise compared to traditional 2-stroke engines. This makes them environmentally friendly while also allowing for longer operating times without the need for frequent fuel refills. The powerful 6.6 HP engine delivers exceptional cutting performance, enabling users to tackle even the most challenging jobs.

The EK7650H and EK7651H are equipped with a “Fast Start” technology that allows for easy starting, reducing the effort required to get the saw up and running. This is especially useful for users who need to work quickly and efficiently on-site. Additionally, the saws feature an automatic choke that enhances starting reliability in various weather conditions.

Comfort and usability are central to the design of these models. The dual anti-vibration technology minimizes vibrations during operation, significantly reducing user fatigue. The ergonomic handle provides a secure grip, allowing for greater control during cutting tasks. This is particularly beneficial for prolonged use in demanding work environments.

Another key characteristic of the Makita EK7650H and EK7651H is their versatility. They are designed to accommodate various blade sizes, which gives users flexibility in choosing the right blade for specific applications. The saws also feature an integrated dust management system that helps keep the work area clean, enhancing visibility and safety.

Both models come with an adjustable cutting depth feature, enabling users to achieve precise cuts for various materials. The easy-to-access air filter and fuel system ensure simple maintenance, extending the life of the saws.

In summary, the Makita EK7650H and EK7651H are powerful, efficient, and user-friendly cut-off saws that cater to the needs of professional users. With their advanced features, including a 4-stroke engine, ergonomic design, and versatility in blade sizes, these saws are indispensable tools for anyone looking to perform cutting tasks with precision and ease.
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