Throttle lever, Engine block | Makita EK7651H, EK7650H specification

Repair

[4]DISASSEMBLY/ASSEMBLY

[4]-6. Throttle lever

DISASSEMBLING

(1)Remove Pin 5 from the grooves on Tank complete by levering it up with a slotted screwdriver. (Fig. 42)

(2)Expand the hinge portion for Throttle lever on Tank complete with 1R003. (Fig. 43)

Throttle lever section can be removed as drawn in Fig. 44.

Fig. 43

Fig. 44

1R003

Pin 5

Throttle lever

Lock off lever

	Torsion
Expand the hinge portion carefully.	spring 12
Expand the hinge portion carefully.

P 12/ 19

Fig. 42

Pin 5

[4]-7. Engine block

DISASSEMBLING

Note: • It is highly recommended to drain the oil system of Engine block before starting disassembling because the oil remaining there will drip out to delay your operation.

•When Piston section is repaired, it is necessary to remove Engine from Tank complete.

(1)Remove Hood section. Refer to Fig. 4 of [4]-1.

(2)Remove Carburetor. Refer to [4]-5.

Refer to Fig. 45 and do the following steps (3), (4), (5).

(3)Remove three Tubes’ ends that come from Cylinder block complete as follows:

•Tube 3-170 with Clamp to Rocker cover

•Tube 3-130 to Hose joint in Seal

•Tube 3-75 to Hose joint in Seal

(4)Remove Tube 5-70 with Clamp from Rocker cover.

(5)Loosen Hose clamp 30 then remove Suction line from Cylinder block complete.

Fig. 45

Tube 3-170	Rocker cover
with Clamp
Tube 5-70
with Clamp
Tube 3-130	Suction line
Seal with Joints
Tube 3-75
Cylinder block	Hose clamp 30

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.