79 cc Chain Saw, Power Head Only

Features

  • Heavy-duty air filter system for improved durability
  • Automatic half throttle lock for easier starting
  • Slide-out baffle for efficient cold weather operation
  • Lateral chain tensioning for quick adjustments
  • Advanced vibration dampening system

Specifications

Engine Displacement 4.8 cu.in. (78.5 cc)
Power Rating 5.7 HP / 4.3 kW
Max Engine Speed 12,800 RPM
Configuration Powerhead only
Pitch 3/8 in.
Fuel Mixture 50:1
Fuel Tank Capacity 25.4 oz.
Oil Tank Capacity 14.2 oz.
Net Weight (W/O Bar & Chain) 14.7 lb.
User Type Professional
Power Type 2-stroke gas

The 79 cc chain saw is designed for various applications. It features a 79 cc engine that provides a power output of 5.7 HP and operates at an engine speed of 12,800 RPM. The design includes an automatic half-throttle lock for easier starting and an electronic ignition system that optimizes timing across different speeds. It is suitable for forestry tasks.

Model Number: EA7900PRZ2

Makita 79 cc Chain Saw, Power Head Only Review

5.0 out of 5

The first time I laid eyes on the Makita EA7900PRZ2, I could tell it was built for serious work. This isn't your average homeowner's chainsaw; it's designed for professionals who need power, reliability, and efficiency in their forestry tasks. The moment I picked it up, the robust build and solid feel reassured me of its potential. However, as with any high-performance tool, the real test comes in the field, and the Makita did not disappoint.

Power and Performance

The heart of this chainsaw is its 79 cc engine, producing an impressive 5.7 HP. The engine operates at a maximum speed of 12,800 RPM, making it one of the most powerful chainsaws in its class. This power translates to exceptional cutting performance, allowing the saw to zip through large logs and dense wood with ease. Whether you're felling trees, bucking logs, or performing other demanding tasks, the Makita delivers consistent and reliable power.

I paired the powerhead with a 28-inch Tsumura light bar and a 3/8 .050 full chisel chain, which turned out to be a perfect combination for the work I had lined up. Even when I buried the bar in white oak, the saw showed no signs of bogging down. It maintained its speed and power, slicing through the wood like a hot knife through butter.

Ease of Use and Starting

Starting a chainsaw can be a daunting task, especially with a high-powered model like the Makita. However, the automatic half-throttle lock simplifies the process significantly. After a bit of initial tuning—adjusting the high and low screws to prevent flooding and resetting the coil gap for a better spark—the saw started reliably every time. The electronic ignition system also plays a crucial role in optimizing timing across different speeds, ensuring smooth operation.

One feature I particularly appreciated was the advanced vibration dampening system. Long hours of chainsaw operation can be taxing, but the Makita's design reduces fatigue, allowing for extended periods of productive work without the usual discomfort associated with prolonged chainsaw use.

Durability and Maintenance

Durability is a crucial factor for professional tools, and the Makita EA7900PRZ2 excels in this area. The heavy-duty air filter system enhances the engine's longevity by preventing debris and dust from causing damage. Moreover, the slide-out baffle is a thoughtful addition for efficient cold weather operation, ensuring the saw performs optimally in various conditions.

Maintenance is straightforward, thanks to the lateral chain tensioning feature, which allows for quick and easy adjustments. This is a significant time saver, especially when working in remote locations where time is of the essence. The saw's design also facilitates easy access to critical components, making routine maintenance tasks less cumbersome.

Weight and Balance

Despite its powerful engine, the Makita is relatively lightweight for its class, weighing in at 14.7 pounds without the bar and chain. This balance between power and weight is a testament to Makita's engineering prowess. The saw feels balanced in hand, with a comfortable grip that enhances control and precision during operation.

Fuel and Oil Capacity

With a fuel tank capacity of 25.4 ounces and an oil tank capacity of 14.2 ounces, the Makita strikes a good balance between operational time and the need for refueling. The 50:1 fuel mixture ensures optimal engine performance and longevity. During my use, I found that the fuel and oil capacities were sufficient for extended periods of work without frequent interruptions, which is a significant advantage in professional settings.

Conclusion

The Makita EA7900PRZ2 is an outstanding chainsaw that delivers on its promise of power, reliability, and efficiency. It's a tool designed for professionals who need a robust and dependable saw for demanding forestry tasks. While it may require some initial tuning to get it running perfectly, the effort is well worth it for the performance it offers.

If you're experienced with chainsaws and need a tool that can handle the toughest jobs, I highly recommend the Makita EA7900PRZ2. Its combination of power, ease of use, and durability makes it a valuable addition to any professional's toolkit.


Project Ideas

Business

Tree Removal Service

Start a tree removal service for homeowners and businesses. The chain saw's power makes it suitable for cutting down and removing large trees safely and efficiently.


Custom Woodworking Business

Launch a custom woodworking business that offers unique furniture, sculptures, and decor items. Use the chain saw for initial cuts and shaping before finishing the pieces by hand.


Firewood Supply

Start a firewood supply business. Use the chain saw to cut logs into firewood-sized pieces, then sell them to local customers for heating or campfires.


Landscaping Services

Expand a landscaping business to include tree trimming and removal services. The chain saw can help you handle larger projects and offer more comprehensive services to clients.


Chainsaw Carving Workshops

Offer chainsaw carving workshops where you teach others how to create wooden sculptures using a chain saw. This can be a unique and engaging way to monetize your skills and expertise.

Creative

Wooden Sculptures

Use the chain saw to create intricate wooden sculptures. The precision and power of the saw can help you carve detailed designs out of large logs or tree trunks.


Custom Furniture

Craft custom, rustic furniture pieces such as tables, chairs, and benches. The chain saw can be used to shape and size the wood according to your design.


Outdoor Decor

Create unique outdoor decor items like totem poles, garden benches, and birdhouses. The chain saw can help you efficiently cut and carve these items from raw wood.


Treehouse Construction

Build a treehouse using the chain saw for cutting and shaping the wood. Its power and precision are ideal for creating the necessary components for a sturdy and safe treehouse.


Chainsaw Art Competitions

Participate in or organize chainsaw art competitions. Use your skills and the chain saw to create impressive artworks under time constraints, showcasing your craftsmanship.