Oil Cap

Fuel mix cap

FUELING ENGINE

WARNING: Remove fuel cap slowly when refueling.

This engine is certified to operate on unleaded gasoline. Before operation, gasoline must be mixed with a good quality 2-cycle air-cooled engine oil designed to be mixed at a ratio of 40:1. A 40:1 ratio is obtained by mixing 0,125 liter of oil with 5 liters of unleaded gasoline. DO NOT USE automotive or boat oil. These oils will cause engine damage. When mixing fuel follow the instructions printed on the container. Always read and follow the safety rules relating to fuel before fueling your unit.

IMPORTANT

Experience indicates that alcohol blended fuels (called gasohol or using ethanol or methanol) can attract moisture which leads to separation and formation of acids during storage. Acidic gas can damage the fuel sys- tem of an engine while in storage. To avoid engine problems, empty the fuel system be- fore storage for 30 days or longer. Drain the gas tank, start the engine and let it run until the fuel lines and carburetor are empty. Use fresh fuel next season. Never use engine or carburetor cleaner products in the fuel tank or permanent damage may occur.

CHAIN BRAKE

Ensure chain brake is disengaged by pulling the front hand guard back toward the front han- dle as far as possible. The chain brake must be disengaged before cutting with the saw.

WARNING: The chain must not move when the engine runs at idle speed. If the chain moves at idle speed refer to CAR- BURETOR ADJUSTMENT within this manual. Avoid contact with the muffler. A hot muffler can cause serious burns.

To stop the engine, move the ON/STOP switch to the STOP position.

To start the engine, hold the saw firmly on the ground as illustrated below. Make sure the chain is free to turn without contacting any object.

Use only 40 --- 45 cm of rope per pull. Hold saw firmly while pulling starter rope.

IMPORTANT POINTS TO REMEMBER

When pulling the starter rope, do not use the full extent of the rope as this can cause the rope to break. Do not let starter rope snap back. Hold the handle and let the rope rewind slowly.

For cold weather starting, start the unit at full choke; allow the engine to warm up before squeezing the throttle trigger.

NOTE: Do not cut material with the choke/ fast idle lever at the FULL CHOKE position.

STARTING A COLD ENGINE (or a warm engine after running out of fuel)

NOTE: In the following steps, when the choke/fast idle lever is pulled out to the full extent, the correct throttle setting for starting is set automatically.

ON/STOP SWITCH

(SIDE VIEW)

ON

STOP

1.Move ON/STOP switch to the ON posi- tion.

2.Slowly press primer bulb 6 times.

3.Pull out choke/fast idle to the full extent (to the FULL CHOKE position).

4.Pull the starter rope sharply 5 times with your right hand. Then, proceed to the next step.

NOTE: If the engine sounds as if it is trying to start before the 5th pull, stop pulling and immediately proceed to the next step.

5.Push the choke/fast idle lever in to the HALF CHOKE position.

CHOKE/FAST IDLE LEVER

(SIDE VIEW)

Choke/ fast idle lever OFF HALF FULL

6.Pull the starter rope sharply with your right hand until the engine starts.

7.Allow the engine to run for approximately 30 seconds. Then, squeeze and release throttle trigger to allow engine to return to idle speed.

STARTING A WARM ENGINE

1.Move ON/STOP switch to the ON position.

2.Slowly press the primer bulb 6 times.

3.Pull the choke/fast idle lever out to the HALF CHOKE position.

4.Pull the starter rope sharply with your right hand until the engine starts.

5.Squeeze and release throttle trigger to allow engine to return to idle speed.

DIFFICULT STARTING (or starting a flooded engine)

The engine may be flooded with too much fuel if it has not started after 10 pulls. Flooded engines can be cleared of excess fuel by pushing the choke/fast idle lever in

9

Page 8 Page 10
Page 9
Image 9
McCulloch M4218, M3816 instruction manual Fueling Engine, Chain Brake, Important Points to Remember, Starting a Warm Engine
Page 8 Page 10

M4218, M3816 specifications

The McCulloch M3816 and M4218 are powerful chainsaws designed for both homeowner and professional use, combining reliability and advanced technology to handle a variety of cutting tasks. These models reflect McCulloch’s commitment to creating tools that offer performance and ease of use for a diverse range of users.

The McCulloch M3816 features a 38cc engine that delivers robust power while maintaining a lightweight profile, making it manageable for extended use. With its 16-inch bar and chain, it provides an ideal balance of cutting capability and maneuverability. The M3816 includes an automatic oiling system that ensures proper lubrication of the chain and bar, enhancing cutting efficiency and prolonging the life of the tool. Its comfortable handle design minimizes vibration, reducing fatigue during long working sessions.

On the other hand, the McCulloch M4218 is equipped with a more powerful 42cc engine, ideal for users who require a heavier-duty tool. This model supports a longer 18-inch bar, making it suitable for larger logs and more extensive cutting tasks. The M4218 also benefits from the automatic oiling system, ensuring optimal performance and less maintenance time. Both chainsaws incorporate an efficient air filtration system that keeps the engine cleaner, improving performance and longevity.

One of the key technologies found in both models is the Easy Start system. This innovation allows for a smoother pull, reducing the effort required to start the chainsaw. Additionally, both the M3816 and M4218 are designed with a tool-free chain tensioning feature, making adjustments quick and convenient without the need for specialized tools.

Safety is paramount in chainsaw design, and both models come equipped with essential safety features such as a chain brake that stops the chain instantly if the saw kicks back, and a safety throttle lock that prevents accidental start-up.

In conclusion, the McCulloch M3816 and M4218 chainsaws blend powerful engines, versatile bar lengths, and smart engineering solutions into user-friendly tools. They are ideal for anyone from casual users to professionals looking for dependable performance in their cutting tasks. Whether for tree pruning, firewood preparation, or larger cutting jobs, these chainsaws offer an excellent combination of features and technologies to meet diverse needs.
Top Page Image Contents