How To Start A Stihl Weed Eater Fs 56 Rc

The Stihl FS 56 RC is a common and reliable gasoline-powered weed eater. The following steps outline how to start this device effectively.

Preparation

Before commencing the starting procedure, ensure the equipment is in optimal condition.

Safety Inspection

Prior to any attempt to start the weed eater, perform a thorough safety check:

• Examine the cutting head for any damage or obstructions.
• Verify the safety guard is securely attached.
• Ensure the area is clear of people, pets, and objects that could be damaged or become projectiles.

Fuel Mixture Verification

The Stihl FS 56 RC operates on a mixture of gasoline and two-stroke engine oil. The correct ratio is critical for engine lubrication and performance.

• Confirm that the fuel tank contains the proper fuel mixture. The typical ratio is 50:1 (50 parts gasoline to 1 part two-stroke oil), but refer to the equipment’s manual for specific recommendations.
• If the fuel mixture is old (more than 30 days), drain it and replace it with fresh fuel. Old fuel can cause starting problems and engine damage.

Starting Procedure

The starting procedure can vary slightly depending on whether the engine is cold or warm. The following procedure details the process for a cold start, with notes on adapting it for a warm start.

Step 1: Setting the Start Switch

Locate the start switch. Move the start switch to the “Start” or “Choke” position. This position is typically indicated by a symbol that represents starting, such as a small engine icon or the word "Start." The specific marking can vary slightly across models, but the intent is always the same – enabling the starting circuit.

Step 2: Activating the Choke (Cold Start Only)

If the engine is cold, activate the choke. The choke restricts airflow to the engine, creating a richer fuel mixture that is easier to ignite when the engine is cold.

• Locate the choke lever. It is usually located near the carburetor.
• Move the choke lever to the closed position. This position is typically indicated by a symbol that represents a closed choke.
• Note: If the engine is warm, skip this step. A warm engine does not require the extra fuel enrichment provided by the choke. Attempting to start a warm engine with the choke engaged can flood the engine, making it difficult to start.

Step 3: Priming the Carburetor

Priming the carburetor introduces fuel directly into the carburetor, making it easier to start the engine. This is especially helpful after the weed eater has been stored for a long period, or if the fuel tank has been completely emptied.

• Locate the primer bulb. The primer bulb is a small, transparent bulb typically located near the carburetor.
• Press the primer bulb several times (usually 6-8 times) until fuel is visible in the bulb. This indicates that fuel is being drawn into the carburetor. Avoid over-priming, as this can flood the engine.

Step 4: Starting the Engine

With the start switch in the correct position, the choke engaged (if the engine is cold), and the carburetor primed, proceed to start the engine.

• Place the weed eater on a flat, stable surface. Ensure the cutting head is clear of any obstructions.
• Hold the weed eater firmly with one hand.
• Grip the starter rope handle with the other hand.
• Pull the starter rope handle sharply and smoothly. Avoid pulling the rope out to its full extent.
• Repeat this process several times until the engine starts. The engine may sputter and die initially. This is normal.

Step 5: Adjusting the Choke (Cold Start Only)

Once the engine starts and runs briefly, adjust the choke.

• After the engine starts, move the choke lever to the half-choke position or fully open position. This allows more air into the engine, enabling it to run more smoothly.
• If there is no half-choke position, gradually move choke to fully open position.
• If the engine stalls after disengaging the choke, return it to the choke position and try again. You may need to repeat this process several times until the engine warms up sufficiently to run without the choke.

Step 6: Allowing the Engine to Warm Up

Allow the engine to warm up for a few minutes before using the weed eater. This allows the engine oil to circulate properly and lubricate the engine components.

• Let the engine run at idle speed for a few minutes. Avoid running the engine at high speed until it has warmed up.

Starting a Warm Engine

If the engine is already warm, the starting procedure is simplified:

• Ensure the start switch is in the “Start” position.
• Do not engage the choke.
• Pull the starter rope handle sharply and smoothly. The engine should start relatively easily.
• If the engine does not start after a few attempts, prime the carburetor once or twice and try again.

Troubleshooting

If the weed eater fails to start, consider the following troubleshooting steps:

• Check the fuel: Ensure the fuel tank contains fresh fuel mixture.
• Check the spark plug: Remove the spark plug and inspect it. If it is fouled with carbon or oil, clean or replace it.
• Check the air filter: A dirty air filter can restrict airflow to the engine, making it difficult to start. Clean or replace the air filter as needed.
• Check the carburetor: If the carburetor is clogged or malfunctioning, it may need to be cleaned or rebuilt.

Practical Advice

Starting a Stihl FS 56 RC weed eater becomes easier with practice. Understanding the function of each component, such as the choke and primer bulb, is crucial for successful operation.

Regular maintenance, including using fresh fuel, cleaning the air filter, and inspecting the spark plug, can prevent starting problems and prolong the life of the equipment.

Always consult the equipment’s manual for specific instructions and recommendations. The manual contains valuable information about the equipment’s operation, maintenance, and safety.