The Stihl MS250 is a popular and reliable chainsaw used for various cutting tasks, including preparing firewood for wood-burning stoves. Properly starting this tool is essential for efficient and safe operation. In this article, we will provide clear and concise instructions for starting the Stihl MS250, suitable for both technical and non-technical audiences.
Step 1: Safety First
Before starting the Stihl MS250, ensure you’re wearing the necessary safety gear, including safety glasses, hearing protection, gloves, and appropriate clothing. Work in a well-ventilated area, away from flammable materials.
Step 2: Fuel and Oil Preparation
The Stihl MS250 is a two-stroke engine, which requires a mixture of gasoline and two-stroke engine oil. Use a high-quality oil and fresh gasoline in the correct ratio (usually 50:1 or as specified by the manufacturer). Prepare your fuel mix in a clean, approved container.
Step 3: Fueling the Chainsaw
Fill the chainsaw’s fuel tank with the mixed fuel. Avoid overfilling, as this can lead to leaks and pose a safety risk. Ensure the fuel cap is securely closed.
Step 4: Chain Brake and Starting Position
Engage the chain brake by pushing it forward towards the front handle. This ensures that the chain will not rotate during startup. Place the chainsaw on a flat and stable surface.
Step 5: Air Filter Check
Inspect the air filter to ensure it’s clean and free from debris. A clogged air filter can affect starting and performance. Clean or replace it as needed.
Step 6: Cold Start
For a cold start, follow these steps:
Set the master control lever (located on the top of the rear handle) to the "cold start" position. It’s marked with a snowflake symbol.
Push the decompression valve (if equipped) to release pressure in the cylinder. This eases starting by reducing the resistance in the engine.
Step 7: Starting the Engine
Hold the front handle with your left hand and the rear handle with your right hand.
Place your right foot on the rear handle to stabilize the saw.
Pull the starter handle gently until you feel resistance. Then, give it a firm and quick pull. This should start the engine. If it doesn’t start on the first try, repeat this step.
Step 8: Warm-Up
Allow the engine to warm up for a few moments by running it at idle. During this time, disengage the chain brake.
Step 9: Run Position
Move the master control lever to the "run" position (marked with a symbol of a running person).
Step 10: Safe Operation
With the chainsaw now running, you’re ready to use it for cutting wood. Always maintain a firm grip on both handles and be cautious of kickback.
Step 11: Shutting Down
To turn off the chainsaw, move the master control lever to the "stop" position. Allow the engine to cool down before refueling.
These clear and concise instructions for starting the Stihl MS250 will help you operate your chainsaw safely and efficiently, making it an essential tool for your wood-burning stove needs. Always refer to the manufacturer’s manual for specific instructions and safety guidelines.