The STIHL MS 250 is a compact, high-performance chainsaw with a 45.4 cc engine, designed for reliability and efficiency. Ideal for homeowners and professionals, it excels in cutting firewood, felling small trees, and medium logging tasks, featuring a powerful 2-stroke engine and anti-vibration system for reduced fatigue.
1.1 Overview of the MS 250 Model
The STIHL MS 250 is a high-performance chainsaw designed for demanding tasks. With a powerful 45.4 cc, 2-stroke engine, it delivers 3.1 horsepower and 2.3 kW of power, making it suitable for cutting firewood, felling small trees, and medium logging jobs. Its compact design and lightweight construction enhance portability and maneuverability, while the anti-vibration system reduces user fatigue during extended use. This model is popular among both professionals and homeowners due to its reliability, efficiency, and versatility in various cutting applications.
Featuring a robust build and advanced engineering, the MS 250 is built to withstand tough conditions. Its ergonomic design ensures comfortable handling, and the chain brake system provides added safety. Whether for personal use or professional tasks, the STIHL MS 250 is a reliable choice for achieving precise and efficient cuts in a wide range of scenarios, making it a favorite among chainsaw enthusiasts worldwide.
1.2 Key Features and Benefits
The STIHL MS 250 Chainsaw features a powerful 45.4 cc engine, delivering high performance for demanding tasks. Its anti-vibration system minimizes user fatigue, while the high power-to-weight ratio ensures efficient cutting. The ergonomic design provides comfortable handling, and the chain brake offers enhanced safety. Built with durable materials, this chainsaw is reliable and ideal for professionals and homeowners, excelling in firewood, small trees, and medium logging jobs.
Safety Precautions and Guidelines
Always wear protective gear, including gloves, safety glasses, and sturdy footwear. Ensure the chain brake is engaged when starting. Follow proper handling techniques to avoid accidents.
2.1 General Safety Tips for Chainsaw Operation
Always wear personal protective equipment, including safety glasses, gloves, and sturdy footwear. Ensure the chain brake is engaged before starting the saw. Avoid loose clothing that could get caught in moving parts. Maintain a firm grip on the handles and keep a safe distance from bystanders. Never operate the saw in slippery or uneven terrain. Be aware of your surroundings to prevent accidents. Keep the chain sharp to avoid kickback and use proper cutting techniques. Regularly inspect the saw for damage or wear.
2.2 Understanding Pictograms and Symbols
The STIHL MS 250 features several pictograms and symbols to guide safe and proper operation. These include warnings for protective equipment, correct cutting techniques, and chain direction. Symbols may indicate hazards like sharp edges or hot surfaces. Understanding these markings is crucial for operator safety and optimal performance. Refer to the manual for detailed explanations of each pictogram to ensure compliance with safety guidelines and proper saw maintenance. Familiarize yourself with these symbols before use to avoid accidents and maintain the saw’s efficiency.
Operating Instructions
Engage the chain brake, set the ignition switch to “on,” pull the choke lever, and press the throttle lockout. Prime if needed, then pull the starter rope smoothly.
3;1 Starting the Chainsaw: Step-by-Step Guide
To start the STIHL MS 250, first engage the chain brake by pulling the lever towards you. Ensure the ignition switch is in the “on” position. Pull the choke lever out to enrich the fuel mixture for a cold start. Press the throttle trigger lockout to prevent accidental acceleration. Grip the front handle firmly and pull the starter rope smoothly with a controlled motion. If the engine doesn’t start, prime the carburetor by pressing the primer bulb a few times. Avoid overpriming to prevent flooding. Check the fuel level and ensure it’s fresh and mixed correctly. Clean or replace the spark plug if necessary and ensure the air filter is clean. Repeat the starting process, and the chainsaw should start efficiently. Always wear protective gear during operation.
3.2 Throttle and Choke Lever Functions
The throttle lever controls the engine speed, allowing you to adjust power output. Pressing the throttle increases RPM for cutting, while releasing it reduces speed. The choke lever enriches the fuel-air mixture for starting. Pull it out for a cold start, then push it in once the engine coughs. Proper use ensures efficient starting and smooth operation. Always engage the throttle lockout before starting to prevent accidental acceleration. Use these controls together to maximize performance and safety while operating the chainsaw.
Maintenance and Care
Regular maintenance ensures optimal performance and longevity. Sharpen the chain frequently, clean or replace air filters, and check oil levels. Inspect the chain brake and bar for damage. Always follow the manual’s guidelines for proper care and servicing to maintain your STIHL MS 250 chainsaw in top condition. Regular upkeep prevents operational issues and ensures safety during use. Remember to store the saw properly when not in use.
4.1 Regular Maintenance Checklist
To ensure optimal performance, follow this maintenance checklist for your STIHL MS 250 chainsaw:
– Sharpen the chain regularly to maintain cutting efficiency.
– Clean or replace the air filter to prevent dust and debris buildup.
– Check the chain tension and adjust as needed for proper cutting performance.
– Inspect the chain brake and bar for wear or damage.
– Lubricate the bar and chain with high-quality chain oil.
– Monitor the oil levels and top up as required.
– Clean the spark plug and ensure proper ignition function.
– Store the saw in a dry, cool place when not in use.
Regular maintenance prolongs the life of your chainsaw and ensures safe operation.
4.2 Sharpening the Chain: Best Practices
Sharpening the chain is essential for maintaining cutting efficiency and safety. Use a 5.3mm round file to sharpen the cutters, following the marked angle on each tooth. Always sharpen from the inside out to avoid damaging the chain. After sharpening, clean the chain with a soft brush to remove metal filings. Regular sharpening prevents wear and ensures smooth operation. Refer to the instruction manual for specific filing techniques and angle guides to maintain optimal performance and chain longevity.
Troubleshooting Common Issues
Common issues with the STIHL MS 250 include starting problems, chain derailment, and reduced performance. Check for fuel quality, spark plug condition, and air filter cleanliness. Ensure proper chain tension and sharpness for optimal cutting efficiency. Regularly inspect the bar and chain for wear. Consult the manual for detailed diagnostic steps and solutions to restore performance and extend the saw’s lifespan.
5.1 Diagnosing Starting Problems
Diagnosing starting issues with the STIHL MS 250 involves checking the chain brake, choke lever, and ignition switch. Ensure the chain brake is engaged and the choke is properly adjusted. If the engine floods, wait a few minutes before retrying. Check the spark plug for moisture or damage and ensure the fuel is fresh and correctly mixed. Verify the air filter is clean and the throttle trigger lockout is disengaged. Consult the manual for step-by-step troubleshooting to address these common starting challenges effectively.
5.2 Addressing Chain and Bar Maintenance
Regular chain and bar maintenance is crucial for optimal performance. Check the chain for wear, damage, or dullness, and sharpen or replace it as needed. Ensure proper chain tension to prevent sagging or over-tightening, which can damage the bar or affect cutting efficiency. Clean the bar groove and oil holes to maintain proper lubrication. Use a STIHL file or grinding stone for sharpening, and always follow the recommended sharpening angle. Inspect the bar for wear or damage and replace it if necessary to ensure smooth operation and safety.
Technical Specifications
The STIHL MS 250 features a 45.4 cc, 2-stroke engine delivering 3.1 hp, weighing 10.1 lbs without bar and chain, and supports bar lengths up to 20 inches.
6.1 Engine and Performance Details
The STIHL MS 250 is powered by a 45.4 cc, 2-stroke gasoline engine, delivering 3.1 horsepower and a maximum speed of 10,000 RPM. Its compact design ensures a high power-to-weight ratio, making it efficient for cutting firewood and felling small trees. The engine features a stratified scavenging system for reduced emissions and improved fuel efficiency. With a robust 2-stroke technology, the MS 250 provides reliable performance, while its anti-vibration system enhances operator comfort during extended use.
6.2 Design and Ergonomic Features
The STIHL MS 250 features a lightweight, compact design with an anti-vibration system, reducing operator fatigue. Its ergonomic handles provide a secure grip, while the balanced structure enhances maneuverability. The saw’s design ensures easy access to controls and minimal vibration transfer, improving comfort and efficiency during use. Built for durability, the MS 250 combines robust construction with user-friendly features, making it ideal for professionals and homeowners alike. Its design prioritizes safety and comfort, ensuring optimal performance in various cutting tasks.
Environmental Considerations
The STIHL MS 250 features a fuel-efficient 2-stroke engine, reducing emissions and environmental impact. It emphasizes eco-friendly design and encourages proper disposal and recycling of components;
7.1 Eco-Friendly Features of the MS 250
The STIHL MS 250 incorporates eco-friendly features such as a fuel-efficient 2-stroke engine, reducing emissions and environmental impact. Its design emphasizes low exhaust emissions and minimal fuel consumption, making it an environmentally conscious choice for logging and cutting tasks. Additionally, the chainsaw is built with recyclable materials, promoting sustainability. The anti-vibration system not only enhances user comfort but also ensures longer equipment life, reducing the need for frequent replacements and waste generation.
7.2 Proper Disposal and Recycling Guidelines
Proper disposal and recycling of the STIHL MS 250 are crucial for environmental protection. Always separate metal, plastic, and hazardous components like batteries and fuel. Check local recycling programs for guidelines on handling power tools. Avoid disposing of the chainsaw in regular trash to prevent landfill contamination. For complex parts, consult a professional or recycling center. Visit the official STIHL website for detailed disposal instructions and ensure compliance with regional regulations to promote sustainability and reduce waste.
Frequently Asked Questions (FAQs)
Addressing common queries about the STIHL MS 250, this section covers maintenance, troubleshooting, and performance optimization, helping users maximize their experience with the chainsaw.
8.1 Common User Queries and Solutions
Users often ask about starting issues, with solutions like checking spark plugs and ensuring proper choke usage. Others inquire about handling large trees, with recommendations for bar length and chain maintenance. Queries about flooding engines are addressed by advising against excessive primer use. Troubleshooting guides help diagnose issues like faulty ignition or carburetor problems. Additionally, users seek advice on chain sharpening and ergonomic handling for optimal performance, ensuring the MS 250 remains efficient and reliable for various tasks.
The STIHL MS 250 is a reliable, high-performance chainsaw designed for efficiency and durability. Its powerful engine and ergonomic design make it ideal for firewood cutting and medium logging tasks, ensuring optimal performance with proper maintenance and care.
9.1 Final Tips for Optimal Performance
For optimal performance, regularly sharpen the chain, check chain tension, and use the correct fuel mixture. Clean or replace the air filter and spark plug as needed. Store fuel properly to avoid contamination and ensure the saw is dry before storage. Always follow the maintenance schedule outlined in the manual and wear protective gear. Proper care extends the lifespan and ensures reliable operation of your STIHL MS 250 chainsaw.