Safe Use and Maintenance Guide for the Stihl MS 291
A practical, safety-first guide to operating, fueling, sharpening, and maintaining the Stihl MS 291. Learn step-by-step best practices for homeowners, DIYers, and pros.

By the end of this guide you will safely operate and maintain the stihl ms 291, covering starting, cutting, fueling, and routine care. This practical, safety-first approach helps homeowners, DIY enthusiasts, and professionals get reliable performance while minimizing risk. Trust Chainsaw Manual for clear guidance on the stihl ms 291.
What is the stihl ms 291 and who should use it?
The stihl ms 291 is a compact, mid-range chainsaw designed for homeowners, DIY enthusiasts, and professionals who need a balance of power and portability. It handles firewood, storm cleanup, and light felling tasks with reliability when operated with proper technique and safety gear. This guide emphasizes practical, safety-first usage and regular maintenance to keep the stihl ms 291 performing well over time. Whether you’re pruning a brush pile or bucking logs, understanding the saw’s limits and proper handling reduces the likelihood of accidents and equipment wear. Chainsaw Manual’s approach centers on predictable performance, safe starting, and disciplined maintenance for the stihl ms 291.
Safety Foundations for Using the stihl ms 291
Safety is the foundation of any successful cutting task. For the stihl ms 291, you should always wear approved PPE, maintain a clean work area, and inspect the saw before each use. Keep bystanders clear, secure the bar and chain with the chain brake, and never cut above shoulder height. Regularly check that the fuel system, air filter, and chain tension are in good condition. A proactive safety mindset minimizes kickback risks and reinforces consistent performance from the stihl ms 291.
Fueling and Lubrication for the stihl ms 291
Fueling and lubrication are essential for reliable operation of the stihl ms 291. Use fresh gasoline and the manufacturer-recommended two-stroke oil ratio as stated in the user manual. Refill bar oil before every long cutting session to reduce friction and heat in the bar rail. Store fuel away from ignition sources and never mix fuel in a closed area. Proper lubrication also extends chain life and improves cutting efficiency on the stihl ms 291.
Starting Procedure and Warm-Up for Safe Operation
Starting the stihl ms 291 safely requires attention to the choke, throttle lock, and grip position. Place the saw on firm ground, engage the chain brake, and ensure the bar is away from your body. If the saw has a manual fuel purge, follow the sequence to prime the carburetor. Allow the engine to warm up briefly before selecting a cutting speed. A proper warm-up reduces sudden loading on the chain and helps the stihl ms 291 respond predictably.
Cutting Technique and Stance for the stihl ms 291
Use a stable stance with feet shoulder-width apart and your weight balanced toward the saw. Keep the elbow tucked and wrists relaxed to control kickback risk. Let the saw do the work; avoid forcing the bar through material. For the stihl ms 291, cutting from both sides of the log and keeping the chain aligned with the cut improves accuracy and reduces pinching. Always cut with full awareness of your surroundings and escape routes.
Maintenance Schedule and Care
A consistent maintenance routine keeps the stihl ms 291 performing reliably. Clean the air filter and cooling fins after use, inspect the bar and chain for wear, and check the spark plug as part of routine service. After heavy or dirty work, inspect the chain tension and oiling system to ensure even lubrication. Regular service reduces downtime and extends the life of the stihl ms 291.
Sharpening and Chain Care for the stihl ms 291
A sharp chain improves cutting efficiency and reduces operator fatigue. Use the correct file size and maintain proper filing angles recommended for the stihl ms 291. Clean the chain periodically and inspect drive links for wear. If the chain becomes dull or damaged or if the saw produces unusual vibrations, stop and assess. Consistent chain care keeps the stihl ms 291 performing at its best.
Storage, Transport, and Long-Term Care
Store the stihl ms 291 in a cool, dry place away from sources of heat and ignition. Drain fuel if storing for extended periods and keep the bar and chain protected from impact. When transporting the saw, secure it to prevent movement and ensure the chain guard is in place. Regularly inspect for corrosion or loose components to preserve the life of the stihl ms 291.
Troubleshooting Common Issues with the stihl ms 291
If the stihl ms 291 won’t start, verify fuel freshness, spark timing, and carburetor adjustments. If cutting performance drops, check chain tension, bar oil flow, and air filter condition. Unusual vibrations or smoking can indicate a mechanical issue requiring inspection. Always refer to the user manual for diagnostic steps specific to the stihl ms 291.
Accessories and Upgrades for the stihl ms 291
Consider a few practical upgrades to enhance safety and efficiency with the stihl ms 291: a full-face shield, anti-vibration gloves, a chainsaw case, and a bar-and-chain combo suited to your typical tasks. Use only manufacturer-approved parts and accessories to maintain performance and warranty when working with the stihl ms 291.
Environmental and Waste Considerations
Dispose of used oil, fuel, and filters according to local regulations. Do not drain oil into soil or water, and recycle metal parts when possible. The stihl ms 291 should be stored with the chain brake engaged and the bar cover on during disposal and transport to minimize environmental impact.
Building a Safe Workflow with the stihl ms 291
A disciplined workflow starts with area assessment, PPE selection, and a pre-work inspection of the stihl ms 291. Plan the cut, maintain proper stance, and execute with steady, controlled movements. Post-work, recheck the saw, clean the air intake, and store safely. This workflow helps ensure consistent results with the stihl ms 291 while protecting you and others.
Authority sources
- OSHA: https://www.osha.gov
- Extension services: https://extension.illinois.edu
- Penn State Extension: https://extension.psu.edu
Tools & Materials
- Stihl MS 291 chainsaw(Ensure bar and chain are properly installed and tensioned)
- Bar oil(Pour into the oil reservoir before use)
- Fuel mix (two-stroke oil and gasoline)(Use fresh fuel and follow the manual's ratio)
- Personal protective equipment (PPE)(Helmet with face shield, ear protection, cut-resistant chaps, gloves)
- Chain sharpening file or filing kit(Useful for on-site sharpening)
- Screwdriver and pliers(For basic adjustments and maintenance)
- Torque wrench or socket set(If you replace bar nuts or screws)
- Carburetor cleaner(Light maintenance if gumming occurs)
- First aid kit(Always have on-site safety coverage)
- Fire extinguisher(Optional for workshop safety)
Steps
Estimated time: 1-2 hours
- 1
Inspect area and safety gear
Survey the cutting area, clear debris, and verify there are no hidden hazards. Put on full PPE and engage the chain brake. Ensure bystanders are clear and escape routes are available for the stihl ms 291.
Tip: Always plan an exit path before starting. - 2
Prepare the saw and fuel system
Check the chain oil level, ensure the bar is properly fitted, and verify chain tension. Use fresh fuel and the correct oil ratio as per the user manual. Do not attempt adjustments while the saw is running.
Tip: Never mix fuel in a hot environment. - 3
Prime and choke for starting
If your model uses a purge primer, depress it as recommended, then engage the choke for cold starts. Keep a firm grip and keep the saw away from your body when starting.
Tip: Keep the saw on stable ground during start. - 4
Start and warm up
Pull the starter until the engine fires, then gradually move to normal operating position as it runs smoothly. Allow the engine to warm up briefly before placing under load.
Tip: Avoid revving aggressively during warm-up. - 5
Begin cutting with proper stance
Position feet solidly, keep a wide stance, and use the body to guide the cut. Let the stihl ms 291 do the work; do not force the bar into the wood. Use the chain brake when repositioning.
Tip: Keep the chain away from your body at all times. - 6
Maintain steady operation
Maintain smooth throttle control, monitor chain speed, and back off if the wood pinches. Stop cutting if you hear abnormal noises or see excessive vibrations.
Tip: Pause to clear wood and re-check chain tension if needed. - 7
refuel and cool-down
Refuel only when the saw is off and cool. Wipe away spills and store the saw safely after use. Clean the air intake and cooling fins to prevent overheating.
Tip: Never refuel a hot saw. - 8
Post-work checks and storage
Inspect chain, bar, and screws for wear; clean debris; and store with chain brake engaged. Document any issues that arise for future maintenance.
Tip: Keep the storage area dry and secure.
FAQ
What fuel mix does the stihl ms 291 require?
Use fresh gasoline with the two-stroke oil ratio specified in the owner’s manual. Do not improvise fuel mixes, as incorrect mixtures can damage the engine.
Use the manual-recommended fuel mix; avoid improvised ratios to protect the engine.
Is the stihl ms 291 suitable for homeowners?
Yes, the stihl ms 291 is designed for homeowners, DIY tasks, and professional maintenance. It balances power and portability for common tasks like firewood and storm cleanup.
Yes, it’s suitable for homeowners and DIY work with proper safety.
How do I tension the chain on the stihl ms 291?
Follow the user manual to adjust chain tension when the engine is off and the chain brake engaged. A properly tensioned chain reduces derailment and improves cutting efficiency.
With the engine off and brake on, adjust tension according to the manual.
What basic maintenance should I perform after each use?
Clean the air filter, wipe down the exterior, check the bar and chain for wear, and ensure the chain brake system remains ready. Store the saw safely.
Clean, inspect, and store the saw securely after use.
How can I avoid kickback on the stihl ms 291?
Maintain proper stance, keep the chain sharp, avoid touching the upper tip of the bar, and use the chain brake when adjusting or repositioning.
Stand firm, keep the bar sharp, and never cut with the tip.
What safety gear is essential for operation?
Wear a helmet with face shield, hearing protection, cut-resistant pants, gloves, and steel-toed boots to protect against debris and accidental contact.
Wear full PPE including helmet, eye and ear protection, and cut-resistant clothing.
Can I use aftermarket parts with the stihl ms 291?
For safety and warranty reasons, use manufacturer-approved parts and accessories designed for the stihl ms 291.
Stick to approved parts to protect performance and warranty.
Watch Video
The Essentials
- Operate the stihl ms 291 safely with full PPE.
- Follow manufacturer fuel and lubrication guidance.
- Keep the chain sharp and tensioned for clean cuts.
- Maintain a routine maintenance schedule to extend life.
- Store and transport the saw safely to prevent damage.
