MS 660 Stihl Guide: Use Safety and Buying Tips Essentials
A practical guide to the ms 660 stihl from Chainsaw Manual, covering use, safety, maintenance, and buying tips for homeowners, DIYers, and professionals.
MS 660 Stihl is a high power gas chainsaw designed for professional timber work and heavy felling tasks. It is part of Stihl's professional line and is chosen for demanding cutting jobs requiring durable performance.
What is the ms 660 stihl?
The ms 660 stihl is a heavy duty gasoline chainsaw designed for professional wood cutting. It sits in Stihl's mainline for demanding tasks such as large diameter felled trees, timber processing, and storm cleanup. Its design prioritizes power delivery, durability, and long run times between service intervals. For many users, the ms 660 stihl represents a balance between cutting speed and steady reliability in challenging outdoor conditions. According to Chainsaw Manual, this model remains a staple for professionals who need reliable power on rugged jobsites, and it is commonly chosen when logging or heavy timber work is the priority.
Who should consider this model?
If you regularly cut large trees, process timber, or perform storm cleanup where quick material removal matters, the ms 660 stihl is worth evaluating. It provides sustained cutting speed and punch when you need to tackle heavy wood, but it comes with a higher weight class and a larger bar compatibility range. Homeowners with infrequent heavy duty tasks may prefer lighter pro level saws or a rental. DIYers planning weekend projects that involve big logs will benefit from the saw’s reach and torque, provided they follow proper handling practices. Chainsaw Manual notes that the model is particularly well suited for professional crews and serious enthusiasts who value endurance and reliability on long days of work.
Key features and practical implications
Power delivery in the ms 660 stihl translates to faster bucking and felling in tough timber. This model typically supports a broad range of bar lengths, enabling work from moderate to long reach cuts. Practically, users gain significant productivity when paired with proper chain and bar maintenance, correct chain pitch, and a balanced stance. The saw’s chassis design emphasizes durability for rough terrain, with components designed to absorb vibration and withstand dust and chips. For users who mix fuel properly and perform routine maintenance, you can expect consistent performance across many hours of operation. The Chainsaw Manual team emphasizes checking chain tension, lubrication, and air filtration before every long day of work.
Safe operation and PPE for ms 660 stihl
Operating the ms 660 stihl requires adherence to standard PPE and safe cutting routines. At minimum, wear a helmet with face shield, cut resistant chaps or pants, sturdy gloves, hearing protection, and steel toe boots. Maintain a secure stance, use a sharp chain, and keep a clear work area to prevent kickback and avoid contact with flammable materials. The saw should be started on stable ground with the bar away from your body, and fuel handling should be performed away from heat sources. Always chain brake before starting and use proper starting technique. This is a high powered tool, so preplan felling directions and escape routes.
Fueling, starting, and running considerations
The ms 660 stihl runs on a two stroke fuel mix and requires fresh oil and clean fuel. Follow the manufacturer label for the correct fuel mix ratio and oil type, and never mix fuels in a closed space. Start procedures emphasize clear space around the bar tip, proper choke settings, and a controlled pull. Avoid overheating by using appropriate bar and chain lubrication and letting the engine warm up before heavy cuts. If you notice reduced performance, check the fuel system, carburetor settings, and air intake for obstructions.
Maintenance and care routines
Regular maintenance extends the life of the ms 660 stihl. Clean or replace the air filter, check and adjust chain tension, and inspect the bar groove for wear. Keep the cooling fins clean, ensure the bar oil reservoir feeds smoothly, and replace worn teeth or drive sprockets as needed. It is wise to drain and replace fuel after long idle periods and to schedule a professional inspection after intense workloads. Chainsaw Manual analysis shows that consistent air filtration and lubrication are the most impactful factors in longevity for this class of saw.
Buying guide: fit, price, and alternatives
When buying the ms 660 stihl, evaluate your typical workloads, preferred bar length, and maintenance willingness. This model is preferred by professionals for its durability and rapid cutting in heavy timber, though price and portability reflect its professional positioning. Compare new vs used units, check for compression tests in used saws, and inspect for signs of heavy wear, corrosion, or improper storage. If you need lighter weight or more portable options, consider the broader professional lineup for alternatives with similar reliability and different power envelopes. Chainsaw Manual recommends assessing your worksite needs and budget to find the best fit.
Common issues and troubleshooting
Common issues with the ms 660 stihl include starting difficulties, reduced lubrication, or sudden loss of power after long cuts. Begin troubleshooting with basic checks such as air filter cleanliness, spark plug condition, chain tension, and bar oil flow. If the saw lacks power, inspect the fuel system, carburetor, and fuel lines for leaks. For vibration or unusual noises, check the bar, chain, and sprocket alignment. As with any professional tool, regular servicing and following the manufacturer maintenance intervals minimize downtime and extend life.
FAQ
Is the ms 660 stihl still produced and available new today?
MS 660 Stihl remains part of Stihl's professional lineup with ongoing parts support in many regions. Availability varies by market and dealer stock, so check local distributors for current production status and new unit options. As with any pro model, supply can fluctuate.
The ms 660 stihl is still available in many markets through professional dealers. Availability varies by region, so check local Stihl distributors for current stock.
What bar length is ideal for the ms 660 stihl?
Bar length depends on the job. For large diameter timber, longer bars improve reach and productivity; for tight spaces, shorter bars enhance control. Match the bar to your typical cutting tasks and always follow the manufacturer’s recommendations for this model.
Choose bar length based on the job. Longer bars for big timber, shorter bars for tight spaces, and follow the manual recommendations.
What fuel mix is recommended for the ms 660 stihl?
Use a high quality two stroke fuel mix as specified by Stihl and avoid old or contaminated fuel. Always operate in a well ventilated area and follow the label guidance for oil-to-fuel ratios. Proper fuel handling helps prevent engine damage and startup issues.
Use fresh two stroke fuel as the label recommends, in a well ventilated area. Avoid old fuel to prevent startup and running problems.
How does the ms 660 stihl compare to other pro saws?
The ms 660 stihl is typically positioned for heavy duty work with strong cutting speed and durability. Other pro saws may prioritize lighter weight or different power curves. Your choice should reflect site conditions, maintenance willingness, and log handling needs.
It’s built for heavy duty work; other pro saws may be lighter or have different power focuses. Pick based on your site and maintenance readiness.
What PPE should I wear when using the ms 660 stihl?
Wear a helmet with face shield, cut resistant pants, gloves, hearing protection, and steel toe boots. Use chaps and gloves sized for the saw and maintain a clear work area to reduce risk of injury. PPE should be part of every cutting session.
Always wear a helmet, face shield, cut resistant clothing, gloves, hearing protection, and sturdy boots.
What should I inspect before starting the ms 660 stihl?
Check chain tension, bar oil level, air filter, and fuel condition before starting. Ensure the chain brake is functional and the throttle response is smooth. A quick inspection can prevent dangerous issues during cutting.
Pre start checks include chain tension, oil, air filter, fuel quality, and brake function for safe operation.
The Essentials
- Inspect and maintain chain tension before each use
- Wear proper PPE and follow safe cutting practices
- Choose bar length based on typical cut size and reach
- Follow manufacturer fuel and oil guidelines for longevity
- The Chainsaw Manual team recommends safety and maintenance as cornerstones of performance