Description

Stihl FS40 Petrol Strimmer

Reliable Petrol Power for Everyday Garden Work

If your cordless strimmer struggles with long grass, thicker patches, or uneven edges, you need more consistent power.

The Stihl FS40 Petrol Strimmer delivers reliable petrol performance, easy starting, and stronger cutting ability, making it a practical upgrade for homeowners who want dependable results without stepping into heavy-duty machines.

Available from Masseys – authorised Stihl dealer.

See all of our petrol strimmers or our range of Stihl strimmers.

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Quick Answers

What is the Stihl FS40 Petrol Strimmer?

The Stihl FS40 is a lightweight petrol grass trimmer with a 27.2 cc STIHL 2-MIX engine, designed for lawn edging, grass trimming, and light weed control. It offers more power and continuous runtime than cordless models, making it ideal for small to medium garden maintenance.

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Is the Stihl FS 40 worth it?

Yes. The FS 40 is worth it if you want more power than cordless strimmers without the weight of professional machines. It provides reliable starting, consistent performance, and enough cutting strength for regular garden maintenance and slightly tougher conditions.

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Who is the FS 40 best for?

• Homeowners with small to medium gardens
• Users upgrading from cordless tools
• Gardeners dealing with thicker grass or light weeds

Best for reliable, everyday petrol trimming.

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Stihl FS40 Specs

What are the Stihl FS40 specs?

• Engine Type: STIHL 2-MIX petrol engine
• Displacement: 27.2 cc
• Power Output: 0.7 kW / ~0.95 hp
• Weight (without fuel): 4.4 kg
• Fuel Tank Capacity: 0.34 litres
• Cutting Head: AutoCut C 6-2
• Shaft Type: Straight shaft
• Handle: Loop handle
• Sound Pressure Level: ~94 dB(A)
• Sound Power Level: ~108 dB(A)

👉 Balanced for power, usability, and reliability in domestic use.

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Key Features (And Why They Matter)

Why choose the Stihl FS40?

STIHL 2-MIX Engine

• Efficient fuel use
• Lower emissions than older 2-stroke designs

Result: Strong, reliable power with better efficiency.

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ErgoStart System

• Reduced effort pull-start
• Smooth ignition

Result: Easier starting, especially for beginners.

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Lightweight Design (4.4 kg)

• Easy to handle
• Less fatigue during use

Result: Comfortable for longer trimming sessions.

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Loop Handle Control

• Precise handling in tight areas

Result: Ideal for trimming around obstacles and edges.

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AutoCut C 6-2 Head

• Automatic line feed

Result: Continuous trimming without stopping.

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What Jobs Can the FS40 Handle?

Is the FS 40 good for grass and weeds?

Yes. The FS 40 is suitable for grass trimming, lawn edging, and light to medium weeds, making it ideal for regular garden maintenance.

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Best Uses:

• Lawn edging along borders
• Trimming around fences and trees
• Cutting longer grass
• Managing light weed growth
• Small to medium gardens

Not designed for heavy brush or dense overgrowth.

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FS40 Strimmer Review

How does the FS40 perform in practice?

The FS40 delivers consistent petrol power and reliable cutting performance, especially where cordless tools start to struggle. It’s easy to start, well-balanced, and capable of handling slightly tougher garden conditions without becoming difficult to use.

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Performance Highlights:

• More power than cordless alternatives
• Reliable for repeated use
• Good balance of weight and performance

Ideal for users needing dependable cutting strength.

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FS40 vs Other Strimmers

Stihl FS40 vs FS50

Short answer:
The FS50 offers slightly more power for tougher weeds, while the FS40 is lighter and easier to handle for general garden use. Sadly the FS50 has now been discontinued

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Key Differences:

• FS40:
  • Lighter (4.4 kg)
  • Easier handling
  • Ideal for regular maintenance
• FS50:
  • More powerful
  • Better for thicker weeds
  • Slightly heavier

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FS40 vs Cordless Strimmers

Is petrol better than cordless?

Petrol strimmers provide more power and unlimited runtime, while cordless models offer convenience and lower maintenance. For thicker grass or longer sessions, petrol is usually the better choice.

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Quick Comparison:

• Petrol (FS40):
  • More cutting power
  • No battery limits
• Cordless:
  • Quieter
  • Easier to maintain

Choose based on power vs convenience.

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Pros and Cons

Pros:

• Stronger than cordless strimmers
• Reliable petrol engine
• Easy starting system
• Lightweight for petrol
• Continuous runtime

Cons:

• Requires fuel mixing and maintenance
• Noisier than cordless tools
• Not suitable for heavy-duty clearing

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Maintaining a STIHL 2-MIX Engine

How do you maintain the FS 40 engine?

Proper maintenance ensures long-term performance and reliability. Use the Stihl service kit to maintain the engine. This includes spark plug, air filter and fuel filter. Always use a good quality 2-stroke oil. We recommend semi or fully synthetic.

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Key Maintenance Tips:

• Use correct fuel mix (50:1 petrol/oil ratio)
• Use high-quality 2-stroke oil
• Clean the air filter regularly
• Check spark plug condition periodically
• Empty fuel if storing long-term

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Why it matters:

• Improves engine lifespan
• Maintains performance
• Prevents starting issues

Simple maintenance keeps the FS40 running smoothly and reliably.

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Price & Value: Is the FS40 Worth It?

Is the FS40 good value?

Yes. It offers a reliable petrol upgrade over cordless tools at a reasonable price point.

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Common Buyer Questions:

Is it powerful enough?
Yes—for grass, edging, and light weeds

Why not cordless?
Petrol offers more consistent power

Is petrol worth it?
Yes—if you need more cutting strength

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It’s ideal for users needing dependable performance without complexity.

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Who Should Buy the FS40?

Ideal Users:

• Homeowners needing more power
• Users upgrading from cordless
• Medium-duty garden users

Best for consistent, reliable trimming performance.

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Why Buy from Masseys?

• Authorised Stihl dealer
• Genuine warranty
• Expert advice
• Trusted local support

Ensures peace of mind and long-term value.

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FAQ (People Also Ask Optimised)

Is the Stihl FS40 powerful enough?

Yes, the FS 40 is powerful enough for grass trimming, edging, and light weeds. It provides more consistent cutting performance than cordless models, making it suitable for regular garden maintenance.

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What is the difference between FS40 and FS50?

The FS50 offers slightly more power and is better for tougher weeds, while the FS40 is lighter and easier to handle for general use.

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Is petrol better than cordless strimmers?

Petrol strimmers offer more power and continuous runtime, while cordless tools are quieter and easier to maintain. Petrol is better for tougher conditions.

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Is the FS40 good for weeds?

Yes, it handles light to medium weeds effectively but is not designed for dense brush or heavy overgrowth.

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Is it suitable for beginners?

Yes, thanks to its easy starting system, manageable weight, and simple controls.

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Final Verdict

The Stihl FS40 Petrol Strimmer is a reliable, easy-to-use petrol strimmer that delivers more power than cordless alternatives without becoming heavy or complex.

It offers:

• Consistent cutting performance
• Easy operation
• Dependable petrol reliability

A smart choice for homeowners who want more power and fewer limitations.

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Ready to Upgrade Your Garden Tools?

Buy the Stihl FS 40 Petrol Strimmer from Masseys – authorised Stihl dealer.