FARMMAC F660VW 90cc 92cc 24/25 28 36 42 inch Gas Chainsaw
Key Features
91.6cc 2-Stroke Engine 5.0kW 6.7HP Professional Logging
Safety Assurance
40Inch/100cm Max Cut Dia Professional Logging
Upgrade Highlights
Decompression Easy-Start System
Equipped with a decompression valve and advanced easy-start system, the engine reduces starting resistance for smoother ignition. It typically fires up in just 3–5 light pulls, even in cold conditions, minimizing effort and strain. This design improves reliability, saves time on the job, and ensures quick, hassle-free starts every time.
Quick Chain Tension Adjust, Easy Clean Air Filter Cover for Simple Maintenance
Upgraded with a quick-release structure and quick-detach air filter cover for easier cleaning and maintenance, plus an upgraded side tension adjustment system for effortless chain tuning.
Upgraded Wrap-around Handle
Upgraded wrap-around handle with 180° reversible operation, allowing you to lock in the best logging angles and double your working efficiency.
Speed-Automatic Oil Pump
The speed-automatic oil pump delivers adaptive chain lubrication in real time, ensuring smooth operation with reduced friction and effective overheat protection. It maintains optimal cutting performance and greatly extends the service life of the chain and guide bar.
Product Comparison
Discover More Difference
FARMMAC F660VW 90cc 92cc 24/25 28 36 42 inch Gas Chainsaw
$341.99 USD
Neo-tec NS892 90cc 92cc 24/25 28 36 42 inch Gas Chainsaw
$342.99 USD
Neo-tec NS892V 92cc 25 28 36 42 inch High-performance Gas Chainsaw
$359.99 USD
F660VWUS
SKU
NS892FM
SKU
NS892V1US
SKU
2-Stroke
Engine Type
2-Stroke
Engine Type
2-Stroke
Engine Type
91.6cc
Displacement
91.6cc
Displacement
91.6cc
Displacement
5.0kW/ 6.7HP
Max Power
5.0kW/ 6.7HP
Max Power
5.0kW/ 6.7HP
Max Power
11000rpm
Maximum Engine Speed
with Cutting Attachment
with Cutting Attachment
11000rpm
Maximum Engine Speed
with Cutting Attachment
with Cutting Attachment
11000rpm
Maximum Engine Speed
with Cutting Attachment
with Cutting Attachment
2800rpm
Maximum Engine Speed
at Idle Speed
at Idle Speed
2800rpm
Maximum Engine Speed
at Idle Speed
at Idle Speed
2800rpm
Maximum Engine Speed
at Idle Speed
at Idle Speed
Pull Start
Start Type
Pull Start
Start Type
Pull Start
Start Type
FB 25:1 Fuel-Oil Mix Ratio,FD 40:1 Fuel-Oil Mix Ratio
Fuel to Oil Mix
FB 25:1 Fuel-Oil Mix Ratio,FD 40:1 Fuel-Oil Mix Ratio
Fuel to Oil Mix
FB 25:1 Fuel-Oil Mix Ratio,FD 40:1 Fuel-Oil Mix Ratio
Fuel to Oil Mix
🪵Professional Logging
Application
🪵Professional Logging
Application
🪵Professional Logging
Application
15 mins
Full-Load Running Time (Lab-Tested Reference)
15 mins
Full-Load Running Time (Lab-Tested Reference)
15 mins
Full-Load Running Time (Lab-Tested Reference)
Magnesium alloy
Crankcase Materials
Magnesium alloy
Crankcase Materials
Magnesium alloy
Crankcase Materials
Rubber Buffer
Shock Absorption System
Rubber Buffer
Shock Absorption System
Rubber Buffer
Shock Absorption System
Aluminum Wrap-Around Rubber Non-Slip Grip
Handle Bar
Aluminum Rubber Non-Slip Grip
Handle Bar
Aluminum Wrap-Around Rubber Non-Slip Grip
Handle Bar
Speed-Sensing Automatic Oil Pump
Oil Pump
Speed-Sensing Automatic Oil Pump
Oil Pump
Speed-Sensing Automatic Oil Pump
Oil Pump
7Tx 3/8
Sprocket type
7Tx 3/8
Sprocket type
7Tx 3/8
Sprocket type
40”/100cm
Max Cutting Diameter
40”/100cm
Max Cutting Diameter
40”/100cm
Max Cutting Diameter
25”，28”，36”，42”
Recommended Guide Bar Size
25”，28”，36”，42”
Recommended Guide Bar Size
25”，28”，36”，42”
Recommended Guide Bar Size
12 Month Consumer / 3 Month Commercial
Warranty
12 Month Consumer / 3 Month Commercial
Warranty
12 Month Consumer / 3 Month Commercial
Warranty
FAQS
Cold Start
- Add fuel (fuel mixing ratio: 25:1).
- Close the choke. If the machine is equipped with a primer bulb, press it 3–5 times until the bulb is filled with fuel.
- Pull the starter rope 3–5 times.
- After hearing two “coughing” sounds,
- Open the choke.
- Pull the starter rope to start the machine.
Hot Start
- Open the choke.
- Pull the starter rope to start the machine.
The issue may be caused by an incorrect fuel mixture, spark plug problems, or a clogged carburetor.
- Check whether the fuel mixing ratio is 25:1. If not, adjust the fuel mixture to 25:1.
- Check whether the fuel line is bent or blocked.
- Check whether the spark plug is sparking properly.
- Check whether the engine is flooded.
- Check whether there is a carburetor malfunction.
- Confirm whether the spark plug is producing a spark: Remove the spark plug, connect it to the ignition coil, and place the spark plug electrode in contact with a metal part of the machine. Pull the starter rope and observe whether the spark plug produces a spark during starting.
- Check the electrode gap. The correct gap is 0.5–0.7 mm (approximately the thickness of a credit card).
- Clean oil residue and debris from the surface of the spark plug.
- If the engine still does not start after completing the above steps, replace the spark plug with a new one.
- Check whether the high-voltage wire (ignition coil lead) is damaged.
- Remove the spark plug.
- Turn the machine upside down.
- Pull the starter rope.
- Drain the excess fuel from the cylinder.
- Remove the air filter.
- Use an air blower to remove dust or debris from the air filter.
- If it cannot be cleaned or has been used for a long time, replace the air filter.