Stihl MS 660 Operator Manual


Stihl MS 660 operator manual and user instructions. PDF view online or download and print the MS660 chainsaw instructions. Clear, concise and easy to understand.

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Stihl MS 660 Operator Manual

Stihl MS 660 operator manual for the MS 660 chainsaw. PDF download operator instructions on how to use and maintain the Stihl MS 660 (MS660) chainsaw. Clear and concise with easy to understand diagrams detailing the safety, operating, maintaining and storing of the chainsaw.

Stihl MS 660 Chainsaw Operator Manual Contents

Safety, cutting attachment, bar and chain, fuel, oil, chain brake, stopping/starting engine, adjusting carburetor, air filter, engine management, spark plug, chain sprocket, sharpening the chain, maintenance and care, specifications.


This is the Stihl MS 660 User Guide, owner manual, instructions.

More information for the service and repair of the Stihl MS 660 chainsaw can be found in any service workshop manual, parts list, carburetor manual and any technical notes available for PDF download or online viewing on this website. Also check out any questions and answers, articles or the full specifications pages for the Stihl MS 660 chainsaw.

Adjusting Stihl MS 660 Carburetor

Stihl MS 660 chainsaw carburetor guide- The carburetor has been factory adjusted to provide the optimal engine air/fuel flow. Instructions for standard settings to adjust the idling screw, turning either clockwise or counter clockwise. Learn how to set the idling screw correctly if the engine is cutting out or idling incorrectly. Learn how to check the spark plug for a good electrical spark, cleaning or replacing if required. Air filter cleaning and replacement is described in the operator manual. Detailed carburetor PDF manuals are available from this website.

Stihl MS 660 Chainsaw Specifications


Single cylinder two-stroke engine

Engine Type single-cylinder two-stroke
Engine Capacity: 91.6cc, 5.59cu. in
Cylinder Bore: 54mm, 2.13in
Piston Stroke: 40mm, 1.57in
Ignition Type: Electronic (Breakerless) magneto
Spark Plug Type: Bosch WSR 6 F or NGK BPMR 7 A
Spark Plug Gap: 0.5mm, 0.02in
Carburetor Type: All position diaphragm type with the built-in fuel pump
Fuel Tank Capacity: 0.825 litre
Fuel Mixture: 50:1 with Stihl two-stroke air-cooled engine oil
Weight: 7.3kg (16.1lb)
Chain Lubrication Type: Automatic oil pump
Oil Tank Capacity: 0.360 litre

Replace Carburetor with Walbro Carburetor- Models:
Walbro WJ-67 (MS660, MS660W and MS660 Magnum) , Walbro WJ-69 (MS660 Arctic and MS660 Magnum R) , Walbro WJ-76 (MS660 Magnum BR).

Stihl MS 660 Operator Manual PDF

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