Stihl MS 660 Service Workshop Manual


Stihl MS 660 workshop manual. View free page pictures online or download the whole PDF, which includes clear photographs, diagrams, and information. Print or download

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Stihl MS 660 Service Workshop Manual And Repair Guide

This Stihl MS 660 Workshop Manual provides comprehensive guidance for the repair and servicing of the Stihl MS660 chainsaw. The PDF manual comes with diagrams and precise information to diagnose and service the chainsaw. You can either access the free page images online or download the entire PDF file to be viewed on any compatible device.

Stihl MS 660 Service Manual PDF

View and download the Stihl MS660 Chainsaw Manual. The contents of the PDF manual cover all topics with detailed explanations of the repair and maintenance processes specifically for the MS 660 chainsaw, including troubleshooting the carburetor, clutch, fuel, and the ignition system. A complete disassembly and assembling of all components are described in detail.

Stihl MS 660 Service Workshop Manual Contents

Introduction, Specifications, Troubleshooting Attachments, Clutch, Chain Brake, Engine, Ignition system, Starter, Servicing, Controls, Fuel System, Special Tools.

Stihl MS MS 660 Chainsaw Specifications

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

Displacement 91,6 cm³
Power output 5,2/7,1 kW/bhp
Weight 1) 7,4 kg
Power-to-weight ratio 1,4 kg/kW
Sound pressure level 2) 101 dB(A)
Sound power level 3) 114 dB(A)
Vibration level left/right 4) 7/7 m/s²
Saw chain pitch 3/8″
STIHL Oilomatic saw chain type Rapid Super (RS)


With a power-to-weight ratio of 1.4 kg/kW, it features a high engine power (power output of 5.2 kW) while being relatively lightweight (at 7.3 kg without bar/chain). Other notable aspects of the STIHL MS 660 include the anti-vibration system and a shock absorber called the ElastoStart.

The STIHL MS 660 also boasts a semi-automatic decompression valve that ensures effortless start-up. Its Ematic chain lubrication system guarantees great fuel economy by reducing bar oil consumption up to 50%.

Stihl MS 660 Service Workshop Manual PDF

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