Stihl 066 Repair Manual



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  1. This service manual contains detailed descriptions of all the typical repair and servicing procedures for this power tool. As the design concept of models MS 650 and MS 660 is almost identical, the descriptions and servicing procedures in this manual generally apply to both models. Differences are described in detail. You should make use of the.
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Description

Stihl 066 Chainsaw Service Manual

Stihl 066 Service Manual for the Stihl chainsaw. Repair the 066 (66 Magnum) chainsaw with this PDF workshop manual (SM). The manual has diagrams and accurate information as used by professional mechanics and repair shops to troubleshoot and repair the chainsaw.

View free page images online or download full PDF that you can print or view on any suitable device.

Stihl 066 Specifications

ENGINE DISPLACEMENT:91.6 ccm (5.58 cu. in.)
NUMBER OF CYLINDERS:1
CYLINDER BORE:54 mm
PISTON STROKE:40 mm
MANUFACTURER ADVERTISED H.P.:6.8 B.H.P.

MAXIMUM ENGINE RPM:13,000
IDLE RPM:2,500

The manuals have accurate service information and diagrams to make the entire repair process easy for you. Can be used as guides for other models as they may share key components such as motors. Parts List Manuals (IPL) and comprehensive carburetor Manuals also available on this website.

The Stihl 066 was rebranded and became the Stihl MS 660 which is still being used today. It has however gone through various updates over the years since its introduction in 1994.

Early 1994 – Thin cylinder base ( Red light etc) changed to “thick base”. Base screws changed from M6x20 to M6x25

Mid 1994 – Beefed up crank – Crankshaft BIG end changed from 12 to 13 roller pins from serial number 129 588 002. At the same time, the cylinder base gasket changed to rubber-coated Steel.

Early 1995 – OHSA (NOT EPA) forced the discontinuation of the Dual-port Magnum muffler from serial number 131 960 509. HP dropped to 7.2

Mid 1996 – decompression valve fitted on all 066 from serial number 131 960 509

Stihl 066 Repair Manual

Early 1996 – Poly flywheel installed and crankshaft bearing increased in size from 13.5 to 15mm from serial number 131 917 066

Early 1998 – shrouds and filter box changed from squared to “rounded ” type. Limiter caps on carbs and EPA labelling…

Early 2002 – Name changed from 066 to MS 660.

This is a full PDF workshop manual for the Stihl 066 chainsaw.

Stihl

Stihl 066 Parts

It will give you clear diagrams and all the information you need to repair or service your chainsaw.

Stihl 066 Service Manual Contents

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

The 066 PDF manual has very detailed diagrams and information as used by professional mechanics, technicians and repair workshops. The PDF manual is designed to get the information you need quickly and easily.

Heavy Equipment Repair Manual

Stihl 066 Service Manual pdf