Stihl MS 291 Service Workshop Manual

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Stihl MS 291 Service Workshop Manual for the MS291 chainsaw. View free page images online or download full PDF with images, diagrams and information. Print or save to any suitable device.
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Stihl MS 291 Service Workshop Manual Repair

Stihl MS 291 Service Workshop Manual for the Repair and service of MS 291 chainsaws. The PDF manual has diagrams and detailed information to troubleshoot and repair the chainsaw.

View free page images online or download a full digital PDF that you can easily save, print or view on all devices from mobiles, tablets or computers.

What’s covered in the Stihl MS 291 Workshop Manual

PDF manuals cover every subject with detailed descriptions of repair and servicing methods specific to the MS 291 saw including troubleshooting the carburetor, clutch, Chain Drive, Chain Lubrication and Tensioner, fuel, Starter and the ignition system. Complete disassembly and assembly of all parts are described in detail.

Detailed Description of the Stihl MS 291 Workshop Manual

Specifications, Troubleshooting Chart, Carburetor removal and installation, Carburetor Repair, Clutch, Chain Brake, Pistons, Engine, Ignition system, Starter, Servicing, Controls, Fuel System, Attachments and Special Tools.

This manual helps you with the information you need quickly and easily.

Stihl MS 291 Chainsaw Specifications

Replace carburetor with Zama carb: Zama C1Q-S252, C1M-S246 and C1Q-S252

MS 291 ENGINE

STIHL single-cylinder two-stroke engine
DISPLACEMENT: 3.39 cu. in. (55.5 cm3)
Bore: 1.85 in. (47.0 mm)
Stroke: 1.26 in. (32 mm)
ENGINE POWER: 3.8 hp (2.8 kW) at 9,500 rpm
Idle speed: 2800 rpm
Maximum permissible engine speed with guide bar and chain: 13,000 rpm
Magneto ignition system Electronic (breakerless)
Spark plug (resistor type): Bosch WSR 6 F, NGK BPMR 7 A
Electrode gap: 0.02 in (0.5 mm)
All position diaphragm rotor with an integral fuel pump
Fuel capacity: 16.9 fl.oz (0.50 l)
Speed-controlled oil pump with reciprocating piston
Oil tank capacity: 8.1 fl.oz (0.24 l)
Weight (without bar and chain): 12.3 lbs. (5.6 kg)

MS 291 Cutting attachments
Rollomatic E guide bars

Reduced kickback STIHL guide bars (with green label)
Bar lengths: 40, 45, 50 cm (16, 18, 20 in.)
Pitch: .325″ (8.25 mm)
Groove width: 1.6 mm (0.063 in.)
Sprocket nose: 11-tooth

Saw chain .325″

Low kickback STIHL saw chain (with green label)
Rapid Micro 3 (26 RM3) Type 3634
Pitch: .325″ (8.25 mm)
Drive link gauge: 1.6 mm (0.063 in)

Chain sprocket

7-tooth for .325″ (spur sprocket)

Replace spark plug with Bosch WSR 6 F or NGK BPMR 7 A

Stihl MS 291 Service Workshop Manual PDF

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