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Stihl MS 181 User Manual

Stihl MS 181
102 pages
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STIH)
STIHL MS 171, 181, 211
2007-05
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Stihl MS 181 Specifications

General IconGeneral
Idle speed- RPM
Motor type2-stroke motor
Chain pitch3/8 \
Blade length400 mm
Product colorBlack, Grey, Orange
Chain tensionerYes
Motor speed (max)10000 RPM
Fuel tank capacity0.266 L
Engine displacement31.8 cm³
Power sourceGasoline
Sound power level112 dB
Vibration emission3.5 m/s²
Sound pressure level100 dB
Weight and Dimensions IconWeight and Dimensions
Weight43004300 g

Summary

Safety Precautions

Fuel Safety and Handling

Warns about gasoline flammability, handling, and fire hazards.

Technical Specifications

Tightening Torques

Troubleshooting Guide

Clutch Issues

Lists conditions, causes, and remedies for clutch problems.

Chain Drive & Brake Issues

Troubleshooting for chain sprocket wear, brake activation, and chain tension.

Ignition System Faults

Diagnosing rough running, misfires, irregular spark, and no spark.

Carburetor Performance Issues

Troubleshooting carburetor floods, poor acceleration, idle problems, engine stalls.

Engine Performance Issues

Addresses starting difficulties, low power, erratic running, overheating.

Clutch Assembly Service

Chain Brake System Service

Engine Component Service

Engine Leakage Testing

Explains how to perform vacuum and pressure tests to detect leaks.

Engine Removal and Installation

Instructions for removing and installing the entire engine assembly.

Ignition System Service

Ignition Module Service

Overview, testing, and replacement of the ignition module.

Ignition System Troubleshooting

Provides a flowchart for troubleshooting ignition system issues.

Rewind Starter Service

Rewind Spring Tensioning & Replacement

Guide for tensioning and replacing the rewind spring.

Master Control Lever Service

Chain Lubrication System Service

Fuel System Service

Carburetor Service Procedures

Steps for carburetor removal, installation, and leakage testing.

Carburetor Component Servicing

Instructions for metering diaphragm, inlet needle, fixed jet, valve jet, pump diaphragm.

Air Valve & Choke Shaft Service

Details for air valve and choke shaft removal and installation.

Throttle Shaft Service

Steps for throttle shaft and shutter removal and installation.

Carburetor Adjusting Screws & Settings

Identifies screws and covers basic/standard adjustment procedures.

Intake Manifold & Carburetor Carrier Service

Steps for intake manifold and carburetor carrier removal/installation.

Tank Vent & Fuel Pump Service

Testing, removal, and installation of tank vent and fuel pump.

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