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Wacker Neuson WM 90

Wacker Neuson WM 90
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www.wackergroup.com
Engine
WM 90
REPAIR MANUAL
0160157en 002
0207
0160157EN

Table of Contents

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Wacker Neuson WM 90 Specifications

General IconGeneral
BrandWacker Neuson
ModelWM 90
CategoryEngine
LanguageEnglish

Summary

Foreword

Operating and Parts Information

Information on machine operation, parts, and manual usage.

Emission Control System Information

Tampering and Altering Emission Controls

Actions that constitute tampering with emission control systems.

Problems Affecting Emissions

Symptoms indicating potential emission issues.

Safety Information

General Operating Safety

Guidelines for safe operation of the machine.

Internal Combustion Engine Safety

Specific safety advice for ICE operation and fueling.

Service and Maintenance Safety

Safety procedures for maintenance and repair tasks.

Machine Safety Labels

Explanation of various safety and operating labels on the machine.

Technical Data

Engine Specifications

Lists key technical specifications for the WM 90 engine.

Engine Performance Characteristics

Details engine performance curves and data.

Theory of Operation

Recommended Fuel and Starting Procedures

Specifies fuel type and steps to start the engine.

Key Engine Component Descriptions

Detailed explanation of major engine components.

Maintenance Procedures

Periodic Maintenance Schedule

Outlines regular maintenance tasks and intervals.

Air Cleaner Servicing

Procedures for cleaning and maintaining the air cleaner.

Fuel System Maintenance

Steps for servicing the fuel filter and tank.

Disassembly Procedures

Removing Engine from Rammer

Detailed steps to remove the engine from the rammer unit.

Engine Internal Disassembly

Steps to remove ignition coil, flywheel, and cylinder head.

Piston and Crankshaft Removal

Steps for removing connecting rod, piston, and crankshaft.

Reassembly Procedures

General Reassembly Notes

General guidelines and precautions for engine reassembly.

Crankshaft and Piston Assembly

Steps for installing crankshaft, piston, and connecting rod.

Valve Train Reassembly and Adjustment

Reassembling rocker arms, push rods, and adjusting valve clearances.

Engine Reinstallation and Break-in

Steps to reinstall the engine and perform break-in operation.

Sub Systems Overview

Ignition System (Magneto)

Describes the breakerless flywheel magneto ignition system.

Automatic Decompression System

Explains the system for easier engine starting.

Diaphragm Carburetor Operation

Details the function and components of the carburetor.

Recoil Starter Service

Starter Disassembly and Inspection

Steps for disassembling and inspecting the recoil starter.

Starter Rope Replacement

Procedure for replacing the starter rope.

Clearance Data and Limits

Measurement Terminology and Tables

Explains terms and standards for part measurements.

Troubleshooting Engine Problems

Starting and Fuel System Issues

Guide to diagnosing and resolving starting and fuel system issues.

Ignition, Compression, and Misfire Issues

Diagnosing and resolving ignition, compression, and misfire problems.

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