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Yamakoyo YK550 User Manual

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41 pages
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Table of Contents

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Yamakoyo YK550 Specifications

General IconGeneral
BrandYamakoyo
ModelYK550
CategoryEngine
LanguageEnglish

Summary

Welcome and Safety Information

Hazard Symbols Explained

Defines DANGER, WARNING, CAUTION, NOTICE, and NOTE symbols for safe operation.

Engine Safety

Owner Responsibilities and Key Hazards

Details user duties and crucial hazards like refueling, exhaust, and CO.

Component and Control Locations

Engine Part Identification

Labeled diagrams identifying key engine parts and controls.

Engine Controls

Fuel Valve, Throttle, and Choke

Explains operation of fuel valve, throttle, and choke levers.

Engine Switch and Starter

Details ignition switch and recoil starter mechanism.

Pre-Operation Inspection

General Checks and Fluid Levels

Covers checking engine condition, oil, air filter, and fuel before operation.

Operating the Engine

Starting, Stopping, and Speed Control

Step-by-step guide for starting, stopping, and setting engine speed.

Engine Maintenance

Importance, Safety, and Schedule

Covers maintenance benefits, safety, and the service schedule.

Refueling and Fuel System

Guidance on refueling, fuel types, and sediment cup cleaning.

Oil and Filter Servicing

Procedures for checking oil, changing oil, and servicing the air filter.

Spark Plug and Idle Speed

Steps for spark plug maintenance and adjusting engine idle speed.

Storage and Transporting

Engine Storage Preparation

Comprehensive steps for preparing the engine for long-term storage.

Fuel Management for Storage

Procedures for adding fuel stabilizer or draining fuel for storage.

Transporting the Engine

Precautions and steps for safely moving the engine.

Troubleshooting

Engine Not Starting Issues

Common causes and solutions for engine starting problems.

Engine Power Issues

Identifies reasons for reduced engine power and their solutions.

Technical and Consumer Information

Technical Details and Battery

Covers serial number, battery connections, and remote linkage.

Altitude, Fuels, and Emissions

Information on high altitude, oxygenated fuels, and emission control.

Tune-up Specs and Publications

Details engine tune-up specifications and available publications.

Specifications

Model Specifications Table

Comprehensive table detailing technical data for various engine models.

Wiring Diagrams

Electric Start System Wiring

Illustrates electrical connections for engines equipped with electric starting.

Non-Electric Start Wiring

Shows wiring for engines without electric start, including oil alert system.

Optional Parts

Battery Specifications

Specifies voltage and amperage requirements for optional batteries.

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