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Sym Mio 50 User Manual

Sym Mio 50
215 pages
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Mio 50 / 100
SERVICE MANUAL
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HOW TO USE THIS MANUAL
CONTENTS
Mechanism Illustrations

Table of Contents

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Sym Mio 50 Specifications

General IconGeneral
Fuel SystemCarburetor
Front SuspensionTelescopic Fork
Rear BrakeDrum
IgnitionCDI
Engine Type4-Stroke
Cooling SystemAir Cooled
TransmissionAutomatic

Summary

Forward

How To Use This Manual

Navigation and Buttons

Explains the function of navigation buttons for accessing manual sections.

Mechanism Illustrations

General Information

Symbols and Marks

Explains symbols used for service and safety indications within the manual.

General Safety Precautions

Outlines critical safety guidelines for vehicle operation and maintenance.

Service Precautions

Details essential procedures and warnings for performing maintenance tasks correctly.

Specifications

Lists detailed technical specifications for the vehicle models, including dimensions and performance.

Torque Values

Provides essential torque specifications for various fasteners and components during assembly/disassembly.

Trouble Diagnosis

Offers diagnostic flowcharts and probable causes for common engine issues.

Maintenance Information

Precautions in Operation

Lists operational precautions to be followed before commencing maintenance or service procedures.

Periodical Maintenance Schedule

Provides a comprehensive schedule for routine maintenance tasks at specified intervals.

Lubrication System

Operational Precautions

Lists essential precautions for lubrication system maintenance operations.

Engine Oil

Details procedures for checking, replacing, and managing engine oil levels and quality.

Gear Oil

Explains the inspection and replacement process for gear oil.

Fuel System

Operational Precautions

Outlines critical safety and operational precautions when working with the fuel system.

Carburetor

Details the removal, disassembly, and installation procedures for the carburetor.

Idle Speed Adjustment

Guides on adjusting idle speed and air-fuel mixture for optimal engine performance.

Engine Removal and Installation

Operational Precautions

Lists essential precautions for engine removal and installation procedures.

Engine Removal

Provides a detailed step-by-step guide for safely removing the engine from the vehicle frame.

Cylinder Head and Valve

Operational Precautions

Lists essential precautions for cylinder head and valve servicing.

Troubleshooting

Offers diagnostic guidance for engine performance issues related to the cylinder head and valves.

Cylinder Head Removal

Details the step-by-step process for removing the cylinder head from the engine.

Valve Clearance Adjustment

Guides on measuring and adjusting valve clearance for optimal engine operation.

Cylinder and Piston

Operational Precautions

Lists essential precautions for cylinder and piston servicing.

Piston Ring Installation

Guides on correctly installing piston rings onto the piston to ensure proper sealing.

V-Belt Drive System and Kick Starter

Drive Belt

Covers the removal, inspection for wear, and installation of the drive belt.

Clutch / Driven Pulley

Explains the disassembly, inspection, and assembly of the clutch and driven pulley components.

Final Drive Mechanism

Operational Precautions

Lists precautions for working with the final drive mechanism.

Bearing Replacement

Explains the procedure for replacing bearings in the final drive mechanism.

Alternator and Starting Clutch

Alternator Removal

Provides detailed steps for removing the alternator assembly from the engine.

Starting Clutch

Covers the removal, inspection, and installation of the starting clutch assembly.

Crankcase and Crankshaft

Disassembly of Crankcase

Details the steps required to disassemble the crankcase.

Crankshaft Inspection

Guides on inspecting the crankshaft for wear, run-out, and bearing condition.

Body Cover

Body Cover Disassembly Sequence

Outlines the correct sequence for disassembling various body covers.

Front Cover Removal and Installation

Details the removal and installation procedure for the front cover.

Handle Cover Removal and Installation

Covers the removal and installation of the handle covers.

Brake System

Operational Precautions

Lists important precautions for brake system maintenance and operation.

Brake Fluid Replacement and Air-Bleed

Details the procedure for replacing brake fluid and bleeding the hydraulic system.

Brake Master Cylinder

Covers the removal, inspection, and assembly of the brake master cylinder.

Steering, Front Wheel, and Front Cushion

Operational Precautions

Lists important precautions for steering and front wheel service.

Front Wheel Removal and Installation

Covers the removal, inspection, and installation of the front wheel.

Front Fork and Steering Column

Explains the removal and installation of the front fork and steering column assembly.

Rear Wheel and Rear Cushion

Operational Precautions

Lists important precautions for rear wheel and cushion service.

Rear Wheel Removal and Installation

Covers the inspection, removal, and installation of the rear wheel.

Electrical Equipment

Operational Precautions

Lists precautions for working with the vehicle's electrical system.

Charging System

Covers battery checks, charging procedures, and troubleshooting for the charging system.

Ignition System

Guides on checking and troubleshooting the ignition system components.

Start System

Details the inspection and troubleshooting of the starting system and its components.

Light / Bulb Replacement

Explains the procedure for replacing headlight bulbs and adjusting the beam.

Emission Control System

Fuel Evaporative Emission Control System (E.E.C.)

Details the construction, operation, and diagnosis of the Fuel Evaporative Emission Control System.

Countermeasure for Emission Pollutants Not Within Standard as In Idle Speed (4-Stroke Engine)

Provides a flowchart for troubleshooting emission issues at idle speed.

Electrical Diagram

HU05U Electrical Diagram

Provides the wiring diagram for the HU05U model.

HU10U/W Electrical Diagram

Provides the wiring diagram for the HU10U/W model.

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