Sym Joyride125 - User Manual

SERVICE MANUAL
FORWARD
HOW TO USE THIS
MANUAL
CONTENTS

Sym Joyride125 Specifications

General

Displacement	124.6 cc
Front Suspension	Telescopic Fork
Front Brake	Disc
Rear Brake	Drum
Fuel System	Carburetor
Engine Type	4-stroke, air-cooled
Bore x Stroke	52.4 mm x 57.8 mm
Starting System	Electric and kick start
Max Power	7.5 kW (10.2 PS) @ 8500 rpm

Summary

General Information

General Safety Precautions

Outlines crucial safety precautions for operating and maintaining the motorcycle.

Service Precautions

Details important guidelines and precautions for performing service and maintenance tasks.

Torque Values

Troubleshooting Engine Start Issues

Details common issues and probable causes for engine starting problems and their solutions.

Troubleshooting Engine Sluggishness

Addresses issues related to the engine running sluggishly or lacking power.

Troubleshooting Clutch, Driving, and Driving Pulley Issues

Addresses problems related to the clutch, drive face, and driven pulley.

Maintenance Information

Periodical Maintenance Schedule

Outlines a schedule for routine maintenance tasks based on mileage or time intervals.

Spark Plug Inspection and Replacement

Valve Clearance Adjustment

Provides detailed instructions for checking and adjusting valve clearance.

Carburetor Idle Speed Adjustment

Ignition System Check

Cylinder Compression Pressure Test

Details the procedure for measuring cylinder compression pressure.

Driving Belt Inspection and Replacement

Brake System Checks (Front;Rear Disc)

Brake Fluid Level and Filling

Explains how to check the brake fluid level and refill the reservoir.

Brake System Air Bleed Operation

Guides on performing the air bleeding procedure for the hydraulic brake system.

Brake Lining Wear Inspection

Lubrication System

Troubleshooting Lubrication Issues

Provides diagnostic steps for common lubrication system issues.

Engine Oil Service

Details procedures for checking, changing, and refilling engine oil.

Fuel System

Precautions in Operation

Pilot Screw Adjustment

Engine Removal and Installation

Engine Removal Procedures

Provides step-by-step instructions for safely removing the engine.

Engine Mounting Bracket Service

Engine Installation Procedures

Explains the process for reinstalling the engine back into the motorcycle.

Cylinder Head and Valve Service

Troubleshooting Cylinder Head and Valve Issues

Diagnoses causes of low compression, high compression, and noise in the cylinder head.

Cylinder Head Removal

Provides step-by-step instructions for removing the cylinder head assembly.

Cylinder Head Disassembly

Guides on how to disassemble the cylinder head components.

Valve Stem Replacement

Details the procedure for replacing valve stems.

Valve Seat Inspection and Service

Explains how to inspect and service valve seats, including grinding.

Cylinder Head Reassembly

Guides on reassembling the cylinder head components.

Cylinder Head Installation

Details the process of installing the cylinder head back onto the engine.

Cylinder and Piston Service

Precautions in Operation

Lists precautions for cylinder and piston service.

Troubleshooting Cylinder;Piston Issues

Diagnoses issues causing low compression, knock, noise, or overheating.

Cylinder Removal

Guides on the step-by-step removal of the cylinder from the engine.

Piston Removal

Details the procedure for removing the piston and piston pin.

Piston Ring Installation

Explains how to correctly install piston rings onto the piston.

Piston Installation

Guides on installing the piston into the cylinder, ensuring correct orientation.

V-Belt Driving System and Kick Starter

Maintenance Description, Torque Values, and Tools

Troubleshooting Drive System Issues

Diagnoses problems like the motorcycle not moving or poor performance.

Driving Belt Service

Covers V-belt removal, inspection for wear, and correct installation.

Drive Face Service

Driven Pulley Installation

Clutch Outer;Driven Pulley Disassembly

Explains how to disassemble the clutch outer and driven pulley assembly.

Clutch Weight Replacement

Driven Pulley Bearing Replacement

Provides instructions for replacing the driven pulley bearing.

Final Driving Mechanism

Precautions, Torque Values, Tools, and Troubleshooting

Lists precautions, torque values, tools, and common troubleshooting for the final drive.

Disassembly and Inspection Procedures

Guides on the step-by-step disassembly and inspection of the final drive.

Bearing Replacement

Provides instructions for replacing bearings in the final drive mechanism.

Alternator and Starting Clutch System

Precautions, Specifications, Torque Values, and Tools

Lists precautions, specs, torque values, and tools for the alternator and starting clutch.

Component Removals

Starting Clutch Service

Covers starting clutch removal, inspection, and disassembly.

Component Installations

Guides on reinstalling starting clutch components, gears, and the flywheel.

Crankshaft and Crankcase Service

General Information and Precautions

Provides an overview and precautions for crankshaft and crankcase service.

Service Data and Troubleshooting

Crankcase Disassembly

Guides on the step-by-step disassembly of the crankcase.

Crankshaft Removal

Crankshaft Inspection

Crankcase Assembly

Guides on installing bearings and assembling the crankcase halves.

Cooling System Maintenance

General Information and Specifications

System Tests and Coolant Change

Water Pump Service

Thermostat Service

Brake System Service

Maintenance Description, Specifications, and Torque Values

Hydraulic Disc Brake Service

Air Bleed Procedure

Brake Caliper Service

Brake Disc Inspection

Brake Master Cylinder Service

Steering, Front Wheel, and Front Cushion System

Operational Precautions, Torque Values, and Tools

Troubleshooting Steering and Front Wheel Issues

Diagnoses issues like stiff steering, tilted handlebar, or wheel runout.

Steering Handlebar Removal

Front Wheel Service

Front Shock Absorber Removal

Front Fork;Steering Removal and Ball Race Replacement

Front Fork Installation

Rear Wheel, Brake, and Cushion System

Precautions, Service Data, and Torque Values

Rear Wheel Service

Rear Wheel Bearing Service

Rear Cushion Removal and Installation

Electrical System Service

Maintenance Data

Trouble Diagnosis

Covers diagnosis for no/low voltage, no spark, starter issues, and charging system faults.

Battery Service

Charging System Service

SCR and Charging Coil Inspection

Ignition System Service

Covers ignition circuit diagram and inspection of ignition coil, exciting coil, and pulse generator.

Starting System Service

Covers starting circuit diagram and starter relay inspection.

Starter Motor Removal

Switch and Horn Service

Fuel Gauge Service

Thermal Switch Testing

Sensor Testing

Digital Meters Trouble Diagnosis

Provides troubleshooting steps for issues with the digital meter display.

Wiring Diagram

LA12 W; LA15 W Wiring Diagram

Provides the comprehensive wiring diagram for LA12W and LA15W models.

LA18 W Wiring Diagram

Provides the comprehensive wiring diagram for the LA18W model.