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Sym GTS 250i Service Manual

Sym GTS 250i
275 pages
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GTS 250i / RV 250i
GTS 300i / JOYMAX 300i
SERVICE MANUAL
FOREWORD
HOW TO USE THIS MANUAL
CONTENTS
SERIAL NUMBER

Table of Contents

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Sym GTS 250i Specifications

General IconGeneral
BrandSym
ModelGTS 250i
CategoryScooter
LanguageEnglish

Summary

General Information

Safety Precautions

Discusses essential safety measures before performing any service.

Maintenance Information

Periodical Maintenance Schedule

Provides a schedule for regular maintenance checks and replacements.

Lubrication System

Oil Pump Service

Outlines the removal, disassembly, and inspection of the oil pump.

Fuel Injection System

EFI System Components Overview

Lists and illustrates the main components of the EFI system.

EFI System Operation Principle

Explains the functional principles of the EFI system's operation.

EFI Troubleshooting Procedures

Offers integrated troubleshooting steps for EFI system issues.

EFI Diagnostic Tool Usage

Explains how to use the EFI diagnostic tool for analysis and troubleshooting.

Removal & Installation of Engine

Engine Removal Procedure

Step-by-step instructions for removing the engine from the chassis.

Engine Installation Procedure

Step-by-step instructions for installing the engine onto the frame.

Cylinder Head / Valve

Cylinder Head Removal

Step-by-step guide for removing the cylinder head.

Cylinder Head Disassembly

Details the process of disassembling the cylinder head components.

Valve Clearance Adjustment

Procedures for measuring and adjusting valve clearance.

Cylinder / Piston

Cylinder / Piston Removal

Steps for removing the cylinder and piston.

Piston Ring Installation

Details the correct procedure for installing piston rings.

Piston Installation

Outlines the steps for installing the piston into the cylinder.

V-Belt Drive System

AC. Generator / Start Clutch

Crankshaft / Crankcase

Crankcase Disassembly

Step-by-step instructions for disassembling the crankcase.

Crankshaft Inspection

Details how to inspect the crankshaft for wear, run-out, and bearings.

Cooling System

Cooling System Diagnosis

Provides a flowchart for diagnosing cooling system issues.

Brake System

Brake System Troubleshooting

Lists common issues like soft, hard, uneven, or noisy brakes.

Brake Fluid Replacement / Air-bleed

Details how to replace brake fluid and bleed the hydraulic system.

Steering / Front Wheel / Front Cushion

Rear Wheel / Rear Fork / Rear Cushion

Electrical System

Electrical System Troubleshooting

Lists common problems and troubleshooting steps for the electrical system.