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Sym Citycom 300i Service Manual

Sym Citycom 300i
270 pages
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DK Version 1.0 2009
Citycom.300i
SERVICE MANUAL
FOREWORD
HOW TO USE THIS MANUAL
CONTENTS
SERIAL NUMBER

Table of Contents

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Sym Citycom 300i Specifications

General IconGeneral
Engine Type4-stroke, Single Cylinder
Displacement278.3 cc
Fuel SystemElectronic Fuel Injection
Cooling SystemLiquid Cooled
Front SuspensionTelescopic Fork
Rear SuspensionDual Shock Absorbers
Front Tire110/70-16
Rear Tire140/70-16
Seat Height800 mm
TransmissionCVT
Front BrakeDisc
Rear BrakeDisc
Fuel Capacity10 liters

Summary

GENERAL INFORMATION

General Safety

Details safety precautions for handling gasoline, engine oil, and hot components.

Service Precautions

Provides guidelines on using genuine parts, tools, and proper assembly procedures.

Torque Values

Provides standard and engine-specific torque values for fasteners.

Troubles Diagnosis

Offers diagnostic procedures for engine starting and running issues.

Maintenance Information

Periodical Maintenance Chart

Schedule for regular inspection, cleaning, adjustment, and lubrication.

Valve Clearance

Explains the procedure for checking and adjusting valve clearance.

Cylinder Compression Pressure

Outlines the method for measuring cylinder compression pressure.

Disk Brake System

Covers inspection and maintenance of the disk brake system, including fluid.

Brake Fluid

Details on checking, filling, and replacing brake fluid.

LUBRICATION SYSTEM

Engine Oil

Detailed steps for engine oil change, including capacity and torque.

Gear Oil

Instructions for checking and changing gear oil, including capacity.

Fuel Injection System

Fault Diagnosis

Step-by-step guide for diagnosing EFI circuit issues.

Troubleshooting Table

A comprehensive table for diagnosing abnormal phenomena in the EFI system.

Removal & Installation of Engine

Engine Removal

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

Installation of Engine

Instructions for installing the engine back onto the frame.

Cylinder Head / Valve

Troubleshooting

Diagnoses issues related to low/high compression and noise in the cylinder head.

Cylinder Head Removal

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

Valve Clearance Adjustment

Step-by-step guide for adjusting valve clearance.

Cylinder / Piston

Cylinder and Piston Removal

Detailed steps for removing the cylinder and piston assembly.

V-Belt Driving System

Final Drive Mechanism

Disassembly of Final Drive Mechanism

Step-by-step instructions for disassembling the final drive.

Re-Assembly of Final Drive Mechanism

Steps for reassembling the final drive mechanism.

AC Generator / Starting Clutch

Precautions in Operation

General precautions for AC generator and starter motor service.

Right Crankcase Cover Removal

Steps for removing the right crankcase cover and related components.

AC Generator Removal

Procedure for removing the AC generator coil.

Flywheel Removal

Instructions for removing the flywheel and starter reduction gear.

Crankcase / Crank

Crankcase Disassembly

Step-by-step guide for disassembling the crankcase.

Crankcase Reassembly

Instructions for reassembling the crankcase.

Cooling System

Cooling System Fault Elimination

Flowchart for diagnosing and eliminating cooling system faults.

Coolant Replacement

Detailed steps for replacing the coolant and bleeding air bubbles.

Brake System

Brake Fluid Replacement

Detailed procedure for replacing brake fluid and bleeding the system.

Steering / Front Wheel / Front Cushion

Rear Wheel / Rear Fork / Rear Cushion

Electrical System

Trouble Diagnosis

Common electrical system faults and their causes.

Ignition System

Explains the ignition system circuit and ECU pin configuration.

Electrical Diagram

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