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KEEWAY ARN125 User Manual

KEEWAY ARN125
85 pages
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Scooter Service and Maintenance Manual
ARN125/150
C o p y r i g h t :
K E E WAY I N T E R N AT I O N A L D E V E L O P M E N T C O . , LT D .
FEB.2006

Table of Contents

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KEEWAY ARN125 Specifications

General IconGeneral
Displacement124.6 cc
Fuel SystemCarburetor
Front BrakeDisc
Rear BrakeDrum
Front Tire120/70-12
Rear Tire130/70-12
Front SuspensionTelescopic Fork
Width700 mm
Cooling SystemAir-cooled
TransmissionAutomatic
Engine TypeSingle Cylinder, 4-Stroke, 2-Valve

Summary

Basic Engine Terms

Ignition Timing Specifications

Explains ignition timing and provides specific values for an engine model.

Workshop Safety and Service Rules

General Workshop Safety Warnings

Provides safety precautions for handling tools, gasoline, and workshop environment.

Service Rules for Maintenance

Outlines essential rules for servicing and assembly, including part usage and lubrication.

Electrical Safety Guidelines

Cable Routing and Clamping Safety

Details safe practices for routing and securing electrical cables to prevent damage.

Joint Inspection and Cable Protection

Emphasizes inspecting joints and protecting cables in critical areas like turning positions.

Special Tools List for Engine Service

Cylinder Pressure Gauge

A gauge used to measure cylinder pressure for diagnostics.

Engine Removal and Installation

Engine Component Removal Procedure

Outlines the step-by-step process for removing engine components.

Engine Component Installation Procedure

Details the step-by-step process for installing engine components.

Engine Lubrication System

Engine Oil Flow Path

Describes how engine oil circulates through the engine for lubrication.

Valve Clearance Setup

Valve Clearance Setup Procedure

Step-by-step guide for setting the valve clearance on a cooled engine.

Cylinder Air Pressure Measurement

Measuring Cylinder Air Pressure (Step One)

Details the initial steps for measuring cylinder air pressure.

Diagnosing Pressure Issues (Step Two)

Provides diagnostic steps based on cylinder pressure changes after adding oil.

Carburetor Removal, Installation, and Adjustment

Carburetor Removal Procedure

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

Carburetor Installation Procedure

Step-by-step instructions for installing the carburetor onto the motorcycle.

Carburetor Adjustment Procedure

Step-by-step guide for adjusting idle speed and mixture ratio.

Carburetor Adjustment Notices

Important warnings regarding mixture ratio screw adjustment and throttle cable.

Front Absorber Working Principle

Front Absorber Working Principle

Details how the front absorber functions during compression and recovery strokes.

Front Absorber Compression Stroke

Describes the process occurring during the compression stroke of the front absorber.

Front Absorber Comeback Stroke

Explains the mechanism and damping during the comeback stroke.

Disc Brake System Operation

Disc Brake Principle

Explains the basic principle of hydraulic disc brakes.

Disc Brake Cylinder Operation

Describes how the cylinder operates to apply pressure to the brake caliper.

Brake System Inspection and Bleeding

Brake System Inspection Notices

General warnings and precautions for inspecting and handling brake system components.

Brake System Bleeding Procedure

Step-by-step guide for bleeding air from the hydraulic brake system.

Electronic System Components

Magneto (ACG) Structure and Installation

Describes the structure and installation of the Magneto ACG, including stator and coils.

CDI and Ignition System Testing

Spark Plug and Cap Testing

Instructions for testing spark plugs, caps, and ignition coils.

Composite Switch and Ignition Coil Testing

Procedure for testing composite switches and ignition coils.

Touching Off Coil Testing

Instructions for testing the resistance and continuity of the touching off coil.

Ignition Timing Test

Ignition Timing Test Procedure

Step-by-step guide to test and adjust ignition timing using a timing light.

Battery Inspection and Charging

Battery Voltage and Electrolyte Inspection

Guidelines for checking battery voltage, electrolyte, and identifying faulty batteries.

Battery Charging Precautions

Important notices and warnings regarding battery charging procedures and safety.

Important Electric Parameters

Ignition System Specifications

Provides specifications for spark plug, ignition timing, and ignition coil.

Pre-Delivery Inspection Checklist

Vehicle Pre-Delivery Inspection Steps

A comprehensive list of checks to perform before delivering the vehicle.

Periodic Maintenance Schedule

Maintenance Tasks by Mileage

A table outlining maintenance tasks based on mileage, including checks, lubrication, and replacements.

Permitted and Forbidden Practices

Forbidden Operations and Practices

Lists prohibited actions and practices to avoid damage or safety hazards.

Safe Driving Practices

Effective Braking Techniques

Instructions on how to apply brakes effectively and safely.

Vehicle Fault Diagnosis and Repair

Troubleshooting Engine Start Issues

Guides on diagnosing and fixing problems related to engine starting.

Troubleshooting Ignition System Faults

Diagnosing issues with spark plugs, coils, and ignition timing.

Troubleshooting Engine Operation Faults

Diagnosing why the engine won't start or stops soon after starting.

Troubleshooting Cylinder Air Pressure

Diagnosing low air pressure in the cylinder and related causes.

Troubleshooting Engine Power Issues

Diagnosing causes for reduced engine power, including brakes, tires, and carburetor.

Troubleshooting Ignition Timing and Clutch

Diagnosing problems with ignition timing, clutch slip, and engine overheating.

Troubleshooting Speed and Carburetor Issues

Diagnosing issues with speed, performance, carburetor settings, and ignition.

Troubleshooting Control and Steering Issues

Diagnosing difficulties with steering, wheel wobble, and scooter inclination.

Troubleshooting Fuel System Failures

Diagnosing fuel system issues preventing engine start and mix gas problems.

Troubleshooting Cylinder and Valve Issues

Diagnosing problems related to cylinder head, valves, pistons, and pressure.

Troubleshooting Engine Operation and Chain Issues

Diagnosing issues affecting engine operation, idle speed, and chain wear.

Troubleshooting Brake System Performance

Diagnosing soft, hard, or inconsistent brake performance.

Troubleshooting Rear Wheel and Shock Absorber

Diagnosing rear wheel wobble, alignment, and brake capability issues.

Electric System Faults

Diagnosing electrical faults related to lights, battery, charging, and starting systems.

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