🏷️ Basic Information

Make:

Yamaha

Model:

Aerox 100

Model Code:

YQ100

Generation:

First Generation

Engine Code:

Likely 5RW, specific code may vary slightly by region/year, but is a 100cc 2-stroke engine.

👋 Introduction

Target Audience:

Yamaha Aerox 100 owners, DIY mechanics, independent repair shops.

Value Proposition:

Provides dealership-level repair information for DIY use, saving on professional labor costs. Comprehensive and vehicle-specific, unlike generic guides.

Delivery Method:

Instant PDF download.

Content Quality:

Factory-level detail, step-by-step instructions, diagrams, illustrations, and schematics.

📋 Manual Details

Coverage Years:

2000, 2001, 2002, 2003, 2004

Coverage Models:

All Yamaha Aerox 100 (YQ100) models within the specified year range.

Estimated Page Count:

Comprehensive (typically 300-600+ pages for a full service manual)

Manual Type:

Service Repair Workshop Manual

Language:

English

File Format:

PDF

📖 Manual Coverage

Engine:

Complete overhaul, rebuilding, diagnostics, performance tuning, timing belt (if applicable, typically a belt drive not timing belt for this 2-stroke), firing orders.

Fuel System:

Carburetor diagnosis and adjustment, fuel lines, fuel pump (if applicable).

Ignition System:

CDI unit, spark plug, ignition coil, wiring.

Transmission:

CVT (Continuously Variable Transmission) service, clutch inspection and adjustment, variator and torque driver maintenance, belt replacement.

Brakes:

Front and rear brake system service, hydraulic systems, brake pad replacement, caliper maintenance, bleeding procedures, disc inspection.

Suspension:

Front fork service and rebuild, rear shock absorber replacement and adjustment, suspension geometry.

Electrical System:

Complete wiring schematics, lighting, starter system, battery maintenance, charging system, fuses, relays.

Cooling System:

Liquid cooling system service (radiator, water pump, thermostat, coolant type and capacity).

Chassis And Frame:

Frame inspection, bodywork removal and installation, fairings, seating.

Wheels And Tires:

Tire pressure, tire replacement, wheel bearing service, wheel removal and installation.

Exhaust System:

Exhaust pipe and muffler inspection and replacement.

Maintenance:

Scheduled maintenance, fluid changes, filter replacements, lubrication points, general upkeep.

Troubleshooting:

Diagnostic charts, common problems and solutions, fault finding procedures, trouble codes.

Repair:

Step-by-step repair instructions for all major components and systems, from minor adjustments to major overhauls.

Diagnostics:

Detailed diagnostic procedures, including troubleshooting trees and component testing.

Rebuilding:

Engine overhaul and rebuilding, transmission component servicing.

Wiring Diagrams:

Complete, detailed electrical system wiring schematics.

Specifications:

Torque specifications, clearances, fluid capacities, electrical values, engine tolerances.

Engine Overhaul:

Detailed step-by-step instructions for complete engine disassembly, inspection, part replacement, and reassembly.

Carburetor Service:

Cleaning, adjustment, jetting information, and troubleshooting for the carburetor.

Brake System Bleeding:

Proper procedure for bleeding hydraulic brake systems to remove air.

Front Fork Rebuild:

Disassembly, cleaning, inspection, and reassembly of front suspension forks, including oil level and type.

Cooling System Flush:

Procedures for draining, flushing, and refilling the liquid cooling system.

Depth Of Coverage:

Comprehensive, covering all aspects of maintenance, diagnosis, and repair from basic to advanced.

📊 Manual Specifications

File Format:

PDF (Portable Document Format)

Printability:

All pages printable, with option to enlarge images for detail.

Binding Type:

N/A (Digital Download - PDF)

Paper Type:

N/A (Digital Download - PDF)

Operating Systems:

Compatible with Windows (XP, ME, 98, NT, 2000, Vista 32/64, 7 and later) and Mac computers.

Required Software:

Adobe PDF Reader or compatible.

⚙️ Engine Specifications

Engine Type:

2-Stroke, Liquid-Cooled, Single-Cylinder

Displacement:

98.5 cc

Bore X Stroke:

Approx. 50.4 mm x 50.0 mm (refer to manual for exact specs)

Compression Ratio:

Typically around 7.2:1 (check manual for precise figure)

Horsepower:

Approximately 8.0 - 9.0 PS (refer to manual for specific model year output)

Torque:

Refer to manual for specific torque figures.

Fuel Delivery:

Carburetor (e.g., Mikuni VM20-203 or similar)

Fuel Type:

Unleaded gasoline (RON 91 or higher recommended)

Fuel Tank Capacity:

Approx. 7.0 Liters

Oil System:

Autolube (Oil injection system)

2-Stroke Oil Type:

API TC or JASO FD certified 2-stroke motorcycle oil.

Gear Oil Type:

Yamalube Gear Oil (or equivalent SAE 80 API GL-4) for final drive.

🔧 Transmission

Transmission Type:

Automatic CVT (Continuously Variable Transmission)

Optional Transmission:

N/A

Drive Type:

Belt drive to rear wheel

Clutch Type:

Centrifugal Automatic Clutch

📐 Dimensions

Overall Length:

Approx. 1,860 mm (refer to manual for exact specs)

Overall Width:

Approx. 715 mm (refer to manual for exact specs)

Overall Height:

Approx. 1,140 mm (refer to manual for exact specs)

Dry Weight:

Approx. 97 kg (refer to manual for exact specs)

Gross Vehicle Weight Rating:

Refer to manual for GVWR

🛡️ Safety Features

Crash Test Ratings:

N/A (Vehicle type does not typically undergo standardized crash testing in the same way as cars).

Braking System:

Front Disc Brake, Rear Drum Brake (some markets may have dual disc).

Lighting System:

Headlight, Taillight, Brake Light, Turn Signals.

💡 Technology Features

Infotainment System:

N/A (Basic scooter instrumentation: speedometer, odometer, fuel gauge, indicator lights).

Driver Assistance Features:

N/A

Connectivity Features:

N/A

🔧 Maintenance

Oil Change Interval:

Refer to manual for specific recommendations, typically every 3,000-5,000 km or annually.

Air Filter Cleaning:

Inspect and clean every 2,000 km, replace as needed. Refer to manual.

Spark Plug Replacement:

Typically every 6,000-10,000 km, depending on type and usage. Refer to manual for specific plug type and gap.

Transmission Oil Change:

Every 6,000-12,000 km or as specified in the manual.

Coolant Change:

Every 2 years or as per manual recommendations.

Engine Coolant:

Ethylene glycol-based antifreeze/coolant mixture (50/50).

Brake Fluid:

DOT 3 or DOT 4 hydraulic brake fluid.

Common Problems:

Potential issues can include carburetor clogging from infrequent use, worn CVT components (belt, rollers) over time, electrical connections, and typical 2-stroke engine wear if not properly maintained. (Manual will detail specific diagnostic steps).

📚 Vehicle History

Yamaha Motorcycles:

Yamaha Motor Company is renowned for its innovative engineering, performance, and reliability across a wide range of motorcycles and scooters.

Aerox Series:

The Aerox is Yamaha's popular sporty scooter line, known for its agile handling and performance-oriented design, tracing its roots back to earlier models. The YQ100 represents a robust 100cc offering in this line.

Production Period:

The YQ100 Aerox was produced for the European market and other regions between approximately 2000 and 2004, with updates and variations possibly occurring in subsequent years.

🏆 Awards & Recognition

Model Awards:

The Yamaha Aerox line generally receives positive reviews for its sporty handling and performance in the scooter segment, often cited as a benchmark for performance scooters. Specific awards for the YQ100 model are not widely documented but it was a popular and well-regarded model.