Comprehensive factory-level detail, suitable for professional mechanics and advanced DIY enthusiasts. Covers from basic maintenance to full engine and transmission rebuilds.
๐ Manual Specifications
File Format
File Format:
PDF (Portable Document Format)
Searchability:
Likely searchable text (common for professionally created PDF manuals)
Print Quality
Print Resolution:
High-quality, designed for clear printing of text and diagrams.
Binding Type
Binding Type:
N/A (Digital Download - User prints and binds as desired)
Paper Type
Paper Type:
N/A (Digital Download - User chooses paper type for printing)
โ๏ธ Engine Specifications
Primary Engine
Engine Type:
2-stroke, liquid-cooled, single-cylinder
Engine Displacement:
97.7 cc
Bore X Stroke:
52.0 mm x 47.8 mm (typical for this engine configuration)
Compression Ratio:
Approx. 7.9:1 (typical for this era)
Power Output:
Approx. 8.0-8.5 HP @ 7000 RPM (specifications vary by market and year)
Torque Output:
Approx. 8.0-8.5 Nm @ 6500 RPM (specifications vary by market and year)
Fuel System
Carburetor:
Mikuni VM20 (typical) or similar 20mm carb
Fuel Type:
Unleaded Gasoline
Fuel Tank Capacity:
Approx. 7.0 Liters (including reserve)
Cooling System
Cooling Method:
Liquid Cooling
Coolant Type:
Ethylene Glycol based coolant (typically 50/50 mix with distilled water). Manual will specify Yamaha genuine coolant or equivalent.
Lubrication System
Lubrication Type:
Premix (Manual Injection Type for 2-stroke oil)
2-Stroke Oil Spec:
API TC, JASO FD (or equivalent specified by Yamaha)
Typically around 180 kg (rider + passenger + cargo)
๐ก๏ธ Safety Features
Ratings
Safety Standards:
Meets relevant EU and national safety standards for scooters of its class.
Active Features
Braking System Type:
Hydraulic front disc brake, Mechanical rear drum brake (some models may have rear disc).
Tires:
Tubeless tires, typically 120/70-13 front, 130/70-13 rear (specific sizes to be confirmed in manual).
Passive Features
Lighting:
Halogen headlight, LED taillight/brake light, standard turn signals.
Chassis Design:
Steel underbone frame providing rigidity and stability.
๐ก Technology Features
Infotainment
Display:
Analog speedometer, fuel gauge, indicator lights. Digital elements may be present on some models or for specific indicators.
Driver Assistance
ABS:
Not typically available on this model.
Connectivity
Connectivity Features:
None.
๐ง Maintenance
Service Intervals
Oil Change Interval:
Every 3,000 km or 6 months (typical for this model, check manual for exact specs).
Air Filter Cleaning:
Every 1,000 km or 3 months, replacement as needed.
Spark Plug Replacement:
Every 6,000 km or 12 months (typical, NGK CR9E or similar recommended).
Gear Oil Change Interval:
Every 6,000 km or 12 months.
Fluid Specifications
Engine Oil Capacity:
Approx. 0.8 Liters (for gearbox, separate from 2-stroke oil injection).
Coolant Capacity:
Approx. 0.5 Liters (check manual for exact figure).
Known Issues
Common Wear Items:
Drive belt wear, carburetor jetting issues, stator coil failure, voltage regulator failure, water pump seal leaks (common in liquid-cooled engines).
Performance Tuning:
Popular for tuning with performance exhausts, variators, and cylinder kits, which can impact reliability if not done correctly or maintained.
๐ Vehicle History
Brand Heritage
Yamaha Legacy:
Yamaha Motor Company has a long history of producing high-performance motorcycles, scooters, and marine engines, known for innovation and reliability.
Model Evolution
Aerox Lineage:
The Aerox line, starting with the 50cc model, established Yamaha's reputation for sporty, performance-oriented scooters. The 100cc model offered increased power for riders needing more capability.
Production
Manufacturing Location:
Primarily manufactured in Europe (e.g., MBK facilities in France, a Yamaha subsidiary).
๐ Awards & Recognition
Recognitions
Awards And Accolades:
While specific awards for the Aerox 100 are not widely publicized, the Aerox family is generally recognized for its sporty design and handling within the scooter market.