Market Segment:
Urban commuter scooter, light recreational use.
Competitors:
Honda PCX125, Kymco Agility 125, SYM Jet 125, Vespa S 125
Vehicle Features:
Fuel injection, automatic transmission (CVT), underseat storage, rugged styling, comfortable ride, fuel efficiency.
Manual Value:
Essential for DIY maintenance, troubleshooting, and repair, saving on dealership costs and empowering owners.
Systems Covered:
Engine, Fuel System, Cooling System, Drivetrain, Transmission, Chassis, Suspension, Brakes, Electrical System, Ignition System, Lighting, Bodywork, Maintenance, Troubleshooting, Specifications, Torque Values, Wiring Diagrams
Page Count:
Estimated 300-400 pages (typical for full service manuals)
Manual Type:
Service Repair Workshop Manual
Engine Mechanical:
Complete disassembly, inspection, repair, and reassembly of the 125cc engine (cylinder, piston, crankshaft, camshaft, valves, timing chain, etc.)
Fuel System:
Fuel injection system (throttle body, injectors, sensors), fuel pump, fuel filter, fuel tank maintenance and inspection
Cooling System:
Radiator, coolant hoses, thermostat, coolant type and capacity specifications
Drivetrain Transmission:
Automatic transmission (CVT), clutch operation, belt inspection and replacement, variator and torque driver maintenance, gear oil specifications
Chassis Suspension:
Front fork (telescopic), rear shock absorber, swingarm, steering system, bearings, lubrication points
Braking System:
Front and rear disc brakes, brake pad replacement, caliper maintenance, brake fluid type and bleeding procedures
Electrical System:
Battery, charging system (stator, regulator/rectifier), starter motor, ignition system (CDI, spark plug), lighting (headlight, taillight, turn signals), horn, fuses
Bodywork Cosmetics:
Panel removal and installation, seat, luggage rack, fairings, decals
Troubleshooting Diagnostics:
Systematic diagnostic flowcharts for common problems, error codes (if applicable for fuel injection systems), symptom-based troubleshooting guides
Maintenance Routines:
Detailed instructions for routine maintenance tasks, including oil changes, filter replacements, spark plug checks, chain adjustment (if applicable), brake system checks, tire pressure, valve clearance checks
Repair Procedures:
Step-by-step guides for common and complex repairs, including engine rebuilds, transmission overhauls, suspension component replacement, electrical component repair
Technical Specifications:
Torque specifications for all fasteners, engine timing, valve clearances, fluid capacities, electrical resistance values, diagnostic tool interface information
Wiring Diagrams:
Comprehensive electrical wiring diagrams, including color coding and component identification
Depth Level:
Comprehensive. Covers everything from basic maintenance to complete engine and transmission overhauls, electrical system diagnostics, and chassis repairs.
Engine Displacement:
125cc (124cc)
Engine Design:
Single-cylinder, four-stroke, SOHC, 2-valve
Cooling Method:
Forced air cooling
Bore X Stroke:
52.4 mm x 57.9 mm
Power Output:
Approximately 8.0 kW (10.7 hp) @ 7500 rpm (Note: actual figures may vary slightly by region and testing)
Torque:
Approximately 10.4 Nm (7.7 lb-ft) @ 6000 rpm (Note: actual figures may vary slightly by region and testing)
Fuel Delivery:
Electronic Fuel Injection (EFI)
Fuel Type:
Unleaded gasoline, minimum 87 octane
Oil Type:
Yamalube 4 (or equivalent) SAE 10W-40 API Service SG or higher
Oil Capacity W Filter:
0.90 L (0.95 US qt)
Crash Test Ratings:
Motorcycles and scooters are not typically subjected to the same standardized crash testing as automobiles.
Braking System:
Front and rear hydraulic disc brakes for reliable stopping power.
Lighting:
Halogen headlight, LED taillight, turn signals for enhanced visibility.
Frame Construction:
Steel tube underbone frame for rigidity and rider protection.
Tire Type:
Tubeless tires for reduced risk of sudden deflation.
Engine Oil Change:
Every 3,000 km (1,800 miles) or 6 months, whichever comes first.
Air Filter Check:
Check every 6,000 km (3,600 miles), replace as needed.
Spark Plug Inspection:
Inspect every 6,000 km (3,600 miles), replace if necessary.
Cvt Belt Inspection:
Inspect every 10,000 km (6,000 miles), replace as needed based on wear.
Valve Clearance Adjustment:
Inspect every 6,000 km (3,600 miles) or as per manual recommendation.
Engine Oil Spec:
SAE 10W-40 API Service SG or higher (e.g., Yamalube 4)
Brake Fluid Spec:
DOT 3 or DOT 4 (refer to manual for specific recommendation for bleeding)
Gear Oil Spec:
SAE 80 API GL-4
Common Wear Items:
CVT belt wear, brake pad wear, tire wear are common maintenance items due to usage.
Fuel Injector Cleaning:
Occasional fuel injector cleaning may be beneficial for optimal performance, especially with varied fuel quality.
Yamaha Legacy:
Yamaha Motor Company has a long and successful history in motorcycle and scooter manufacturing, known for innovation and reliability.
Zuma Lineage:
The Zuma line began with the Zuma 50, and the Zuma 125 was introduced to offer more power and capability for commuting and light touring, building on the Zuma's rugged and practical image.
Manufacturing Location:
Primarily assembled in Taiwan, with Yamaha's global production network.
2013 Updates:
The 2013 model year generally saw minor refinements or carried over the established design from previous years, as the Zuma 125 had already established its core features.