Market Segment:
Urban commuter scooter, lightweight, practical, and fuel-efficient.
Key Competitors:
Honda PCX125, Kymco Agility 125, SYM Fiddle II 125.
Design Philosophy:
Rugged, go-anywhere urban styling with robust mechanicals and practical features for everyday use.
Target Audience:
New riders, urban commuters, those seeking economical and reliable personal transportation.
Value Proposition:
Provides comprehensive, factory-level information to enable owners and technicians to perform all necessary maintenance and repairs, saving on labor costs and ensuring optimal performance and longevity.
Engine Mechanical:
Complete disassembly, inspection, repair, and reassembly of all engine components, including cylinder, piston, crankshaft, connecting rod, valves, camshaft, and timing system.
Fuel System:
Fuel injection system (EFI), fuel pump, injectors, throttle body, fuel filter, fuel tank, and evaporative emission control (EVAP) system.
Ignition System:
CDI unit, ignition coil, spark plug, and wiring.
Transmission And Drivetrain:
Automatic continuously variable transmission (CVT), drive belt, clutch, variator, torque driver, final drive gears, and associated components.
Cooling System:
Liquid cooling system, radiator, fan, thermostat, water pump, coolant passages, and hoses.
Electrical System:
Battery, charging system (stator, rectifier/regulator), starter motor, lighting (headlight, taillight, indicators), horn, wiring diagrams, fuses, relays, and ECU.
Braking System:
Front and rear disc brakes, brake calipers, brake pads, brake lines, master cylinders, brake fluid, and parking brake.
Suspension System:
Front telescopic forks, rear swingarm, shock absorber(s), bushings, and related components.
Steering System:
Handlebars, steering stem, steering bearings, and related components.
Chassis And Frame:
Frame construction, bodywork removal and installation, seat, fuel tank, storage compartments, and fasteners.
Wheels And Tires:
Wheel specifications, tire sizes, tire pressure, and wheel bearing maintenance.
Routine Maintenance:
Oil changes, filter replacements, spark plug checks, brake pad inspection, tire pressure adjustment, drive belt inspection, and general lubrication.
Troubleshooting:
Diagnostic procedures for common and uncommon issues, including starting problems, engine performance issues, electrical faults, and braking concerns, with symptom-based fault finding charts.
Component Overhaul:
Detailed step-by-step instructions for the complete disassembly, cleaning, inspection, repair, and reassembly of all major mechanical and electrical components.
Wiring Diagrams:
Comprehensive and clearly laid out electrical wiring diagrams for all models and variations, showing component locations, wire colors, and connections.
Torque Specifications:
Accurate torque values for all critical fasteners, bolts, and nuts throughout the vehicle to ensure proper assembly and prevent damage.
Special Tools:
Identification and usage instructions for any specialized tools or equipment required for specific maintenance or repair procedures.
Technical Depth:
Comprehensive, covering everything from basic servicing to full engine and transmission rebuilds, including electrical diagnostics and troubleshooting.
Engine Type:
4-stroke, Liquid-cooled, SOHC, 4-valve
Bore X Stroke:
52.4 mm x 57.9 mm
Compression Ratio:
12.0:1
Horsepower Estimated:
Approx. 11.3 HP @ 7500 RPM
Torque Estimated:
Approx. 8.7 ft-lbs @ 6000 RPM
Fuel Delivery:
Electronic Fuel Injection (EFI)
Fuel Type:
Unleaded gasoline, 87 octane minimum
Oil Type:
Yamalube 4 (or equivalent) SAE 10W-40 API SG or higher, JASO MA
Oil Capacity With Filter:
0.90 L (0.95 US qt)
Oil Capacity Without Filter:
0.80 L (0.85 US qt)
Engine Oil Change:
Every 3,000 km (1,800 miles) or 6 months, whichever comes first.
Oil Filter Replacement:
Every 6,000 km (3,600 miles) or 12 months.
Spark Plug Check Replace:
Check every 6,000 km (3,600 miles), replace as needed or every 12,000 km (7,200 miles).
Air Filter Cleaning Replacement:
Clean every 6,000 km (3,600 miles), replace as needed or annually.
Drive Belt Inspection:
Inspect every 6,000 km (3,600 miles), replace as needed or at recommended mileage (refer to manual for specific interval, often around 20,000 km).
Brake Pad Inspection:
Inspect every 6,000 km (3,600 miles).
Coolant Replacement:
Replace every 2 years or as specified in manual.
Brake Fluid Type:
DOT 3 or DOT 4 conforming to FMVSS No. 116
Coolant Type:
High quality ethylene glycol based coolant, 50% mixture with distilled water.
Final Drive Oil Type:
Yamalube Gear Oil (or equivalent) SAE 80 API GL-4
Common Issues:
Occasional issues may include drive belt wear, carburetor (on earlier non-EFI models, but Zuma 125 is EFI) or fuel injector cleaning, and suspension wear. The manual addresses these comprehensively.
Brand Overview:
Yamaha Motor Corporation is a renowned Japanese manufacturer of motorcycles, marine products, and other motorized vehicles, known for its innovation, quality, and performance.
Original Launch Year:
The Zuma 125 model was introduced in 2008 (as a 2009 model year).
Key Changes During Coverage:
The 2009-2014 models largely maintained the core design and powertrain, with minor cosmetic updates and potential ECU tuning adjustments across the years. The manual covers the consistent platform within this generation.
Manufacturing Location:
Primarily manufactured in Japan and/or other Yamaha global facilities.
