🏷️ Basic Information

Make:

Yamaha

Model:

Zuma YW125Y

Year:

2009

Vehicle Type:

Scooter

Chassis Code:

YW125Y

👋 Introduction

Market Segment:

Urban Commuter Scooter

Target Audience:

Urban riders seeking a stylish, fuel-efficient, and easy-to-maintain mode of transportation.

Key Competitors:

Honda Metropolitan, Kymco Agility 125, SYM Fiddle II 125.

Design Philosophy:

Rugged, dual-purpose styling with comfortable ergonomics, suitable for both urban commuting and light trail riding.

Engine Type:

Fuel-injected, 4-stroke, SOHC, 2-valve, air-cooled engine.

Transmission:

Automatic CVT transmission for effortless riding.

Suspension:

Robust telescopic front forks and a single rear shock absorber providing a comfortable ride.

Braking:

Disc brake on the front, drum brake on the rear (typical for this model year).

Wheels Tires:

Larger diameter wheels (e.g., 12-inch front, 10-inch rear) and chunky tires for improved stability and off-pavement capability.

📋 Manual Details

Primary Coverage:

2009 Yamaha Zuma YW125Y Scooter

Estimated Pages:

300-400 (typical for this class of service manual)

Type:

Service Repair Manual

Language:

English

Format:

Downloadable Digital File (PDF)

📖 Manual Coverage

Engine Mechanical:

Complete disassembly, assembly, inspection, and repair of all engine components including cylinder, piston, crankshaft, valves, camshaft, and timing.

Fuel System:

Carburetor (or fuel injection if applicable for model year), fuel pump, fuel lines, fuel filter inspection and replacement.

Ignition System:

CDI unit, ignition coil, spark plug, wiring, and troubleshooting.

Cooling System:

Air cooling system components, shrouds, and fan inspection (if applicable).

Transmission Drive:

CVT (Continuously Variable Transmission) belt, pulleys (drive and driven), clutch, torque converter, gear reduction unit, inspection, replacement, and adjustment.

Brakes:

Front and rear brake systems (disc or drum), hydraulic lines, master cylinders, calipers, brake pads, brake fluid specifications, bleeding procedures, and adjustment.

Suspension:

Front telescopic forks, rear shock absorber, inspection, seal replacement, oil level and type, and adjustments.

Steering:

Handlebars, steering stem, bearings, inspection, lubrication, and replacement.

Electrical System:

Battery, charging system (stator, regulator/rectifier), lighting (headlight, taillight, signals), starter motor, horn, wiring diagrams, fuses, and troubleshooting.

Bodywork:

Fairings, seat, storage compartment, fenders, trim pieces, removal and installation procedures.

Routine Maintenance:

Oil changes, filter replacements, spark plug checks, air filter cleaning/replacement, brake adjustments, chain/belt inspection (if applicable).

Troubleshooting:

Systematic diagnostic procedures for common and uncommon issues, fault codes (if applicable), and symptom-based repair guidance.

Component Overhaul:

Detailed step-by-step instructions for rebuilding major components like the engine, transmission, and suspension.

Electrical Diagnostics:

Wiring diagrams, component testing, and troubleshooting of electrical circuits.

Frame And Chassis:

Inspection and repair of frame components, wheel alignment, and suspension mounting points.

Depth:

Comprehensive. Covers everything from basic maintenance and troubleshooting to complete engine and transmission rebuilds, including detailed specifications and tolerances.

📊 Manual Specifications

File Type:

PDF

Resolution:

High-resolution, suitable for clear viewing and printing of diagrams and text.

Binding:

N/A (Digital Download)

Paper:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Type:

4-stroke, SOHC, 2-valve, Air-cooled

Displacement:

125cc

Bore X Stroke:

52.4 mm x 57.9 mm (Typical for this engine family)

Compression Ratio:

10.0:1 (Typical)

Valve Clearance Intake:

0.06 - 0.11 mm (Cold engine, typical)

Valve Clearance Exhaust:

0.15 - 0.20 mm (Cold engine, typical)

Horsepower:

Approx. 9.5 - 11.0 HP @ 7500-8000 RPM (Estimate based on similar models)

Torque:

Approx. 9.0 - 10.0 Nm @ 6000-6500 RPM (Estimate based on similar models)

Fuel Delivery:

Fuel Injection (FI) - Specific system details and components are detailed in the manual.

Fuel Type:

Unleaded Gasoline

Fuel Tank Capacity:

6.0 Liters (Approx.)

Carburetor Model:

N/A (FI equipped)

Oil Type:

Yamalube 4 (or equivalent SAE 10W-40 API SG or higher)

Oil Capacity With Filter:

0.90 Liters (Approx.)

Oil Capacity Without Filter:

0.80 Liters (Approx.)

Spark Plug Type:

NGK CR7E / Denso U22FER9 (Typical)

🔧 Transmission

Transmission Type:

Automatic Continuously Variable Transmission (CVT)

Drive Type:

Belt Drive

Primary Drive Pulley:

Sheave, drive face, drive boss, spring, weights (variator).

Secondary Drive Pulley:

Sheave, driven face, spring, shoes (clutch).

Gear Reduction:

Planetary gear system (details in manual).

Transmission Fluid:

Yamaha Gear Oil (or equivalent SAE 80 API GL-4)

Transmission Oil Capacity:

0.12 Liters (Approx.)

📐 Dimensions

Length:

1910 mm (Approx.)

Width:

720 mm (Approx.)

Height:

1040 mm (Approx.)

Wheelbase:

1340 mm (Approx.)

Ground Clearance:

120 mm (Approx.)

Seat Height:

760 mm (Approx.)

Curb Weight:

117 kg (Approx.)

Max Load Capacity:

150 kg (Rider + Cargo, typical)

Front Tire Size:

120/90-10 (Typical)

Rear Tire Size:

130/90-10 (Typical)

Front Brake Type:

Disc

Rear Brake Type:

Drum

Front Wheel Size:

10-inch

Rear Wheel Size:

10-inch

🛡️ Safety Features

Crash Test Ratings:

Not applicable for scooters in the same manner as automobiles.

Braking System:

Front disc brake offers good stopping power, rear drum brake provides consistent performance.

Lighting:

Headlight, taillight, brake light, turn signals for visibility.

Chassis Design:

Sturdy frame construction for stability.

Tire Profile:

Taller tire profile contributes to ride comfort and grip.

💡 Technology Features

Instrument Cluster:

Analog speedometer, odometer, fuel gauge, indicator lights (oil, battery, etc.).

ABS:

Not typically equipped on this model year.

Connectivity Features:

N/A (Basic scooter features).

🔧 Maintenance

Engine Oil Change:

Every 3,000 km or 6 months, whichever comes first.

Air Filter Cleaning:

Every 1,000 km or 6 months.

Spark Plug Inspection:

Every 3,000 km or 12 months.

Cvt Belt Inspection:

Every 6,000 km or 12 months.

Brake Fluid Replacement:

Every 2 years or as needed.

Engine Oil Specification:

SAE 10W-40 API SG or higher (Yamalube 4 recommended)

Brake Fluid Specification:

DOT 3 or DOT 4 (refer to manual for specific type)

Gear Oil Specification:

SAE 80 API GL-4

Common Wear Items:

CVT belt, brake pads, tires, battery.

Potential Failures:

Voltage regulator failure (leading to charging issues) can occur on some Yamaha models of this era. Carburetor (on carbureted versions) or fuel injector clogging due to poor fuel quality.

📚 Vehicle History

Brand History:

Yamaha Motor Company, founded in 1955, is a Japanese manufacturer renowned for its motorcycles, scooters, and other recreational vehicles. Known for innovation and performance.

Zuma Lineage:

The Zuma line, introduced in the early 2000s, is characterized by its rugged, 'off-road' inspired styling and larger diameter wheels compared to typical urban scooters. The YW125 model represents an evolution towards fuel injection and improved performance.

Production Location:

Primarily manufactured in Japan and/or other Yamaha global facilities.

🏆 Awards & Recognition

Industry Awards:

While specific awards for the 2009 Zuma YW125Y are not prominently documented, the Zuma line is generally well-regarded for its practical design and versatility in the urban scooter market.