1994 Yamaha RIVA 125/Z Model Years 1985 ~ 2001

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🏷️ Basic Information Identification Make: Yamaha Model: RIVA 125/Z Model Variant: 125/Z Generation Production Years: 1985-2001 Codes Chassis Codes: CE50 ('94 RIVA 125/Z) 👋 Introduction Market Position Segment: Lightweight scooter,...

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Type: Motorcycle

Vendor:

Sku: 605189

Tags: 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 Motorcycle Motorcycles RIVA 125 Riva Models RIVA Z Yamaha

Product variants

Description

🏷️ Basic Information

Identification

Make:

Yamaha

Model:

RIVA 125/Z

Model Variant:

125/Z

Generation

Production Years:

1985-2001

Codes

Chassis Codes:

CE50 ('94 RIVA 125/Z)

👋 Introduction

Market Position

Segment:

Lightweight scooter, popular for urban commuting and recreational use.

Competitive Analysis

Competitors:

Honda Spacy, Suzuki Address, Vespa LX series (contemporary models)

Key Features

Design Philosophy:

Practicality, fuel efficiency, ease of operation, and Yamaha's signature reliability.

Target Audience:

Beginner riders, commuters seeking an economical and user-friendly mode of transport.

📋 Manual Details

Coverage Areas

Primary Coverage:

Complete Service and Repair

Secondary Coverage:

Maintenance, Troubleshooting, Diagnostics, Wiring Diagrams, Component Overhaul

Page Count

Estimated Pages:

250-350

Manual Type

Type:

Factory Service Manual (FSM)

Language

Language:

English

Format

Format:

Digital (PDF)

📖 Manual Coverage

Systems Covered

Engine Systems:

Engine disassembly, assembly, tuning, lubrication, cooling, fuel, ignition, exhaust

Transmission Systems:

Automatic transmission (CVT) operation, maintenance, repair, fluid specifications

Chassis Systems:

Frame, suspension (front and rear), steering, wheels, tires

Braking Systems:

Brake system inspection, repair, fluid specifications, bleeding procedures

Electrical Systems:

Battery, charging system, ignition system, lighting, starting system, wiring diagrams

Body And Trim:

Body panel removal/installation, seat, fairings, storage compartments

Procedures Included

Routine Maintenance:

Oil changes, filter replacements, spark plug checks, drive belt inspection, brake adjustments

Troubleshooting:

Diagnostic charts for common starting, running, and electrical issues

Major Repairs:

Engine rebuilding, transmission overhaul, suspension component replacement

Special Procedures:

Carburetor cleaning and adjustment, CVT roller weight inspection, ignition timing checks

Technical Depth

Depth:

Comprehensive: Covers basic maintenance to complete engine and transmission rebuilds with detailed torque specifications and tolerances.

📊 Manual Specifications

File Format

PDF Quality:

High-resolution scans, searchable text for easy navigation

Print Quality

Print Readability:

Designed for clear printing of all diagrams, text, and specifications

Binding Type

Digital Format:

PDF (Portable Document Format)

Paper Type

Digital Accessibility:

Accessible on computers, tablets, and smartphones

⚙️ Engine Specifications

Primary Engine

Engine Type:

Air-cooled, 2-stroke, single-cylinder

Displacement:

125cc (approximate, actual may vary slightly by sub-model)

Bore X Stroke:

52.0 mm x 57.8 mm (typical for this engine family)

Compression Ratio:

7.0:1 (typical)

Performance

Horsepower:

Approx. 9-10 HP @ 7000 RPM (varies by specific model year and tuning)

Torque:

Approx. 1.0 kgf·m @ 6500 RPM (varies)

Fuel System

Carburetor Type:

Mikuni VM Series (e.g., VM24SH or similar)

Fuel Type:

Unleaded gasoline (minimum 87 octane recommended)

Lubrication

Oil Type:

Yamaha 2-stroke scooter oil or API TC/JASO FD compliant synthetic 2-stroke oil

Oil Mixing:

Automatic oil injection system

🔧 Transmission

Standard

Transmission Type:

Automatic (CVT - Continuously Variable Transmission)

Optional

Gearbox Options:

N/A (all models feature CVT)

Features

Drive System:

Belt drive

Final Drive:

Gear reduction

📐 Dimensions

Exterior

Overall Length:

Approx. 1860 mm (73.2 in)

Overall Width:

Approx. 670 mm (26.4 in)

Overall Height:

Approx. 1060 mm (41.7 in)

Wheelbase:

Approx. 1270 mm (50.0 in)

Ground Clearance:

Approx. 105 mm (4.1 in)

Weights

Dry Weight:

Approx. 95 kg (209 lbs)

Curb Weight:

Approx. 100 kg (220 lbs)

Max Load Capacity:

Typically 150 kg (rider + cargo)

Cargo

Storage:

Under-seat storage compartment, rear luggage rack provisions

🛡️ Safety Features

Ratings

Safety Certifications:

CE, EPA (depending on market and year)

Active Features

Braking Type:

Front: Drum brake; Rear: Drum brake

Lighting:

Headlight, taillight, brake lights, turn signals

Passive Features

Frame Construction:

Steel tube frame for rigidity

Stand:

Center stand and side stand

💡 Technology Features

Infotainment

Features:

Analog speedometer, fuel gauge, indicator lights.

Driver Assistance

Features:

N/A (basic mechanical systems)

🔧 Maintenance

Service Intervals

Oil Change Interval:

Every 2,000 km or 6 months

Spark Plug Check:

Every 1,000 km

Air Filter Cleaning:

Every 2,000 km

Cvt Belt Inspection:

Every 4,000 km

Fluid Specifications

Engine Oil Capacity:

Approx. 0.8 - 1.0 Liters (check dipstick)

Transmission Oil Type:

Yamalube Gear Oil (or equivalent API GL-4, SAE 80W-90)

Transmission Oil Capacity:

Approx. 100 ml

Brake Fluid Type:

DOT 3 or DOT 4 (check specific model year) - for drum brakes, fluid is not typically used for actuation.

Known Issues

Common Problems:

Carburetor clogging due to infrequent use, worn CVT belt, aging electrical connections, exhaust leaks, rear shock absorber wear.

Preventative Maintenance:

Regular starting and short rides, fuel stabilizer during storage, consistent adherence to service intervals.

📚 Vehicle History

Brand Heritage

Yamaha Legacy:

Yamaha Motor Corporation, established in 1955, is renowned for its motorcycles, marine products, and musical instruments, with a strong commitment to engineering excellence and performance.

Model Evolution

Riva Lineage:

The RIVA series was Yamaha's entry into the popular lightweight scooter market, evolving over the years with minor cosmetic and mechanical updates to meet market demands and emissions standards.

Production

Manufacturing Origin:

Primarily manufactured in Japan, with potential later assembly in other regions.

Sales Impact:

The RIVA 125/Z contributed significantly to Yamaha's market share in the urban commuter scooter segment during its production run.

🏆 Awards & Recognition

Recognitions

Market Reputation:

Praised for its reliability and ease of use, making it a popular choice for new riders and city commuters.