Yamaha R5C 1972 1973 Factory Service Repair Manual

Normaler Preis: $16.99
Verkaufspreis: $16.99
Normaler Preis
Grundpreis: pro

24 people are viewing this right now

Typ: Motorcycle

Anbieter:

Art.-Nr: 51911

Stichworte: 1972 1973 Misc Motorcycle Motorcycles R5C Yamaha

Produktvarianten

Beschreibung

The Yamaha R5C, produced between 1972 and 1973, represents a pivotal model in Yamaha's heritage of performance motorcycles. This parallel-twin, two-stroke machine featured reed valve induction and a front disc brake, offering a compelling blend of accessible performance and sporty handling that distinguished it in its class. As a precursor to the legendary RD series, the R5C embodies the engineering prowess and rider-focused design that defined Yamaha during this era, making it a sought-after classic for enthusiasts. This comprehensive Factory Service Repair Manual provides detailed instructions and specifications essential for maintaining and repairing the Yamaha R5C. It covers all major systems, including the engine, transmission, frame, suspension, brakes, and electrical components, with in-depth procedures for maintenance, troubleshooting, and complete overhauls. Whether you are performing routine service or a full restoration, this manual serves as an indispensable resource for owners, technicians, and mechanics to ensure the optimal performance and longevity of this iconic motorcycle.

🏷️ Basic Information

Identification

Make:

Yamaha

Model:

Year:

👋 Introduction

Market Position

Positioning:

The Yamaha R5C was a significant model in Yamaha's sport motorcycle lineage, bridging the gap between earlier models and the iconic RD series. It was positioned as an accessible yet performance-oriented twin-cylinder two-stroke.

Competitive Analysis

Competitors:

Competed against models like the Kawasaki H1 Mach III, Suzuki T500 Titan, and Honda CB350/CB400 Four, offering a unique blend of handling and torque characteristics.

Key Features

Features:

Parallel-twin two-stroke engine, reed valve induction, disc front brake, lightweight chassis, sporty styling.

📋 Manual Details

Coverage Areas

Coverage:

Complete Factory Service Repair Manual

Page Count

Pages:

Hundreds (exact count not specified, but implied extensive)

Manual Type

Type:

Factory Service Repair Manual

Language

Language:

English

Format

Format:

PDF Download

📖 Manual Coverage

Systems Covered

Engine:

Complete engine overhaul, tuning, carburetor, ignition, lubrication, cooling

Transmission:

Gearbox disassembly, assembly, inspection, lubrication

Frame And Suspension:

Frame inspection and repair, front forks, rear shock absorbers, swingarm, steering

Brakes:

Front and rear brake system maintenance, adjustment, component replacement

Electrical System:

Wiring diagrams, lighting, ignition system, charging system, battery

Fuel System:

Fuel tank, fuel lines, petcock, carburetor service

Exhaust System:

Exhaust pipes, mufflers, mounting

Wheels And Tires:

Wheel removal, installation, tire replacement, spoke adjustment

Bodywork And Trim:

Fenders, fuel tank, seat, handlebars, controls, emblems

Procedures Included

Maintenance:

Regular scheduled maintenance, fluid changes, filter replacements, chain adjustment

Troubleshooting:

Diagnostic procedures for common and uncommon faults, symptom analysis

Repair:

Detailed step-by-step repair instructions for all major components and systems

Overhaul:

Complete engine and transmission rebuild procedures

Adjustment:

Carburetor synchronization, ignition timing, clutch and brake adjustments

Inspection:

Component wear assessment, safety checks

Technical Depth

Depth:

Comprehensive, from basic adjustments to complete engine rebuilds and electrical system diagnostics

📊 Manual Specifications

File Format

Format:

Print Quality

Quality:

High-resolution, printable pages

Binding Type

Binding:

Digital (downloadable, printable)

Paper Type

Paper:

N/A (digital format)

⚙️ Engine Specifications

Primary Engine

Type:

Air-cooled, two-stroke, parallel-twin

Displacement:

347 cc (approximate, depending on specific R5C variant)

Bore X Stroke:

54.0 mm x 74.0 mm (typical for R5 series)

Compression Ratio:

6.6:1 (typical)

Induction:

Reed valve induction

Performance

Horsepower:

Approximately 33 hp @ 7,000 rpm (estimated)

Torque:

Approximately 26 lb-ft @ 6,000 rpm (estimated)

Fuel System

Carburetors:

Dual Mikuni VM30SC (or similar 30mm units)

Fuel Type:

Unleaded gasoline (pre-mix oil required)

Lubrication

System:

Autolube (separate oil injection) and premix backup

Ignition

System:

Contact breaker points, CDI ignition (later models/upgrades)

Engine Numbers

Identification:

Engine number typically found on the crankcase near the transmission.

🔧 Transmission

Standard

Type:

5-speed constant mesh

Optional

Optional Gearbox:

N/A (standard 5-speed)

Features

Clutch:

Wet, multi-plate

Final Drive:

Chain drive

Fluid Specifications

Gearbox Oil:

Yamalube 2-stroke oil or equivalent SAE 20W API API-GL4 (check manual for exact spec).

📐 Dimensions

Exterior

Length:

Approx. 81.5 in (2070 mm)

Width:

Approx. 30.7 in (780 mm)

Height:

Approx. 43.7 in (1110 mm)

Wheelbase:

Approx. 53.7 in (1365 mm)

Weights

Dry Weight:

Approx. 357 lbs (162 kg)

Wet Weight:

Approx. 384 lbs (174 kg)

Fuel Capacity

Tank Capacity:

Approx. 4.2 US gallons (16 liters)

Tire Sizes

Front Tire:

3.00-18 4PR (typical)

Rear Tire:

3.50-18 4PR (typical)

Wheelbase

Wheel Pattern:

Spoked wheels

🛡️ Safety Features

Ratings

Safety Ratings:

N/A (vintage motorcycle, safety standards were different)

Active Features

Front Brake:

Single Disc Brake

Rear Brake:

Drum Brake

Passive Features

Lighting:

Halogen Headlight, Taillight, Turn Signals

💡 Technology Features

Infotainment

Features:

N/A (no electronic infotainment features)

Driver Assistance

Features:

N/A (no electronic driver assistance features)

Connectivity

Features:

N/A (no electronic connectivity features)

Performance Tech

Induction Type:

Reed valve induction for improved low-end torque and throttle response compared to piston port designs.

Brakes:

Introduction of a front disc brake was a significant advancement for improved stopping power over drum brakes.

🔧 Maintenance

Service Intervals

Oil Change:

Check Autolube system regularly; gearbox oil change every 3,000-6,000 miles or annually.

Spark Plugs:

Inspect and clean/replace every 1,500-3,000 miles.

Chain Adjustment:

Check and adjust chain slack every 500 miles or as needed.

Carburetor Cleaning:

Recommended annually or if performance issues arise.

Air Filter:

Clean/replace every 3,000 miles or as per manual recommendation.

Fluid Specifications

2 Stroke Oil:

Yamalube 2-stroke oil or equivalent JASO FD/FC rated oil.

Brake Fluid:

DOT 3 or DOT 4 (for disc brake caliper, check manual for specific type and replacement interval).

Known Issues

Ignition Systems:

Points ignition can be finicky; CDI upgrades are common. Worn points can cause misfires.

Carburetors:

VM30 carburetors can be prone to wear and require precise tuning. Diaphragm issues can cause poor performance.

Autolube System:

Oil pump drive or pump itself can fail, leading to engine seizure if not maintained. Always ensure oil reservoir is filled.

Engine Sealing:

Like many vintage two-strokes, crank seals can degrade over time, leading to air leaks and running issues.

Clutch:

Clutch plates can wear out, requiring replacement. Clutch adjustment is critical for smooth engagement.

Part Numbers

Common Parts:

Manual will contain specific part numbers for engine components, seals, gaskets, electrical parts, etc.

📚 Vehicle History

Brand Heritage

Heritage:

Yamaha has a rich history in motorcycle manufacturing, known for innovation and performance, particularly in the two-stroke era.

Model Evolution

Predecessors:

Evolved from earlier Yamaha parallel-twin models like the YDS series.

Successors:

Directly led to the highly successful Yamaha RD series (RD250, RD350, RD400).

Production

Production Years:

1972-1973 (for R5C variant)

Manufacturing Location:

Japan

🏆 Awards & Recognition

Recognitions

Industry Recognition:

While specific awards are not documented for the R5C itself, it was recognized as a capable and enjoyable sport motorcycle of its era, laying the groundwork for the RD series' success.

Ratings

Performance Ratings:

Generally well-received by motorcycle press for its performance and handling characteristics relative to its class and price point.