Yamaha RD350 1984-1986 Workshop Service Manual Repair

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类型: Motorcycle

斯库: 56688

标签: 1984 1985 1986 Marine Motorcycle RD350 Sterndrive Yamaha

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Description

The Yamaha RD350, produced from 1984 to 1986, was a celebrated sportbike renowned for its potent parallel-twin, liquid-cooled two-stroke engine, featuring the Yamaha Energy Induction System (YEIS) for improved torque. This model, often known as the RD350LC II or RZ350 in certain markets, offered exhilarating acceleration and agile handling, making it a standout performer in its class. Its engineering quality and reliability, coupled with a lightweight chassis and distinctive styling, cemented its reputation among performance enthusiasts and contributed to Yamaha's legacy of producing exciting motorcycles. This comprehensive workshop service manual provides detailed guidance for the Yamaha RD350 models from 1984-1986. It covers all essential aspects of maintenance, repair, and diagnostics, including the engine, transmission, fuel system, ignition, electrical systems, chassis, suspension, and brakes. With step-by-step instructions, troubleshooting guides, and technical specifications, this manual is an indispensable resource for owners and technicians aiming to maintain and restore the optimal performance and longevity of their RD350.

🏷️ Basic Information

Identification

Make:

Yamaha

Model:

RD350

Years Covered:

1984, 1985, 1986

Codes

Engine Code:

2X7 (typical for this era RD350)

Chassis Code:

RD350LC II (likely variant for these years)

👋 Introduction

Market Position

Market Position:

The Yamaha RD350 series, particularly the models from 1984-1986 (often referred to as RD350LC II or RZ350 variants depending on market), was a performance-oriented, lightweight, two-stroke sportbike. It was known for its exhilarating acceleration and agile handling, making it a popular choice for performance enthusiasts and racers in its era.

Competitive Analysis

Competitive Analysis:

Competed against other similarly displacemented two-stroke and early four-stroke sportbikes from manufacturers like Suzuki (RG series), Kawasaki (GPz series), and Honda (VT/VF series, though often higher displacement). Its direct competitors were often models like the Suzuki RG500 Gamma (though more powerful and expensive) and other 250-400cc class sportbikes.

Key Features

Key Features:

Parallel-twin, liquid-cooled, reed-valve induced two-stroke engine; Yamaha Energy Induction System (YEIS); distinctive styling; potent performance for its class; lightweight chassis; strong aftermarket support.

📋 Manual Details

Coverage Areas

Coverage Areas:

Comprehensive coverage for all aspects of the Yamaha RD350 1984-1986 models.

Page Count

Page Count:

Hundreds of pages (typical for a full workshop manual).

Manual Type

Manual Type:

Workshop Service Manual / Repair Manual

Language

Language:

English

Format

Format:

PDF Download

📖 Manual Coverage

Systems Covered

Systems Covered:

Engine, Transmission, Fuel System, Ignition System, Cooling System (if applicable), Electrical System, Chassis, Suspension, Brakes, Wheels, Tires, Bodywork, Lubrication, Special Tools, Troubleshooting, Diagnostics.

Procedures Included

Procedures Included:

Routine maintenance, periodic maintenance charts, step-by-step repair instructions, overhaul procedures, troubleshooting guides, diagnostic procedures, component removal and installation, adjustments, specifications, torque values, wiring diagrams.

Technical Depth

Technical Depth:

Professional technician level with adequate data for DIY mechanics. Covers everything from basic adjustments to complete engine rebuilds and electrical system diagnostics.

📊 Manual Specifications

File Format

File Format:

Print Quality

Print Quality:

Full Printable - Allows printing of specific sections or the entire manual.

Binding Type

Binding Type:

N/A (Digital Download)

Paper Type

Paper Type:

N/A (Digital Download)

Zoom Functionality

Zoom In Out:

Delivery Method

Delivery Method:

Instant Download

Software Requirements

Software Requirements:

Adobe PDF Reader & WinRAR

Compatibility

Compatibility:

All Versions of Windows & Mac

⚙️ Engine Specifications

Primary Engine

Engine Type:

Liquid-cooled, 2-stroke, parallel-twin

Displacement:

347 cc (approx.)

Bore X Stroke:

54.0 mm x 75.0 mm (typical for RD350LC II)

Compression Ratio:

7.4:1 (approx.)

Performance

Horsepower:

Approx. 50-60 hp (market dependent, often rated higher for RZ models)

Torque:

Approx. 27-30 lb-ft (market dependent)

Fuel System

Carburetors:

Twin Mikuni VM28SS (or similar) slide carburetors

Fuel Induction:

Reed valve with Yamaha Energy Induction System (YEIS)

Fuel Type:

Unleaded gasoline, minimum 91 octane (RON+MON)/2 recommended for optimal performance and longevity; requires 2-stroke oil premix or oil injection system.

Lubrication

Lubrication System:

Autolube (oil injection) or premix.

🔧 Transmission

Standard

Transmission Type:

6-speed constant mesh

Clutch:

Wet, multiple disc

Features

Final Drive:

Chain drive

📐 Dimensions

Exterior

Length:

Approx. 2,040 mm (80.3 in)

Width:

Approx. 740 mm (29.1 in)

Height:

Approx. 1,155 mm (45.5 in)

Wheelbase:

Approx. 1,355 mm (53.3 in)

Weights

Dry Weight:

Approx. 150 kg (330 lbs)

Wet Weight:

Approx. 165 kg (364 lbs) (with fluids)

Fuel Capacity:

Approx. 17 liters (4.5 US gal)

🛡️ Safety Features

Ratings

Safety Ratings:

N/A (Motorcycles of this era typically did not have standardized crash test ratings like cars.)

Active Features

Active Features:

Responsive braking system, agile handling characteristics.

Passive Features

Passive Features:

Sturdy frame construction, rider ergonomics designed for control.

Braking System

Front Brake:

Hydraulic disc (dual disc on some models/markets)

Rear Brake:

Drum or hydraulic disc (depending on market and specific model variant)

💡 Technology Features

Infotainment

Infotainment Systems:

N/A (As a 1980s sportbike, infotainment systems in the modern sense were not present. Instrumentation typically included speedometer, tachometer, odometer, trip meter, neutral indicator, and warning lights.)

Driver Assistance

Driver Assistance Features:

N/A (No electronic rider aids like ABS or traction control were featured on this model.)

Connectivity

Connectivity Features:

Engine Management

Ignition System:

CDI (Capacitor Discharge Ignition) with electronic advance.

Yeis System:

Yamaha Energy Induction System (YEIS) helps improve low-end and mid-range torque by creating a secondary air chamber and venturi effect, smoothing power delivery.

🔧 Maintenance

Service Intervals

Service Intervals:

The manual details specific intervals for oil changes (gearbox), spark plug checks/replacement, air filter cleaning/replacement, chain adjustment and lubrication, brake fluid checks, coolant checks (if liquid-cooled), and top-end engine inspections (for 2-strokes). These are typically provided in mileage or time-based charts.

Fluid Specifications

Gearbox Oil Type:

Yamaha recommends Yamalube Gear Oil (or equivalent API GL-4 SAE 80W or 90W hypoid gear oil). Capacity typically around 1.0-1.2 liters.

Coolant Type:

A 50/50 mixture of Yamaha Super Coolant (or equivalent) and distilled water for liquid-cooled models. Check manual for specific freeze point requirements for your climate.

Brake Fluid Type:

DOT 4 brake fluid is typically recommended. Refer to manual for specific DOT rating and replacement intervals.

2 Stroke Oil Type:

High-quality 2-stroke motorcycle oil, specifically designed for reed-valve, liquid-cooled engines (e.g., Yamalube 2R or equivalent JASO FD/FC certified oil).

Known Issues

Known Issues:

Common issues for 2-stroke motorcycles of this era can include carbon build-up in the combustion chamber and exhaust ports, reed valve wear, crank seal leaks, and carburetor synchronization issues. Regular maintenance and proper oiling are crucial for longevity.

Carburetor Tuning:

Carburetors require precise tuning and synchronization for optimal performance. Jetting may need adjustment based on altitude, temperature, and exhaust modifications. The manual provides detailed guidance on this.

Spark Plugs

Recommended Spark Plugs:

Typically NGK BR9ES or equivalent. Refer to manual for exact part number and heat range. Proper gap is critical.

📚 Vehicle History

Brand Heritage

Brand Heritage:

Yamaha has a long and illustrious history in motorcycle racing and performance street bikes, particularly with its two-stroke technology. The 'RD' designation signifies a lineage of sporty, performance-oriented machines.

Model Evolution

Model Evolution:

The RD350 evolved from earlier successful Yamaha two-stroke models. The 1984-1986 models are often considered part of the RD350LC II or the closely related RZ350 lineage, which refined the formula with improved suspension, braking, and often aerodynamic fairings. The RZ designation was frequently used in North American markets for models with higher performance specifications.

Production

Production Period:

The RD350 line had various iterations from the late 1970s through the 1980s. The specific 1984-1986 models represent a significant phase of this popular sportbike's development.

🏆 Awards & Recognition

Recognitions

Recognitions:

While specific awards for the 1984-1986 models aren't always documented in this format, the RD350/RZ350 line was widely acclaimed in its time for its performance, handling, and value, contributing significantly to Yamaha's reputation as a builder of exciting sportbikes. It was a popular choice in road tests and magazine comparisons.