🏷️ Basic Information Identification Make: Yamaha Model: RD350 Year: 1984-1986 Engine Type: 2-stroke Engine Configuration: Parallel-twin Generation Generation: RD350LC II (YPVS) 👋 Introduction Market Position Segment: Performance Sportbike (2-stroke era) Competitive Analysis Competitors: Honda CBR400F, Kawasaki Z400-F, Suzuki GSX-R400 (contemporary models) Key Features Unique Selling Points: Yamaha's innovative YPVS (Yamaha Power Valve System) for improved torque and power delivery across the rev range. Target Audience Audience: Owners, mechanics, and enthusiasts of the Yamaha RD350 (1984-1986) seeking comprehensive repair and maintenance information. 📋 Manual Details Coverage Areas Models Covered: All Yamaha RD350 models from 1984-1986 Engines Covered: All engine variants Trims Covered: All trim levels Transmissions Covered: All transmission types Page Count Estimated Page Count: Hundreds of pages (as indicated in product description) Manual Type Type: Workshop Repair Service Manual Completeness: Complete and intact, covering all aspects of service and repair, same as used by professional technicians. Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Systems: General Information, Fuel System, Cooling System, Engine Top End, Clutch, Engine Lubrication System, Crankshaft/Transmission, Wheels/Tires, Final Drive, Brakes, Suspension, Steering, Frame, Electrical System, Appendix Electrical System Details: Detailed wiring diagrams, component identification, troubleshooting for ignition system, charging system, lights, and switches. Procedures Included Procedures: Service, Maintenance, Troubleshooting, Diagnostic, Repair, Disassembly, Assembly, Cleaning, Reinstalling, Wiring Diagrams, Electrical Service Procedures Engine Rebuild: Comprehensive procedures for engine disassembly, inspection, component replacement (pistons, rings, bearings, seals), and reassembly. Technical Depth Depth: Professional-level technical information, diagnostic procedures, detailed repair instructions, critical specifications, illustrations, diagrams, and photos 📊 Manual Specifications File Format File Format: PDF Print Quality Printability: Full Printable Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Viewing Requirements Requirements: Adobe PDF Reader & WinZip Compatibility Compatibility: All Versions of Windows & Mac Zoom Functionality Zoom: YES (Zoom IN/OUT) ⚙️ Engine Specifications Primary Engine Engine Displacement: 347cc (approximate, actual can vary slightly by market) Engine Bore X Stroke: 54.0 mm x 75.0 mm (typical) Compression Ratio: 6.2:1 (typical) Engine Cooling: Liquid-cooled Engine Power Output: Approx. 47-50 hp (market dependent) Engine Torque: Approx. 36-38 Nm (market dependent) Performance Top Speed: Approx. 170-180 km/h (depending on rider, conditions, and gearing) Acceleration 0-100Km/H: Approx. 4.5-5.5 seconds Fuel System Carburetors: Dual Mikuni VM26SS (or similar twin slide carbs) Fuel Type: Unleaded Gasoline (minimum 90 RON recommended, though 95+ is ideal for optimal performance and engine longevity) Fuel Tank Capacity: Approx. 17-19 liters (market dependent) 🔧 Transmission Standard Type: 6-speed constant mesh Optional Optional Gear Ratios: N/A (Factory only) Features Clutch Type: Wet, multi-plate, cable-actuated Transmission Oil Type: Yamalube 2-stroke oil or equivalent API-TC rated (mixed with fuel) 📐 Dimensions Exterior Length: Approx. 2135 mm Width: Approx. 755 mm Height: Approx. 1160 mm Weights Dry Weight: Approx. 150-155 kg Wet Weight: Approx. 165-170 kg (with fluids) 🛡️ Safety Features Ratings Safety Features: Disc Brakes (Front and Rear), reliable lighting system Active Features Braking System: Front: Hydraulic disc, Rear: Hydraulic disc Passive Features Chassis Design: Steel diamond frame for rigidity and handling 💡 Technology Features Infotainment Infotainment System: N/A (Basic motorcycle instrumentation) Driver Assistance Assistance Features: N/A (Mechanical systems only) Connectivity Connectivity Options: N/A (Mechanical motorcycle) Engine Management Ypvs System: Yamaha Power Valve System (YPVS) controlled by an electronic servo motor to optimize exhaust port timing for improved powerband and low-end torque. 🔧 Maintenance Service Intervals Oil Change Interval: As per manual: Regular checks and top-ups of 2-stroke oil reservoir. Engine oil change (transmission oil) typically every 3,000-5,000 km or annually. Spark Plug Replacement: As per manual: Typically every 5,000-8,000 km, dependent on usage and plug type. Air Filter Cleaning: As per manual: Inspect every 2,000-3,000 km, clean or replace as needed. Fluid Specifications Coolant Type: Mixture of ethylene glycol-based antifreeze and distilled water (50:50 recommended) Brake Fluid Type: DOT 3 or DOT 4 (refer to manual for specific recommendation) Transmission Oil Capacity: Approx. 1.0-1.2 liters (refer to manual for exact capacity) Known Issues Common Problems: YPVS servo motor failures, crank seal leaks, carburetor jetting sensitivity, exhaust carbon buildup, clutch wear. Maintenance Tips General Advice: Regular cleaning of powervalves is crucial for optimal YPVS operation. Proper pre-mix ratio is vital. Keep carburetors clean and synchronized. 📚 Vehicle History Brand Heritage Yamaha Legacy: Yamaha has a long-standing reputation for performance motorcycles, particularly in the two-stroke era. Model Evolution Rd Series: The RD350 is part of Yamaha's celebrated RD series, known for their potent two-stroke engines and sporty handling. This generation introduced the YPVS system. Production Production Years: 1983-1995 (RD350 series, with variations) Manufacturing Location: Japan (primarily) 🏆 Awards & Recognition Recognitions Motorcycle Awards: While specific awards for the 1984-1986 model might not be individually documented widely, the RD series as a whole is highly regarded in motorcycle history for its performance and innovation.