🏷️ Basic Information Identification Make: Yamaha Model: RD350 Model Years Covered: 1972, 1973 Engine Type: Two-stroke, Parallel-twin Engine Displacement: 347 cc Codes Manual Code Identifier: Yamaha RD350 1972-1973 Factory Service Repair Manual 👋 Introduction Market Position Target Audience: Yamaha RD350 owners, mechanics, enthusiasts Competitive Analysis Manual Authenticity: Actual Genuine Repair Service Factory Manuals, not 3rd party Key Features Value Proposition: Save $50-$60 per hour on shop labor costs by performing servicing yourself Information Accessibility: Searchable PDF for easy information retrieval and printing of specific pages Content Breadth: Comprehensive information for all maintenance, repair, and tuning needs User Friendliness: Easy to use for owners regardless of computer skill level 📋 Manual Details Coverage Areas Manual Type: Factory Service Repair Manual Coverage Scope: Complete official factory documentation Styles Covered: All styles Page Count Estimated Page Count: Hundreds of pages Language Language: English Format File Format: PDF Delivery Method: Digital Download 📖 Manual Coverage Systems Covered General Information: Included Fuel System: Included Cooling System: Included Engine Top End: Included Clutch: Included Engine Lubrication System: Included Engine Removal Installation: Included Crankshaft Transmission: Included Wheels Tires: Included Final Drive: Included Brakes: Included Suspension: Included Steering: Included Frame: Included Electrical System: Included Appendix: Included Procedures Included Diagnostic Procedures: Comprehensive engine fault symptom diagnosis Repair Evaluation: Research and evaluation of best repair approaches Part Testing: Secret techniques for testing suspected parts Wiring Diagrams: Tracing and verification of wiring diagrams Engine Management Analysis: Understanding and analyzing engine management systems Common Fixes: Guidance on common fixes for owner communication Mechanic Evaluation: Tips for evaluating mechanics and asking pertinent questions Preventative Maintenance: Common tips for preventing escalating problems Troubleshooting Guide: Advanced troubleshooting guide Maintenance Procedures: Step-by-step maintenance guidance Repair Procedures: Detailed repair procedures Rebuilding Procedures: Complete rebuild instructions Restoration Guidance: Guidance for vehicle restoration Electrical Troubleshooting: Diagnosis and repair of electrical system problems Technical Depth Depth: Factory-trained technician level Detail Level: Every detail relating to the vehicle covered Illustration Quality: Includes all necessary illustrations, diagrams, and photos Instruction Format: Step-by-step numbered instructions Critical Information Highlight: Notes, cautions, and warnings throughout each chapter Diagram Matching: Bold figure numbers for quick illustration matching Part Identification: Enlarged insets for detailed part examination Navigation: Numbered table of contents for fast information retrieval 📊 Manual Specifications File Format File Type: PDF Print Quality Printability: Printable without restriction (entire manual or selected pages) Resolution: High resolution Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Compatibility Operating Systems: All PC-based Windows operating systems and Mac Requirements Software Requirement: Adobe PDF Reader Storage Storage Options: Save to hard drive, burn to CD-ROM ⚙️ Engine Specifications Primary Engine Engine Configuration: Parallel-twin, two-stroke, reed valve induction Bore X Stroke: 54.0 mm x 74.0 mm Compression Ratio: 6.2:1 (approx.) Carburetors: Dual 28mm Mikuni VM28SC Ignition System: CDI (Capacitor Discharge Ignition) Performance Horsepower At Rpm: Approx. 33 hp @ 7,500 rpm (claimed) Torque At Rpm: Approx. 23 lb-ft @ 7,000 rpm (claimed) Fuel System Fuel Delivery: Carbureted Fuel Type: Unleaded gasoline (premium recommended), 2-stroke oil pre-mix Fuel Tank Capacity: Approx. 4.5 gallons (17 liters) 🔧 Transmission Standard Transmission Type: 6-speed constant mesh Features Clutch Type: Wet, multiple disc 📐 Dimensions Exterior Wheelbase: Approx. 53.3 inches (1355 mm) Overall Length: Approx. 80.3 inches (2040 mm) Weights Dry Weight: Approx. 328 lbs (149 kg) 🛡️ Safety Features Ratings Safety Features Era: Basic safety features common for the era (e.g., dual circuit braking) Active Features Braking System: Front: Disc brake; Rear: Drum brake Passive Features Lighting: Headlight, tail light, turn signals 💡 Technology Features Infotainment Infotainment System: N/A (Focus on mechanical and electrical systems) Driver Assistance Driver Assistance Features: N/A Connectivity Connectivity Features: N/A 🔧 Maintenance Service Intervals Oil Change Interval: Refer to manual for specific intervals based on usage Spark Plug Replacement: Refer to manual for recommended intervals Chain Lubrication Adjustment: Regularly, as specified in manual Fluid Specifications Engine Oil Type: Specific 2-stroke oil blend (refer to manual for recommended mix ratio) Gearbox Oil Type: Yamalube Gear Oil or equivalent (refer to manual for specific viscosity) Brake Fluid Type: DOT 3 or DOT 4 (check manual for specific caliper requirements) Known Issues Common Wear Items: Piston rings, reed valves, clutch plates, crank seals (due to age and two-stroke nature) Carburetor Tuning: Sensitivity to altitude, temperature, and fuel quality; requires regular adjustment Electrical Connections: Corrosion and loosening of electrical connectors over time 📚 Vehicle History Brand Heritage Yamaha Motorcycles Legacy: Yamaha's reputation for performance and reliability in the two-stroke era Model Evolution Rd Series Significance: Part of the influential RD series, known for its sporty performance and 'Race Developed' DNA. Production Production Period For Models: 1972-1973 🏆 Awards & Recognition Recognitions Model Reputation: Highly regarded for its performance-to-weight ratio and handling in its class.