The Yamaha TT350 and TT350S models, produced from 1985 through 2000, represent Yamaha's dedication to robust and capable off-road and dual-sport motorcycles. Building on Yamaha's strong legacy in performance motorcycling, the TT series is known for its durability and effectiveness in various riding conditions. These air-cooled, single-cylinder machines, featuring a 5-speed transmission and a multi-plate wet clutch, offer a reliable platform for both recreational riding and demanding trails. Their engineering prioritizes straightforward functionality and rider engagement, making them enduring choices for enthusiasts. This comprehensive workshop service and repair manual provides essential information for the maintenance and repair of the Yamaha TT350/TT350S across its production years. It covers a wide array of systems, including detailed engine service, fuel and ignition systems, transmission, suspension, brakes, electrical components, frame, bodywork, and wheels. The manual includes step-by-step repair instructions, diagnostic guides for troubleshooting, and procedures for component overhauls, alongside essential maintenance schedules and fluid specifications. This resource is designed to assist professional technicians and DIY enthusiasts in keeping their Yamaha TT350/TT350S in optimal condition, ensuring longevity and performance. 🏷️ Basic Information Identification Make: Yamaha Model: TT350 / TT350S Model Years Covered: 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000 👋 Introduction Market Position Target Audience: Professional technicians, DIY enthusiasts, owners of Yamaha TT350/TT350S. Value Proposition: Provides essential information for maintaining and repairing the Yamaha TT350/TT350S across its production run, enabling cost savings on labor. Key Features Scope: Covers a wide range of model years, indicating a comprehensive resource. Format Advantage: Instant PDF download eliminates shipping costs and wait times, and allows for selective printing. 📋 Manual Details Coverage Areas Manual Type: Workshop Service Manual / Repair Manual Language: English Format: PDF Download Delivery Method: Instant Download 📖 Manual Coverage Systems Covered Engine Service: Complete overhaul, disassembly, assembly, tuning, diagnostics. Fuel System: Carburetor service, fuel tank, fuel lines, fuel pump (if applicable). Ignition System: CDI unit, spark plugs, wiring, timing. Transmission: Gearbox inspection, repair, clutch service, shift mechanism. Suspension: Front fork service (seals, oil), rear shock absorber, linkages. Brakes: Front and rear brake systems, caliper service, master cylinder, fluid replacement. Electrical System: Wiring diagrams, lighting, charging system, battery, starter. Frame And Bodywork: Frame inspection, body panel removal/installation, seat, fenders. Wheels And Tires: Spoke tension, wheel bearing service, tire information. Cooling System: Air-cooled engine specific maintenance. Procedures Included Maintenance Procedures: Periodic maintenance charts, lubrication, filter replacement, valve clearance checks. Repair Instructions: Step-by-step instructions for common and complex repairs. Troubleshooting: Diagnostic guides for identifying and resolving issues. Overhaul Procedures: Detailed guidance for complete engine or component rebuilds. Wiring Diagrams: Comprehensive electrical schematics for all systems. Technical Depth Depth: Comprehensive, suitable for professional technicians and advanced DIY mechanics. 📊 Manual Specifications File Format File Format: PDF Print Quality: Full Printable Zoom Functionality: Yes (Zoom In/Out) Searchable Text: Likely (standard for PDF manuals, though not explicitly stated). Requirements: Adobe PDF Reader, WinRAR Compatibility: All Versions of Windows & Mac ⚙️ Engine Specifications Primary Engine Engine Type: Single-cylinder, 4-stroke, air-cooled. Displacement: Approximately 347cc (specific variant may exist, refer to manual for exact details). Bore X Stroke: Refer to manual for exact specifications, typical for this era of Yamaha singles. Compression Ratio: Refer to manual for exact specifications. Performance Horsepower: Approximately 25-30 HP (est. varies by specific year/tune, consult manual for precise figures). Torque: Refer to manual for exact specifications. Fuel System Carburetor: Likely a single Mikuni carburetor (e.g., VM34 or similar), specific model detailed in manual. Fuel Type: Unleaded gasoline. 🔧 Transmission Standard Type: 5-speed constant mesh gearbox. Features Clutch: Wet, multi-plate clutch. Drive Type: Chain drive. 📐 Dimensions Exterior Overall Length: Refer to manual for exact specifications. Overall Width: Refer to manual for exact specifications. Overall Height: Refer to manual for exact specifications. Weights Dry Weight: Approximately 125-130 kg (est. varies by specific year/equipment, consult manual). Fuel Tank Capacity: Approximately 9-10 Liters (est. varies, consult manual). 🛡️ Safety Features Ratings Vehicle Type: Off-road/Dual-sport motorcycle. Active Features Brakes: Front: Drum or Disc brake; Rear: Drum brake (specifications vary by year and region, consult manual). Lighting: Headlight, taillight, brake light, turn signals (where applicable by regulation). 💡 Technology Features Infotainment Features: This model predates modern digital infotainment systems; features are purely mechanical and functional. Driver Assistance Features: No electronic driver assistance features; relies on rider skill and mechanical components. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 2,000-3,000 km or annually (consult manual for specific interval and oil type). Valve Clearance Check: Usually around 5,000-10,000 km, exact interval specified in manual. Air Filter Cleaning: Frequent checks and cleaning recommended, especially for off-road use, as per manual. Fluid Specifications Engine Oil Type: Yamalube 4 or equivalent motorcycle-specific SAE 10W-30 or 10W-40 API SG (verify in manual). Engine Oil Capacity: Refer to manual for exact capacity, typically around 1.5-2.0 liters with filter change. Brake...