🏷️ Basic Information Identification Make: Yamaha Model: TTR90 Year: 2000 Codes Engine Code: Not specified, but likely a variation of Yamaha's SOHC 4-stroke air-cooled single-cylinder used in similar models. Generation Generation Identifier: First Generation TTR90 👋 Introduction Market Position Segment: Entry-level youth off-road motorcycle. Target Audience: Beginner off-road riders, youth riders, and families looking for a fun and reliable recreational dirt bike. Competitive Analysis Competitors: Likely competed with models from Honda (e.g., XR70/CRF70), Kawasaki (e.g., KLX100), and Suzuki (e.g., DR-Z70/DRZ110) in its class. Key Features Distinguishing Features: Known for its reliable engine, user-friendly operation, and suitability for young riders developing off-road skills. Yamaha's reputation for build quality is a key selling point. 📋 Manual Details Coverage Areas Coverage Scope: Complete official full factory service repair manual for all styles of the Yamaha TTR90 2000. Page Count Estimated Page Count: Hundreds of pages (exact count not specified but implies comprehensive coverage). Manual Type Type: Workshop Service Repair Manual Manual Purpose: Designed to be the primary resource for all maintenance, repair, troubleshooting, and technical information required for the Yamaha TTR90 2000. Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Covered Systems: General Information, Fuel System, Cooling System, Engine Top End, Clutch, Engine Lubrication System, Engine Removal/Installation, Crankshaft/Transmission, Wheels/Tires, Final Drive, Brakes, Suspension, Steering, Frame, Electrical System, Appendix. Engine Top End Coverage: Detailed procedures for cylinder head, valves, camshaft, piston, and rings. Clutch Coverage: Inspection, removal, disassembly, and reassembly of the clutch assembly. Lubrication System Coverage: Oil pump, oil passages, oil filter (if applicable), and lubrication flow. Crankshaft Transmission Coverage: Engine disassembly to crankshaft and transmission components, including gears, shafts, bearings, and shifting mechanisms. Wheels Tires Coverage: Wheel removal and installation, spoke tensioning (if applicable), tire mounting and dismounting, tube replacement. Final Drive Coverage: Chain and sprocket inspection, adjustment, and replacement. Brake Coverage: Drum brake shoe inspection, adjustment, and replacement; brake linkage and cable maintenance. Suspension Coverage: Front fork inspection, seal replacement, oil level and type; rear shock absorber inspection and maintenance. Steering Coverage: Handlebar, steering stem, and steering head bearing inspection and adjustment. Frame Coverage: Frame inspection for damage, seat mounting, and related components. Electrical System Coverage: Ignition system, lighting, charging system (if applicable), wiring diagrams, troubleshooting common electrical faults. Procedures Included Included Procedures: Step-by-step instructions for complete disassembly, repair, and service procedures. Includes troubleshooting and electrical service procedures combined with detailed wiring diagrams. Diagnostic Procedures: Comprehensive troubleshooting sections for diagnosing mechanical and electrical issues, often with flowcharts or symptom-based problem solving. Troubleshooting Electrical: Specific focus on diagnosing and repairing electrical system issues, integrated with detailed wiring diagrams for ease of use. Technical Depth Depth: Professional quality, in-depth service and repair. Suitable for both do-it-yourself enthusiasts and experienced mechanics. Covers detailed substeps, notes, cautions, and warnings. Special Tools: Likely lists required special tools for specific procedures, such as flywheel pullers, clutch holding tools, etc. Illustrations Photos: Includes hundreds of photos and illustrations, with enlarged inset views to clearly guide the reader through procedures. 📊 Manual Specifications File Format Format: PDF Compatibility: Compatible with all PC-based Windows operating systems and Mac. Can be burned to CD-ROM. Print Quality Printability: Printable without any restriction. Binding Type Binding: Digital download (printable as a physical document). Paper Type Paper Type Recommendation: Standard printer paper for home printing, or professional binding for a workshop copy. ⚙️ Engine Specifications Primary Engine Engine Type: 4-stroke, SOHC, air-cooled single-cylinder. Performance Displacement: 88cc (typical for this model designation). Horsepower: Estimated to be in the range of 6-8 HP (exact specification available in manual). Torque: Estimated to be in the range of 5-7 Nm (exact specification available in manual). Fuel System Carburetor Type: Likely a Mikuni VM series carburetor, specific size to be detailed in manual (e.g., VM15/VM16). 🔧 Transmission Standard Transmission Type: Semi-automatic (clutch lever operated by hand, but shifting is done with the foot lever, with clutch engagement and disengagement automated). Optional Optional Transmissions: N/A for this model. Features Gear Count: Typically 4-speed. 📐 Dimensions Exterior Seat Height: Approx. 665 mm (26.2 in) - *This is an approximate typical value for the model, manual will confirm exact spec*. Overall Length: Approx. 1555 mm (61.2 in) - *Manual will confirm exact spec*. Overall Width: Approx. 715 mm (28.1 in) - *Manual will confirm exact spec*. Overall Height: Approx. 915 mm (36.0 in) - *Manual will confirm exact spec*. Weights Wet Weight: Approx. 70 kg (154 lbs) - *This is an approximate typical value for the model, manual will confirm exact spec*. Dry Weight: Approx. 67 kg (148 lbs) - *Manual will confirm exact spec*. 🛡️ Safety Features Ratings Safety Standards Adherence: Designed to meet applicable safety standards for youth off-road motorcycles of its era. Active Features Braking System Type: Front: Drum Brake; Rear: Drum Brake (Manual will detail specific drum dimensions and mechanisms). Passive Features Frame Construction:...