The TTR 250 is a versatile lightweight dual-sport and enduro motorcycle, produced from 1999 through 2006. Renowned for its durable 4-stroke, SOHC, 4-valve, air-cooled 249cc engine, the TTR 250 offers user-friendly operation and reliable performance, making it an excellent choice for trail riders, recreational off-road enthusiasts, and those seeking adaptable transportation. Its capable suspension with approximately 270mm of travel at both the front and rear, combined with effective disc brakes, ensures a confident and enjoyable riding experience across varied terrains. This comprehensive workshop service repair manual, written in English, provides detailed information for the maintenance and repair of TTR 250 models from 1999 to 2006. It covers all essential systems, including engine mechanical and electrical components, fuel, clutch, transmission, suspension, steering, and braking systems, as well as bodywork and electrical systems. The manual includes step-by-step repair procedures, preventive maintenance schedules, troubleshooting guides, and electrical diagnostics, making it an indispensable resource for owners and technicians aiming to keep their TTR 250 in optimal condition. 🏷️ Basic Information Identification Make: Yamaha Model: TTR 250 Model Variants: Off-road/Dual-sport Generation Production Years Covered: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 Codes Engine Code: Likely 4ES (for 4-valve, 250cc SOHC, 4-stroke) Vin Code Year Representation: Varies by year (e.g., X for 1999, Y for 2000, 1 for 2001... 6 for 2006) 👋 Introduction Market Position Segment: Lightweight dual-sport/enduro motorcycle Target Audience: Trail riders, recreational off-road enthusiasts, commuters seeking versatile transport Competitive Analysis Key Competitors: Honda CRF230F, Kawasaki KLR250, Suzuki DR-Z250, older KTM 200/250 models Key Features Features Highlighted: Durable engine, capable suspension, user-friendly operation, reliability Manual Value Proposition Cost Effectiveness: Inexpensive way to maintain and repair the vehicle Information Source: Number one source for repair and service information 📋 Manual Details Coverage Areas Covered Years: 1999-2006 Geographic Coverage: Likely global, depending on original market release Page Count Estimated Page Count: High (typical for comprehensive workshop manuals, likely 300-500+ pages) Manual Type Type: Workshop Service Repair Manual Language Language: English Format Format: PDF (Downloadable) 📖 Manual Coverage Systems Covered Engine Mechanical: Yes (Top end, bottom end, valve train, cooling, lubrication) Engine Electrical: Yes (Ignition, charging, starting, CDI, sensors) Emission Control: Yes (If applicable to the model years/regions) Fuel System: Yes (Carburetor tuning, fuel lines, pump if applicable) Suspension System: Yes (Front forks, rear shock absorber, linkages) Clutch System: Yes (Clutch operation, plates, actuation) Transmission System: Yes (Manual transaxle, gear inspection, shifting mechanisms) Driveshaft Axle: Yes (Rear wheel drive components, sprockets, chain maintenance if applicable) Steering System: Yes (Handlebar, steering stem, bearings) Brake System: Yes (Front and rear brakes, hydraulic lines, calipers, master cylinders, pads) Body Interior Exterior: Yes (Body panels, seat, fenders, plastics) Body Electrical System: Yes (Lighting, instrumentation, wiring harnesses) Restraint System: Yes (Likely refers to rider safety features or specific tie-downs if applicable) Procedures Included Preventive Maintenance: Yes (Oil changes, filter replacements, chain adjustment, lubrication) Troubleshooting: Yes (Diagnostic procedures for various systems) Repair Procedures: Yes (Step-by-step instructions for component disassembly, repair, and reassembly) Electrical Diagnostics: Yes (Utilizing wiring diagrams for fault finding) Component Overhaul: Yes (Engine rebuilds, carburetor overhauls, suspension rebuilds) Technical Depth Depth: Comprehensive (Suitable for both DIYers and experienced mechanics, covers detailed repair and diagnostics) Diagnostic Tools: Implied use of standard motorcycle tools and possibly basic electrical testing equipment 📊 Manual Specifications File Format File Format: PDF Print Quality Printability: Fully Printable Zoom Functionality: Yes (Zoom IN/OUT) Binding Type Binding: N/A (Digital PDF) Paper Type Paper Type: N/A (Digital PDF) Software Requirements PDF Reader: Adobe PDF Reader Unzipping Tool: WinZip (or similar) Compatibility Operating Systems: All Versions of Windows & Mac ⚙️ Engine Specifications Primary Engine Engine Type: 4-stroke, SOHC, 4-valve, Air-cooled Displacement: 249cc (249 cm³) Bore X Stroke: 73.0 mm x 59.6 mm (typical for this engine family) Performance Horsepower Estimate: Approximately 20-23 HP (at the crank, dependent on specific tuning and region) Torque Estimate: Approximately 19-21 Nm (14-15 lb-ft) Fuel System Carburetor: Mikuni VM33 (typical for this model, may vary) Fuel Capacity: Likely around 10-12 Liters (2.6-3.2 Gallons) Ignition Ignition Type: CDI (Capacitor Discharge Ignition) Lubrication Oil Type Recommendation: Yamalube 4 (or equivalent API SE, SF, SG, SH, SJ, or higher quality SAE 10W-40 or 20W-50 motorcycle oil) Oil Capacity With Filter Change: Approximately 1.5-1.8 Liters (1.6-1.9 US qt) 🔧 Transmission Standard Transmission Type: Constant-mesh 6-speed sequential Optional Transmission Options: N/A (Only manual transmission offered) Features Clutch Type: Wet, multiple-disc, cable-actuated Final Drive: Chain drive 📐 Dimensions Exterior Overall Length: Approx. 2150 mm (84.6 in) Overall Width: Approx. 830 mm (32.7 in) Overall Height: Approx. 1205 mm (47.4 in) Seat Height: Approx. 875 mm (34.4 in) Wheelbase: Approx. 1405 mm (55.3 in) Weights Dry Weight: Approx. 120 kg (265 lbs) Wet Weight: Approx. 127 kg (280 lbs) Suspension Travel Front Suspension Travel: Approx. 270 mm (10.6 in) Rear Suspension Travel: Approx. 270 mm (10.6 in) 🛡️ Safety Features Ratings...