🏷️ Basic Information Identification Make: Yamaha Model: DT125 / DT125R Product Name: Yamaha DT125 DT125R 1988-2002 Full Service Repair Manual PDF Download Codes Model Years Covered: 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 👋 Introduction Market Position Positioning: Essential resource for owners and technicians of Yamaha DT125/DT125R models from 1988-2002, providing comprehensive repair and maintenance information. Competitive Analysis Advantage: Offers a digital, instantly accessible format, eliminating shipping costs and wait times compared to physical manuals. Key Features Ease Of Use: Numbered instructions, bold figure numbers, and a detailed table of contents facilitate quick information retrieval. Visual Guidance: Includes detailed illustrations, drawings, photos, and enlarged inset views for clarity. Content Quality: Provides information equivalent to that used by professional technicians. 📋 Manual Details Coverage Areas Primary Coverage: Full service, repair, maintenance, rebuild, refurbishment, restoration Target Audience: Professional technicians, DIY mechanics Page Count Estimated Page Count: Highly detailed, extensive (specific count not provided, but implied to be comprehensive) Manual Type Type: Full Service Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Service: Complete engine overhaul, troubleshooting, diagnostics, component repair Transmission Service: Gearbox inspection, repair, and maintenance Electrical System: Detailed wiring diagrams, troubleshooting, diagnostics, component testing Fuel System: Carburetor tuning, fuel delivery system maintenance Cooling System: Radiator, hoses, coolant specifications and maintenance (if applicable to specific models) Chassis And Suspension: Fork, rear shock, swingarm, frame inspection and repair Braking System: Front and rear brake maintenance, bleeding, component replacement Exhaust System: Exhaust pipe and muffler inspection and maintenance Bodywork And Trim: Fairing, seat, tank removal and installation, cosmetic repairs Procedures Included Maintenance Procedures: Routine service, lubrication, filter changes, spark plug replacement Repair Procedures: Step-by-step instructions for all major and minor repairs Troubleshooting Guides: Diagnostic procedures for common and uncommon issues Diagnostics: Comprehensive diagnostic flowcharts and tests Rebuild Procedures: Detailed instructions for engine, transmission, and suspension rebuilds Wiring Diagrams: Complete and detailed electrical schematics Technical Depth Depth: Advanced diagnostics, complete engine rebuilds, electrical system troubleshooting, chassis overhauls 📊 Manual Specifications File Format Format: PDF Requirements: Adobe PDF Reader, WinRAR Compatibility: All Versions of Windows & Mac Print Quality Printability: Full Printable Digital Storage: Save to hard-drive, burn to CD-ROM Binding Type Binding Type: Digital Download (No physical binding) Paper Type Paper Type: N/A (Digital format) ⚙️ Engine Specifications Primary Engine Engine Type: 2-stroke, liquid-cooled (typical for DT125R, specific variants may exist) Displacement: 124cc (for DT125R, variations may exist across the model run) Performance Horsepower: Varies by year and specific model variant; typically in the 15-25 HP range. Torque: Specific figures vary by model year and tuning; indicative of a torquey, tractable engine for its class. Fuel System Carburetor: Mikuni VM series (common for this era and model, specific size varies by year). Fuel Type: Unleaded gasoline with 2-stroke oil pre-mix (or oil injection system, depending on specific model variant). Ignition System Type: CDI (Capacitor Discharge Ignition) Lubrication System: Yamaha Autolube (oil injection system) or pre-mix, depending on the specific model variant. 🔧 Transmission Standard Type: 6-speed constant mesh Features Clutch: Wet, multiple-disc Final Drive: Chain drive Fluid Requirements Transmission Oil: Yamalube 2-stroke oil (for Autolube system) or specified gear oil for the gearbox (manual will specify exact type and capacity). 📐 Dimensions Exterior Length: Varies by specific model year and configuration (typically around 2000-2100 mm) Width: Varies (typically around 800-850 mm) Height: Varies (typically around 1150-1200 mm) Weights Dry Weight: Approximately 105-115 kg (varies by specific model year and equipment) Wet Weight: Approximately 115-125 kg (with fluids, varies) Fuel Capacity: Approximately 10-12 liters (including reserve, varies by year) 🛡️ Safety Features Ratings Safety Features: Reflective elements, brake lights, turn signals (standard for street-legal models). Active Features Braking System: Front: Disc brake; Rear: Drum brake (common configuration, some later models may have rear disc). Passive Features Frame Construction: Steel semi-double cradle frame (typical for durability and rigidity). 💡 Technology Features Infotainment Features: Basic analog instrumentation: speedometer, tachometer, odometer, indicator lights. Driver Assistance Features: N/A (Designed for simplicity and mechanical operation) Connectivity Features: N/A 🔧 Maintenance Service Intervals Oil Change: As per manual recommendations; typically every few thousand kilometers or annually for gearbox oil, and regular checks for 2-stroke oil level. Air Filter Cleaning: Regular checks and cleaning/replacement based on riding conditions, as specified in the manual. Spark Plug Replacement: Periodic replacement based on mileage and condition, detailed in the manual. Chain Lubrication Adjustment: Frequent lubrication and adjustment required for optimal performance and longevity. Fluid Specifications Engine Oil Type: Yamalube 2-stroke oil or equivalent high-quality 2-stroke oil, either for pre-mix or the Autolube system. Transmission Oil Type: Specific gear oil (e.g., SAE 80W or 90) as recommended in the manual. Capacity will be specified. Coolant Type: If liquid-cooled, a permanent type antifreeze coolant mixture (specific formulation will be in the manual). Known...