Target Audience:
        
        
            Owners of Yamaha DT125RE and DT125X models from 2005 seeking to perform maintenance, diagnostics, and repairs.
        
     
    
    
        
            Content Highlights:
        
        
            Comprehensive, step-by-step instructions, detailed illustrations, diagrams, specifications, troubleshooting guides, and 'secret techniques' used by top mechanics.
        
     
    
    
        
            Benefits For Owner:
        
        
            Empowers owners to make informed maintenance decisions, communicate effectively with mechanics, and potentially reduce repair costs.
        
     
 
    
    
    
        
            Covered Models:
        
        
            Yamaha DT125, DT125RE, DT125X (all styles for 2005)
        
     
    
    
        
            Estimated Page Count:
        
        
            Hundreds of pages (specific number not provided, but described as comprehensive)
        
     
    
    
        
            Manual Type:
        
        
            Factory Service Repair Manual
        
     
    
    
    
    
 
    
    
    
        
            Engine:
        
        
            Detailed coverage of engine systems including top end, lubrication, and internal components.
        
     
    
        
            Fuel System:
        
        
            Comprehensive details on the fuel delivery system, including carburetor settings and components.
        
     
    
        
            Cooling System:
        
        
            Information pertaining to the engine's cooling mechanisms.
        
     
    
        
            Clutch:
        
        
            In-depth coverage of clutch operation, maintenance, and repair procedures.
        
     
    
        
            Transmission:
        
        
            Detailed information on the gearbox, including removal, installation, and internal workings.
        
     
    
        
            Wheels Tires:
        
        
            Specifications and procedures related to wheels, tires, and their mounting.
        
     
    
        
            Final Drive:
        
        
            Coverage of the final drive mechanism, likely a chain drive system for this model.
        
     
    
        
            Brakes:
        
        
            Detailed information on both front and rear braking systems, including hydraulic components and disc/drum specifics.
        
     
    
        
            Suspension:
        
        
            Coverage of front forks and rear shock absorber systems, including adjustments and servicing.
        
     
    
        
            Steering:
        
        
            Procedures for steering system maintenance, including handlebar and fork adjustments.
        
     
    
        
            Frame:
        
        
            Information related to the motorcycle's chassis and frame components.
        
     
    
        
            Electrical System:
        
        
            Comprehensive coverage of the electrical system, including wiring diagrams, lighting, ignition, and battery.
        
     
    
        
            Troubleshooting:
        
        
            Advanced troubleshooting guide for diagnosing and correcting common and complex issues.
        
     
    
    
        
            Maintenance:
        
        
            Routine maintenance tasks, fluid changes, lubrication, and component checks.
        
     
    
        
            Repair:
        
        
            Step-by-step repair procedures for all major vehicle systems.
        
     
    
        
            Diagnostics:
        
        
            Detailed guidance on diagnosing engine fault symptoms and component issues.
        
     
    
        
            Rebuild:
        
        
            Procedures for complete engine or component rebuilds, as performed by factory technicians.
        
     
    
        
            Electrical Diagnosis:
        
        
            Specific procedures for tracing and verifying wiring diagrams and diagnosing electrical faults.
        
     
    
    
        
            Depth Of Information:
        
        
            Factory-level detail, suitable for professional technicians and advanced DIY enthusiasts. Covers fundamentals to intricate repairs.
        
     
 
    
    
    
        
            Engine Type:
        
        
            Likely a 124cc liquid-cooled, 2-stroke, single-cylinder engine (typical for DT125 models of this era).
        
     
    
    
        
            Horsepower:
        
        
            Specific figures not provided, but typically in the 15-20 HP range for this class.
        
     
    
        
            Torque:
        
        
            Specific figures not provided, but generally adequate for its dual-sport purpose.
        
     
    
    
        
            Carburetion:
        
        
            Likely equipped with a Mikuni carburetor (e.g., VM26 or similar).
        
     
    
        
            Fuel Type:
        
        
            Unleaded gasoline (with appropriate 2-stroke oil pre-mix or injection system, depending on specific variant).
        
     
    
    
        
            Oil System:
        
        
            Likely an oil injection system or requires manual oil mixing with fuel for lubrication.
        
     
 
    
    
    
        
            Oil Change:
        
        
            Specific intervals detailed in the manual, typically every few thousand kilometers or annually, depending on usage.
        
     
    
        
            Spark Plug Replacement:
        
        
            Intervals will be specified in the manual for optimal performance.
        
     
    
    
        
            Engine Oil:
        
        
            2-stroke engine oil, specific grade and type will be detailed (e.g., API TC rated).
        
     
    
        
            Coolant:
        
        
            If liquid-cooled, specific coolant type and mixture ratio will be provided.
        
     
    
        
            Brake Fluid:
        
        
            DOT 3 or DOT 4 brake fluid, as per Yamaha specifications.
        
     
    
    
        
            Common Wear Items:
        
        
            Clutch plates, piston rings, and fork seals are common wear items on 2-stroke motorcycles of this age and type.
        
     
    
        
            Carburetor Cleaning:
        
        
            Regular cleaning and adjustment of the carburetor may be necessary to maintain optimal running conditions.