Yamaha DT125RE DT125X Motorcycle Service Manual | 2005-2009

Complete OEM service manual for the 2005-2009 Yamaha DT125RE and DT125X motorcycles, covering engine overhaul, carburetor service, cooling system repair, chassis maintenance, and full electrical diagnostics. Everything a technician or owner needs to service, repair, and maintain these liquid-cooled 2-stroke trail and supermoto motorcycles. Delivered instantly as a fully searchable PDF compatible with any device. • Yamaha original service manual

• Adobe Acrobat (PDF) format
• Fully searchable
• Easily print any or all content
• Everything needed to repair & maintain your motorcycle
• Troubleshooting instructions, wiring diagrams, and reference material

• Yamaha DT125RE (Model Code 1D01/1D02)
• Yamaha DT125X (Model Code 2C81)

• GENERAL INFORMATION
• PERIODIC MAINTENANCE
• FUEL SYSTEM
• ENGINE TOP END
• ENGINE BOTTOM END
• CLUTCH & TRANSMISSION
• COOLING SYSTEM
• LUBRICATION SYSTEM
• ELECTRICAL SYSTEM
• SUSPENSION
• BRAKES
• CHASSIS & FRAME
• WIRING DIAGRAMS

• Complete engine disassembly and assembly procedures for the liquid-cooled 2-stroke single-cylinder powerplant
• Carburetor fuel system diagnostics including Mikuni TM28 jetting, float height, and air screw settings
• Electrical, ignition (CDI), and charging system procedures including magneto and regulator/rectifier testing
• Cooling system inspection, radiator service, water pump overhaul, and thermostat replacement
• Primary and secondary drive service including clutch, gear ratios, and chain drive procedures
• Transmission and gearbox overhaul for the 6-speed constant mesh unit
• Front fork and rear monocross suspension service including spring preload and oil level procedures
• Brake system inspection and hydraulic service for front and rear disc brakes
• Frame, bodywork, and fastener torque specifications
• Troubleshooting charts and diagnostic workflows
• OEM specifications and torque tables
• High-resolution wiring and system diagrams

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