2005 Yamaha TT-R125/TT-R125E/TT-R125LW/TT-R125LWE Owner's Service Manual

Technical Scope of the 2005 Yamaha TT-R125 Series Manual

• Covers 2005 Yamaha TT-R125, TT-R125E, TT-R125LW, and TT-R125LWE models, documenting both kick-start and electric-start variants
• Official Yamaha publication P/N 1B2-F8199-80, first edition dated June 2004
• Contains 56 pages of detailed service data, including exploded-view component diagrams, engine specs, and torque charts for chassis and engine fasteners
• No shipping wait — the PDF is available immediately after purchase
• Indexed PDF search covers every chapter and appendix
• Stored against your account so you can retrieve it after a hard-drive loss
• This 2005 first edition is the factory-authorized reference for the 1B2-series off-road motorcycle build, documenting essential specifications for standard maintenance and assembly

What the Manual Documents

The 2005 Yamaha TT-R125 service manual organizes complex information into six chapters, providing technicians and owners with a structured view of the machine. The first section documents what factory workshop documentation is structured to include, such as identification numbers, model codes, and necessary safety information regarding fuel handling and storage. Subsequent chapters move into clear definitions of terms, torque-check points for major assemblies, and procedural guidelines for the engine, chassis, and electrical systems.

Specification Highlights

Detailed tables within this document outline the essential performance metrics for the SOHC 124 cm³ engine, including valve clearances, piston ring end-gap limits, and bore sizes. Maintenance schedules and electrical reference values are listed to assist in system diagnosis. Engine oil capacity is documented at 1.0 liters for a periodic change, while the fuel tank capacity is specified at 6.6 liters. Spark plug gap is documented at 0.6–0.7 mm in the engine maintenance table. The steering head nut torque sequence is described in detail, with an initial tightening of 38 Nm followed by a final setting of 20 Nm. All service data shown here is for reference only — qualified technicians and the original OEM documentation remain the authoritative source for any hands-on work. This official 100-page Yamaha service manual covers the 2005 TT-R125/E/LW/LWE, documenting engine, chassis, electrical, and fuel-delivery specifications for the complete 1B2-series model line.