2002 Yamaha TT-R125(P) / TT-R125LW(P) Service Manual

Yamaha TT-R125 and TT-R125LW Technical Documentation

• Covers 2002 Yamaha TT-R125 and TT-R125LW, including TT-R125P and TT-R125LWP trim variations
• Official Yamaha publication P/N 5HP-28199-83
• Contains dozens of exploded-view diagrams, torque-check point maps, and comprehensive maintenance specification tables
• File link appears in your order confirmation straight away
• OCR text layer lets you jump to a torque spec by keyword
• This 2002 edition is the primary service reference for the TT-R series, detailing factory maintenance intervals and technical limits

Operational and Maintenance Scope

This factory service publication provides the mechanical foundation for maintaining the 2002 Yamaha TT-R125 and TT-R125LW platforms. The document details the inspection and adjustment procedures for the engine, chassis, and electrical systems, ranging from routine upkeep to major overhauls. It includes sections on cylinder head and piston maintenance, transmission adjustments, and carburetor tuning, alongside the necessary cable routing diagrams for the various sub-models.

Technical Specification Highlights

The 2002 Yamaha TT-R125 engine compression ratio is specified at 10.0:1 in the engine maintenance section. Cylinder head warp limits are documented at 0.03 mm as a maximum service threshold. The intake valve cold lash setting is defined at 0.08–0.12 mm within the engine specification charts. The 2002 Yamaha TT-R125 utilizes a 6.6 L fuel tank capacity, with 1.9 L designated as the reserve allocation.

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 506-page Yamaha OEM workshop manual provides detailed service specifications and maintenance schedules for the 2002 TT-R125 and TT-R125LW off-road motorcycle models.