2000-2001 Yamaha TT-R125(M)Service & Repair Manual • P/N 5HP-28199-80, edition November 1999

2000–2001 Yamaha TT-R125 Technical Overview

• Covers the 2000–2001 Yamaha TT-R125(M) and TT-R125MC (5HP-series), including US, Canadian, Australian, New Zealand, and European regional variants.
• Official Yamaha OEM publication P/N 5HP-28199-80, 100-page first edition from November 1999.
• Features 35 exploded-view diagrams, 27 detailed torque tables, and multiple wiring configuration summaries for efficient repair planning.
• Fully searchable PDF format lets you jump instantly to a specific torque spec or part number.
• Instant download available immediately after purchase.

Manual Organization and Workshop Utility

The manual is divided into six structured chapters: general information, specifications, regular inspection, engine, chassis, and electrical components. It lays out the exact component sequence mechanics need to properly maintain or tune the bike. Instead of guessing, you get a clear breakdown of the machine's anatomy right from the factory.

Engine, Chassis, and Electrical Specifications

You will find extensive baseline data essential for daily workshop tasks. This includes critical wear limits for the cylinder bore and piston rings, along with exact valve clearances for intake and exhaust. During engine assembly, the documentation lists the cylinder head bolt torque at 22 Nm. For chassis setup, it specifies a tire pressure of 100 kPa for the stock 70/100-17 front and 90/100-14 rear tires. Electrical diagnostics are heavily supported as well. The manual provides reference values like the CDI magneto pickup coil resistance (248–372 ohms) and the secondary ignition coil resistance (6.3–9.5 k-ohms), plus complete cable routing diagrams for the entire harness.

Keep in mind that all technical values provided here serve strictly as a descriptive overview of the manual's contents. Any actual hands-on mechanical work or advanced repair should only be performed by a qualified technician using the complete OEM documentation to ensure safe and correct procedures.