2007 Yamaha YZ85W1 Service Manual: Repair & Maintenance Guide

2007 Yamaha YZ85W1 Service Manual Overview

• Built for owners and workshops servicing the 2007 Yamaha YZ85W1, providing full technical reference for the liquid-cooled 2-stroke 85cc engine and chassis components
• Official Yamaha publication P/N LIT-11616-20-08, 5PA-28197-10
• Contains 47 exploded-view diagrams and 34 distinct tightening-torque tables for engine and chassis fasteners
• Downloads to your account within seconds of checkout
• Re-download the file any time, no expiration
• Indexed PDF search covers every chapter and appendix
• Laid out for standard letter and A4 printing
• This 2007 service document is the original factory reference for the 5PAG model build, essential for proper maintenance of the 84.7 cm3 displacement engine and link-type monocross rear suspension

Component and System Documentation

The 249-page document is segmented by system, detailing disassembly and assembly procedures for the engine, cooling system, and electrical components. The chapters guide the reader through the identification and handling of specialized internal parts, from the transmission gear ratios and reed valve specifications to the kick starter and shift shaft mechanisms. The chassis coverage provides specialized procedures for the front fork and rear shock absorber assemblies, ensuring that maintenance of the semi-double cradle frame and brake systems aligns with factory specifications.

Technical Data and Maintenance References

Detailed tables document critical engine specifications, including the 8.2:1 compression ratio and the 30:1 premix lubrication ratio required for the liquid-cooled engine. Electrical reference data is provided for the CDI magneto, including pickup coil resistance values specified at 248–372 ohms at 20 °C. The document also provides tightening torque values for every major fastener, such as the 79 Nm requirement for the primary drive gear and the 90 Nm setting for the rear wheel axle nut. The transmission oil capacity for periodic changes is documented at 0.50 liters.

Note: This page is a contents overview for the manual. It does not provide repair or diagnostic instructions. An official 249-page Yamaha OEM workshop manual covering the 2007 YZ85W1, documenting engine, chassis, electrical, and cooling system specifications for the 5PAG-series build.