2008 Yamaha YP400X Majesty Service & Repair Manual (P/N LIT-11616-21-34)

• Covers 2008–2012 Yamaha YP400X Majesty maxi scooter variants, including the 5RUT model configuration with a liquid-cooled 4-stroke DOHC engine
• Official Yamaha publication P/N LIT-11616-21-34, first edition May 2007
• Documents key diagnostic data across 100 pages, featuring 25 tightening torque tables and specific cable routing diagrams for FI system components
• This 2007 first edition serves as the foundational reference for the YP400X Majesty series, delivering all baseline factory settings for the fuel injection and cooling systems

Operational Documentation

This manual outlines the technical baseline for maintaining the 395cc liquid-cooled powertrain and its associated chassis components. Inside, you will find general information alongside highly detailed engine specifications. It also covers system-specific data for the fuel injection assembly and cooling system. Whether you are a professional technician or an experienced garage builder, this reference provides the hard numbers needed for precise periodic maintenance. Expect exact figures on everything from cooling system capacities to V-belt replacement intervals and electrical diagnostic values.

Reference Data and Technical Specifications

Precision matters when working on the 5RUT-series build. Relying on exact factory specifications ensures safe and reliable vehicle operation, mitigating the risks associated with improper or guesswork maintenance. Engine assembly data is broken down through comprehensive tightening torque charts covering components from cylinder head covers to the transmission assembly. You get direct access to critical parameters. For instance, the idle conditions table documents intake vacuum at 36.0–42.0 kPa. The cylinder head specification table lists intake valve clearance at 0.15–0.20 mm, while coolant system capacity is strictly set at 1.57 liters.

This factory workshop documentation supports the systematic teardown and maintenance of cooling system components and electrical starting circuits. Rather than providing step-by-step repair walkthroughs, this OEM reference strictly catalogs the exact engine, chassis, electrical, and fuel-injection specifications you need to evaluate the vehicle and get the job done right.