2003-2008 Yamaha YZ450F Parts Catalog

Yamaha YZ450F 2003–2008 Parts Documentation

• Fits 2003–2008 Yamaha YZ450F and YZ450FR off-road motorcycles including 5TA1, 5TA2, and 5TA4 variants
• Official Yamaha publication P/N LIT-11626-16-38, first edition June 2002
• Contains 47 detailed exploded-view diagrams covering engine, chassis, and electrical sub-assemblies
• Accessible from your device as soon as the order is placed
• Indexed PDF search covers every chapter and appendix
• Full-text search finds any part number in seconds
• This 2002 first edition is the base reference used for the 2003 YZ450FR launch build, capturing original factory specifications for the inaugural production series

Document Architecture

Assembly and Part Breakdown

This publication provides exhaustive what an OEM service publication covers by detailing the component breakdown for the 2003–2008 Yamaha YZ450F. Chapters are logically organized by system, starting from the primary engine components like the cylinder head, camshaft, crankshaft, and transmission, moving through the fuel system, chassis, electrical components, and concluding with detailed suspension adjustments and tuner-specific hardware configurations.

Component Reference Data

The documentation includes extensive tables listing part numbers, descriptions, and quantities for fasteners and assemblies. The engine data section lists a 449 cc displacement with a 12.5:1 compression ratio for the 5TA1-series YZ450FR. Cylinder head bolt torque values are documented in a multi-stage sequence, with final-stage angles specified in the engine assembly data. The liquid cooling system capacity for the YZ450F is documented at 1.2 liters. Valve clearance for the intake is listed at 0.10–0.15 mm in the cylinder head specification table.

An official 300-page Yamaha OEM parts catalog covering the 2003–2008 YZ450F, documenting component numbers, exploded diagrams, and assembly hardware for the 5TA-series build.