2005 Yamaha YZ450FT Service Manual

Shop manual for the 2005 Yamaha YZ450FT, covering engine, chassis, electrical, and tuning systems. PN LIT-11626-18-44.

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Technical Safety Notice
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This official OEM document is intended for professional technicians and skilled operators. Performing service on mechanical equipment involves inherent risks. By purchasing, you acknowledge that RepairLoader provides original manufacturer data for informational purposes. Always prioritize safety: use correct tools, wear protective gear, and consult a certified professional if you are uncertain of any procedure.

Yamaha Models Covered & Key Technical Specifications

Models: Yamaha YZ450FT, Yamaha YZ450F
Trade Names: YZ Series
Build Years: 2005
Serial Numbers: 5XD5, 5XD6, 5XD8
Technical Data:

  • Engine displacement: 449 cm3
  • Engine type: Liquid cooled 4-stroke, DOHC, single cylinder
  • Transmission: 4-speed, constant mesh
  • Compression ratio: 12.3:1
  • Starting system: Kick starter
  • Ignition system: CDI magneto
  • Tire pressure (front and rear): 100 kPa (1.0 kgf/cm2, 15 psi)
  • Fuel capacity: 7.0 L (1.54 Imp gal, 1.85 US gal)
Technical Specifications
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Document Number / Seller:
28973 / Ashley Parker
File Size:
13.06 MB
File Type:
PDF
Language:
English
Pages:
303
Printable:
Yes
Category:
Motorcycle
Last updated / verified
Jan 31, 2025

Yamaha Manual Features & Content Preview

2005 Yamaha YZ450FT and YZ450F Technical Documentation

  • Covers 2005 Yamaha YZ450FT and YZ450F liquid-cooled 4-stroke motocross competition machines
  • Official Yamaha publication P/N 5XD-28199-11, first edition 2005
  • Contains 47 detailed exploded-view diagrams for engine and chassis systems and 15 torque-check reference charts
  • Delivered as a direct download the moment payment clears
  • Indexed PDF search covers every chapter and appendix
  • Stored against your account so you can retrieve it after a hard-drive loss
  • No DRM restrictions on the print function
  • This 303-page manual serves as the primary technical reference for the 5XD-series YZ450FT build, including specific tuning data for US, Canadian, European, and Australian market variants

Contents and Technical Scope

The 2005 Yamaha YZ450FT service manual documents all procedures for maintenance, inspection, and component repair for the YZ450FT and YZ450F series. The manual provides detailed instructions on the how factory workshop documentation is structured for components including the 449 cm3 engine, 4-speed transmission, fuel delivery, and chassis geometry. It covers servicing the Keihin FCR MX39 carburetor, valve clearance adjustments, and detailed engine assembly data including cam chain and balancer maintenance.

Specifications and Reference Values

The 2005 Yamaha YZ450FT manual provides critical technical data for assembly and routine maintenance intervals. Crankshaft runout limit is specified at 0.03 mm. Valve clearance for the intake is listed at 0.10–0.15 mm in the cylinder head specification table. Cylinder head bolt torque values are documented in a multi-stage sequence, with final-stage angles of 180° specified in the engine assembly data. The carburetor pilot screw setting is typically 1-3/4 turns out from seated. The manual lists fluid capacities and torque specifications for components including the cylinder head, clutch, and front fork adjustments, offering precision data for competition-ready maintenance. An official 303-page Yamaha OEM workshop manual covering the 2005 YZ450FT and YZ450F, documenting engine, chassis, electrical, and fuel-injection specifications for the 5XD-series build.

Manual FAQ, Purchase & Download Details

Are specific publication numbers and edition identifiers listed on the cover of this service manual? keyboard_arrow_down

Manual cover includes document identifiers such as LIT-11626-18-44 and 5XD-28199-11. These publication numbers confirm the document identity for the 2005 Yamaha YZ450FT model.

Does this manual include exploded diagrams for component disassembly? keyboard_arrow_down

Document contains exploded views at the start of each removal and disassembly section to help identify parts and clarify the order of operations.

Can I find lubrication reference data and fluid information in the provided specification tables? keyboard_arrow_down

Chapter 2 lists lubrication diagrams and maintenance specifications that include technical reference categories. These tables provide comprehensive service data for the various components without including procedural instructions.

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