2006 Yamaha YZ450F(W) Service Manual

This 2006 Yamaha YZ450F(W) service manual details engine, chassis, electrical, and tuning procedures. PN 2S2-28199-81

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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 YZ450F(W)
Sub-models / Variants: YZ450FW (USA, CDN, AUS, NZ), YZ450F (Europe, ZA)
Trade Names: YZ450F, YZ450FW
Build Years: 2006
Serial Numbers: 2S27 (USA, CDN), 2S28 (EUROPE), 2S2A (AUS, NZ, ZA)
Technical Data:

  • Engine displacement: 449 cm3
  • Engine type: Liquid cooled 4-stroke, DOHC, single cylinder
  • Bore × stroke: 95.0 × 63.4 mm (3.74 × 2.50 in)
  • Compression ratio: 12.3:1
  • Engine idle speed: 1,900 ~ 2,100 r/min
  • Transmission type: Constant mesh, 5-speed
  • Coolant system capacity: 0.99 L (1.05 US qt)
  • Engine oil capacity: 1.2 L (1.27 US qt) total amount
  • Tire pressure: 100 kPa (15 psi)
  • Radiator core width: 120.2 mm (4.73 in)
  • Caster angle: 26.8° – 26.9°
Technical Specifications
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Document Number / Seller:
26128 / Melissa Phillips
File Size:
16.53 MB
File Type:
PDF
Language:
English, French, German
Pages:
650
Printable:
Yes
Category:
Bike
Last updated / verified
Oct 24, 2025

Yamaha Manual Features & Content Preview

2006 Yamaha YZ450F(W) Manual

  • Covers the 2006 Yamaha YZ450F(W) liquid-cooled motocross competition series, including international variants for North American, European, and Oceanian markets
  • Official Yamaha publication P/N 2S2-28199-81, first edition July 2006
  • Features 120+ mechanical exploded-view diagrams, extensive torque-check point charts, and electrical system schematics for the CDI ignition
  • File link appears in your order confirmation straight away
  • Stored against your account so you can retrieve it after a hard-drive loss
  • Full-text search finds any part number in seconds
  • Laid out for standard letter and A4 printing
  • This first edition serves as the foundational documentation for the 2006 YZ450F(W) launch architecture, providing essential maintenance specifications for engine tuning and chassis setup

Operational and Maintenance Documentation

This 2006 Yamaha YZ450F(W) service manual provides detailed information regarding machine operation, basic maintenance, and inspection of the YZ series racing platforms. The text defines fundamental inspection routines, including how factory workshop documentation is structured to facilitate maintenance of critical systems like the constant-mesh 5-speed transmission, liquid cooling assembly, and CDI-based ignition system. Sections transition from identifying model-specific labels and serial numbers to proper storage preparation, ensuring that the 449 cm3 power plant remains protected during off-season periods.

Specifications and Reference Data

Technical data previews include comprehensive torque-check point maps for the cylinder head, balancer, and suspension linkages to ensure structural integrity across the frame and engine mounting hardware. The coolant system capacity for this model is documented at 0.99 liters. Valve clearance for the intake is listed at 0.10–0.15 mm in the cylinder head specification table. The Yamaha YZ450F(W) magneto pick-up coil resistance is specified at 248–372 ohms. Reference tables provide clear limits for camshaft runout, piston ring end gaps, and clutch friction plate thicknesses to assist in diagnosing wear limits. An official 650-page Yamaha OEM workshop manual covering the 2006 YZ450F(W), documenting engine, chassis, electrical, and fuel-tuning specifications for the 2S2-series build.

Manual FAQ, Purchase & Download Details

Can I find wiring diagrams and electrical system references for the 2006 Yamaha YZ450F in this service manual? keyboard_arrow_down

Document includes an electrical chapter that covers various system components and schematics for the machine. These sections contain reference data to help you understand the electrical layout and connections.

Which chapters contain the specification tables and service data for the YZ450F? keyboard_arrow_down

Manual features dedicated specification chapters and maintenance sections that list important data such as fluid capacities, idling speeds, and various machine performance benchmarks.

What kind of technical reference information, such as tightening specifications and clearance values, is included in this 650-page document? keyboard_arrow_down

Manual contains comprehensive specification tables that list torque-check points, maintenance intervals, and technical thresholds for the engine and chassis components. It also provides exploded diagrams to help you locate parts and reference their assembly orientation.

Does the manual provide a breakdown of the specific chapters covered for this model? keyboard_arrow_down

Document is organized into seven distinct chapters including General Information, Specifications, Regular Inspection and Adjustments, Engine, Chassis, Electrical, and Tuning.

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