2005 Yamaha YZ250 Service Manual

Covers YZ250T1 (USA, CDN), YZ250 (Europe, ZA), YZ250T (AUS, NZ) with procedures for all service and repair operations. PN 1P81-28199-30

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Document Details

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Document Number / Seller:
26140 / Jerry Harris
File Size:
12.61 MB
File Type:
PDF
Language:
English, French, German, Italian
Pages:
596
Printable:
Yes
Category:
Bike
Last updated / verified
Dec 26, 2025

Models Covered & Key Technical Specifications

Yamaha YZ250 (Owner’s Service Manual) – YZ250T1 (USA, CDN), YZ250 (EUROPE, ZA), YZ250T (AUS, NZ) Competition Racing Machine 2005 Service-Catalog | 1P81-28199-30

General Information: Specifications & Operation Digest // Equipment-Series: YZ250 / Motorcycle Logic // Asset-ID: 2005

  • Calibrated Enclosure Specs: 1306 mm is designed for overall height measurement Standards.
  • System Addressable Resolution: For optimal operation, 26.9 degrees establishes the caster angle Topology.
  • Critical Clamp Forces: The formatter board requires 460 mm for installed spring length Bounds.
  • Universal Spacing Data: Clutch housing radial clearance is designed for 0.030~0.055 mm Norms.
  • Core Electrical Load: Standard torque specification is 14 Nm for the spark plug cap Parameters.
  • Standard Footprint Data: The power valve must be set at 5 N-m for proper function Standards.

Professional Workshop Service Manual & Technical Specifications

Full-Coverage Specification Electrical Manual: Bike Yamaha YZ250 (Owner’s Service Manual) – YZ250T1 (USA, CDN), YZ250 (EUROPE, ZA), YZ250T (AUS, NZ) Competition Racing Machine 2005 Service-Catalog

Conceptual-Layout: YZ250 (2005) // Equipment-Series: YZ250 Series / Motorcycle Logic // Asset-ID: 1P81-28199-30

Maintenance information covers

Metric Parameters Calibration-Data
General Information Operation Manuals Assembly Diagrams
Specifications Technical Data Maintenance Procedures
Regular Inspection and Adjustments Torque Settings Electrical Schematics
Engine Chassis Components Tuning Guidelines
Front Forks Rear Suspension Sprockets and Chain

Completely mandating fuel system procedures are documented for optimal performance and efficiency. Detailed adjustment procedures are provided for clutch and throttle controls. Technical notes offer guidance on electrical system diagnostics and troubleshooting. Quality checks are addressed for all major assemblies to ensure safety and longevity. The manual also provides a comprehensive overview of engine and chassis components, including diagrams and specifications for tune-up. This detailed reference ensures your machine is maintained to factory standards for peak performance. This manual documents torque specifications for various components to ensure proper clamp load consistency.

FAQ

What procedures are necessary for checking the **clutch** engagement? keyboard_arrow_down

8.0 mm is the specified clutch lever free play for proper engagement and operation.

Determine the **recommended** oil specification for transmission fluid. keyboard_arrow_down

Yamalube 4 (10W-30) or SAE 10W-30 type SE motor oil is recommended for transmission fluid.

What specifications are **calibrated** for the spark plug gap? keyboard_arrow_down

0.5~0.6 mm (0.020~0.024 in) is the calibrated spark plug gap specification.

Check the **applicable** torque specifications for the front brake caliper bolts. keyboard_arrow_down

23 Nm (2.3 m•kg, 17 ft•lb) is the applicable torque specification for the front brake caliper bolts.

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Reviews (4)

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Rated 5 out of 5 stars
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The download process was smooth, and I received the manual in my email right away. Highly recommend!
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This manual is a must-have for anyone with a YZ250. The detailed instructions have made maintenance a breeze!
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I had a question regarding some specs, and the support team responded almost immediately. Great service!