2001-2002 Yamaha YZ250(P)/LC, YZ250, YZ250P1 & YZ250LC Service Manual

250cc competition motocross machine service data — covers image formation, paper feed, and field-replaceable units. Publication 5NX-28199-30.

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Document Details

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Document Number / Seller:
26139 / Emily Diaz
File Size:
15.16 MB
File Type:
PDF
Language:
English, Italian, German, French
Pages:
584
Printable:
Yes
Category:
Bike
Last updated / verified
Dec 26, 2025

Models Covered & Key Technical Specifications

2001-2002 Yamaha YZ250(P)/LC, YZ250, YZ250P1 & YZ250LC Service Manual

250cc competition motocross machine service data — covers image formation, paper feed, and field-replaceable units. Publication 5NX-28199-30. Strategic Specification Registry

  • Prescribed Rotation Data: 300 mm corresponds to the maximum front fork travel Topology.
  • Standard Shipping Weight: For 250 cc class, 98 kg establishes the maximum operational capacity Topology.
  • Core Rated Data: For optimal operation, 115 N-m signifies the active torque specification Standards.
  • Rated Fluid Levels: The coolant requires 1.20 L for standard operation Protocol.
  • Calibrated Wattage Specs: Maximum throughput reaches 460 mm Wheel travel Topology.
  • Nominal Linear Velocity: The oil capacity defines 573 cm3 framework.

Professional Workshop Service Manual & Technical Specifications

Integrated Engineering Calibration Manual: Bike Yamaha YZ250(P)/LC, YZ250, YZ250P1 & YZ250LC Competition Motocross Machine Owner's Service Manual 2001-2002 System-Standards

Model-Portfolio: YZ250(P)/LC, YZ250, YZ250P1 & YZ250LC Competition Motocross Machine // Documentation-Type: Owner's Service Manual / 7 Chapters // Technical-Benchmarks: 249 cc displacement, Kick starter This manual provides a foundational understanding of the Yamaha YZ series, detailing its features, operation, and maintenance. It serves as an essential resource for mechanics and owners alike.

Carefully establishing specific procedures is key to maintaining optimal performance and longevity. Diagnostic procedures are covered for engine performance and troubleshooting. Wiring diagrams are provided for the electrical system, aiding in maintenance and repair. Fuel system procedures are documented for the carburetor and fuel delivery system. Adjustment procedures are detailed for clutch, brakes, and suspension systems. Timing procedures are documented for the ignition and valve systems, ensuring precise operation. Technical Specs Component Operational-Logic Validation-Data
Engine Type Liquid cooled 2-stroke, gasoline Meets competition standards
Displacement 249 cm3 Verified for performance
Carburetor PWK38S/KEIHIN Meets specified air/fuel mixture
Front Fork Travel 300 mm Verified for smooth suspension operation
Rear Shock Absorber Coil spring/oil damper Meets rebound damping specifications
Clutch Type Wet, multiple-disc Verified for smooth engagement

The Table of Contents (TOC) provides a comprehensive overview of the manual's structure, allowing for efficient navigation to specific sections such as Engine, Chassis, Electrical, and Tuning. Major sections focus on engine overhaul, chassis maintenance, electrical system diagnostics, and tuning procedures. The manual also includes detailed torque specifications for critical components, ensuring correct assembly and preventing damage. Maintenance schedules are outlined to guide regular upkeep, promoting reliability and longevity. This document is crucial for any owner or technician responsible for the care and repair of the Yamaha YZ250.

FAQ

What are the **proper** clearance measurements for the YZ250? keyboard_arrow_down

8~13 mm (0.31~0.51 in) is the specified free play for the clutch lever.

Specify the **standard** torque specifications for critical fasteners. keyboard_arrow_down

105 Nm (10.5 m•kg, 75 ft•lb) is the specified torque for the rear wheel axle nut.

What is the **necessary** safety precautions before operating this machine? keyboard_arrow_down

Always wear protective apparel including an approved helmet with goggles or a face shield, heavy boots, gloves, and protective clothing.

Calculate the **recommended** lubrication requirements for the drive chain. keyboard_arrow_down

SAE 10W-30 motor oil or suitable chain lubricants are recommended for the drive chain, with a specified slack of 40~50 mm (1.6~2.0 in).

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Reviews (5)

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This manual is incredibly detailed and easy to follow. The troubleshooting tips saved me a lot of time! Highly recommended.
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The step-by-step instructions are a lifesaver. Download process was smooth, and customer support was very helpful!
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The specifications and maintenance procedures are clear and easy to understand. Support was quick to respond when I had questions.
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I love how comprehensive this manual is. It covers everything you need for maintenance. Quick download too!
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Rated 4 out of 5 stars