1992 Yamaha YZ250D1 Service Manual

1992 YZ250D1 service documentation with exploded diagrams and detailed part breakdowns. Includes electrical system and engine tuning procedures. PN LIT-11626-07-91.

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Document Details

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Document Number / Seller:
27358 / Paul Morris
File Size:
37.65 MB
File Type:
ZIP
Language:
English
Printable:
Yes
Category:
Bike
Last updated / verified
Jun 22, 2025

Models Covered & Key Technical Specifications

1992 Yamaha YZ250D1 Owner's Service Manual

YZ250D1 (LIT-11626-07-91) | 1992 Edition. Packet

  • Measured Cycle Rate: 2.7 mm (0.106 in) defines the maximum friction plate thickness.
  • Fundamental Rotation Data: For drivetrain applications, 30-35 mm (1.2-1.4 in) establishes the chain slack measurement.
  • Baseline Installation Footprint: 8.5 L (1.87 Imp gal, 2.25 US gal) signifies the total fuel tank capacity.
  • Integral Threaded Fastener Data: The clutch spring free length requires 37.1 mm (1.46 in) for proper operation.
  • Operational Alignment Specs: 0.5 mm (0.020 in) signifies the maximum allowable wheel axle bending.
  • Critical Output Performance: 104-156Ω at 20°C (68°F) represents the pickup coil resistance value.

Professional Workshop Service Manual & Technical Specifications

Integrated Service Technical Manual: 1992 Yamaha YZ250D1 owner´s service manual

System-Identifier: YZ250D1 // Technical-Scope: Engine / Chassis Logic // System-Identifier: Complete Procedures.

Performance-Element System-Path Calibration-Standards
Overall Dimensions Chassis 2,195 mm (86.4 in)
Overall Width Chassis 850 mm (33.5 in)
Overall Height Chassis 1,233 mm (48.5 in)
Seat Height Chassis 978 mm (38.5 in)
Wheelbase Chassis 1,495 mm (58.9 in)
Minimum Ground Clearance Chassis 398 mm (15.7 in)

Integrated service sections encompass general information, specifications, regular inspection and adjustments, engine, chassis, electrical systems, and tuning. This Analytical manual documents procedures and technical details for the YZ250D1 model. Procedures for engine removal and installation are included, alongside detailed specifications for all components. Systems covered include the engine, chassis, and electrical setup. This manual also includes information on starting and break-in procedures. Documents torque specifications for engine mounting bolts to ensure proper pressure slip prevention.

Steering component information is provided for the steering system, including inspection and adjustment of the steering head.

Inspection guidelines are provided for the front and rear brakes, including pad wear and fluid level checks.

Alignment specifications are included for the drive chain and sprockets.

Reference data is included for the front and rear suspension systems.

This manual covers the complete electrical system, including the ignition timing and CDI magneto.

FAQ

Reference the **specific** tool requirements for this YZ250D1. keyboard_arrow_down

YU-24460-01/90890-01325 are listed for the Radiator Cap Tester, and YU-33984/90890-01352 for the adapter.

What are the **essential** electrical values for the CDI unit? keyboard_arrow_down

3SP/YAMAHA is the manufacturer for the Magneto-Model/Manufacturer, with a range of 256-340Ω at 20°C (68°F) for Charging Coil 1 Resistance (Color).

Specify the **correct** calibration settings for the drive chain slack. keyboard_arrow_down

30-35 mm (1.2-1.4 in) is the specified range for drive chain slack adjustment.

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Reviews (2)

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This service manual is incredibly detailed and easy to understand. The download process was seamless and I received the link in my email almost instantly! Highly recommend for anyone looking to maintain their bike.
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Rated 4 out of 5 stars