1987 Yamaha TZR250 Motorcycle Service Manual

TZR250 service documentation with complete engine overhaul, cooling system, and carburetion specs. Includes power valve diagnostics and transmission assembly procedures. Technical reference PN 2MA.

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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 TZR250
Build Years: 1987
Serial Numbers: 2MA-000101 and following
Technical Data:

  • Engine displacement: 249 cm³
  • Engine type: Liquid-cooled 2-stroke, reed valve, forward-inclined parallel 2-cylinder
  • Compression ratio: 5.9:1
  • Transmission: Constant mesh 6-speed
  • Clutch: Wet, multiple disc
  • Carburetor: Mikuni TM28SS (2 pcs)
  • Spark plug: NGK BR9ES (2 pcs)
  • Fuel capacity: 16.0 L (4.23 US gal)
  • Wheelbase: 1,375 mm (54.1 in)
  • Seat height: 760 mm (29.9 in)
  • Starting system: Kick starter
  • Electrical system: 12V with A.C. magneto generator
Technical Specifications
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Document Number / Seller:
25296 / Nancy Reed
File Size:
50.34 MB
File Type:
PDF
Language:
English, French, German
Pages:
333
Printable:
Yes
Category:
Motorbike
Last updated / verified
Dec 17, 2025

Yamaha Manual Features & Content Preview

1987 Yamaha TZR250 Technical Documentation

  • Covers the 1987 Yamaha TZR250 liquid-cooled 2-stroke motorcycle with 249 cm³ engine
  • Original OEM publication P/N 2MA-28197-80
  • Contains 9 comprehensive chapters with detailed specifications, maintenance, and system diagrams
  • Accessible from your device as soon as the order is placed
  • OCR text layer lets you jump to a torque spec by keyword
  • Indexed PDF search covers every chapter and appendix
  • Full-text search finds any part number in seconds
  • Suitable for printing individual sections for shop-floor use
  • This 1987 service publication is the authoritative source for the 2MA-series build, detailing engine, chassis, and electrical configurations for the TZR250 line.

Document Scope and Structure

The 1987 Yamaha TZR250 service manual documents factory-recommended maintenance, engine overhaul, and chassis adjustment protocols. The opening section defines vehicle identification, special service tools, and general technical specifications. Subsequent chapters provide detailed procedures for periodic maintenance, engine disassembly, cooling system service, carburetor synchronization, chassis adjustments, and troubleshooting the electrical components and Y.P.V.S. system.

Specifications and Technical References

Technical content provides critical reference values including piston-to-cylinder clearance (0.050–0.055 mm) and crankshaft runout limits (0.03 mm). Engine oil capacity is specified at 1.4 liters for the autolube tank, while coolant system capacity documents 1.35 liters. The manual includes comprehensive torque specifications for major assemblies, such as cylinder head nuts (22 Nm) and crankcase flange bolts (24 Nm). For the electrical system, magneto pick-up coil resistance is documented at 94–140 ohms at 20°C. Further data includes timing charts for ignition advance, connector color codes, and cable routing illustrations. This 333-page Yamaha OEM service manual covers the 1987 TZR250, documenting engine, chassis, electrical, and fuel-system specifications for the 2MA-series motorcycle model.

Manual FAQ, Purchase & Download Details

Does the specification section in Chapter 2 include reference tables for general and maintenance values like bore and stroke, compression ratios, or fuel and coolant capacities? keyboard_arrow_down

Chapter 2 provides detailed specification tables that list technical reference categories including engine dimensions, cylinder volume, and fluid capacity matrices. These tables are organized to provide a central data reference for the TZR250 series.

What electrical system information, such as circuit diagrams and component references, is contained within the Chapter 8 electrical documentation? keyboard_arrow_down

Chapter 8 contains comprehensive circuit diagrams for the ignition, charging, lighting, and signal systems, alongside operational references for components like the Yamaha Power Valve System and oil level gauges.

Which formats and language options are available for this TZR250 service manual? keyboard_arrow_down

Document is provided as a digital PDF file that offers lifetime access on supported devices. The publication is written in English, German, and French to accommodate various user preferences. Following your purchase, the document is available for immediate download.

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