1990 Yamaha Raptor 350 ATV Service Manual

Field service reference for the 1990 Yamaha Raptor 350 ATV. Documents maintenance, repair, and troubleshooting procedures. Part number LIT-11616-07-50.

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Yamaha Models Covered & Key Technical Specifications

Models: Yamaha Raptor 350, YFM350XA
Build Years: 1990
Serial Numbers: 3GD-051101 (Engine), JY43GDW0*LC051101 (Frame)
Technical Data:

  • Engine displacement: 348 cc
  • Engine type: 4-stroke, gasoline, SOHC, single cylinder
  • Compression ratio: 9.2:1
  • Bore x Stroke: 83 x 64.5 mm
  • Compression pressure: 850 kPa (121 psi) standard
  • Lubrication system: Wet sump
  • Transmission: 6-speed forward, 1-speed reverse
  • Final drive: Chain
  • Drive chain type: 520V6/DAIDO, 98 links
  • Clutch type: Wet, multiple-disc
  • Starter system: Electric
  • Ignition system: C.D.I. Magneto
  • Front suspension: Double wishbone
  • Rear suspension: Swingarm (Link Suspension)
  • Tire size (F/R): AT21 x 7-10 / AT22 x 10-9
Technical Specifications
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Document Number / Seller:
28969 / Lisa Allen
File Size:
82.43 MB
File Type:
ZIP
Language:
English
Printable:
Yes
Category:
ATV
Last updated / verified
May 27, 2025

Yamaha Manual Features & Content Preview

Yamaha Raptor 350 — 1990 Official Workshop Documentation

  • Built for owners and workshops servicing the 1990 Yamaha Raptor 350 YFM350XA with the 348 cc 4-stroke engine
  • Official Yamaha publication P/N LIT-11616-07-50, first edition May 1990
  • Contains 12 detailed wiring diagrams and over 40 technical specification tables for engine, chassis, and electrical systems
  • Downloads to your account within seconds of checkout
  • Your order stays downloadable from your account for life
  • Laid out for standard letter and A4 printing
  • Full-text search finds any part number in seconds
  • Reference only — always consult a certified technician before performing service on this equipment
  • This 1990 first edition is the factory-authorized reference used for the original YFM350XA model launch

Factory Technical Scope

This 1990 Yamaha Raptor 350 service manual provides the essential specifications and internal mechanical data required for maintaining the YFM350XA. Chapters detail the complete engine overhaul process, including disassembly and assembly of the cylinder head, transmission, and balancer shafts. The manual also covers the 6-speed constant mesh transmission and the wet-sump lubrication system, providing clarity on internal component wear limits and required tolerances.

Engine and Electrical Specifications

Specifications documented for the 1990 Yamaha Raptor 350 include torque values, fluid capacities, and electrical reference thresholds. Intake valve clearance is listed at 0.06–0.10 mm in the cylinder head specification table. Battery charging current is documented at 1.2 amps at 10 hours. The YFM350XA spark plug gap is specified at 0.6–0.7 mm for the D8EA plug type. Electrical data covers the C.D.I. ignition timing, starter motor resistance, and lighting system circuits. For additional context on how factory workshop documentation is structured, visit what an OEM service publication covers for a detailed breakdown of these technical resources.

An official 86-page Yamaha OEM workshop manual covering the 1990 Yamaha Raptor 350, documenting engine, chassis, electrical, and fuel-injection specifications for the YFM350XA build.

Manual FAQ, Purchase & Download Details

Does this manual provide component breakdown diagrams or exploded views to help understand how parts fit together? keyboard_arrow_down

Each chapter includes detailed exploded diagrams for the various systems to assist with the identification of components and their assembly. These illustrations are organized by section to match the sequential layout of the document.

What is the publication number for this Yamaha Raptor service manual? keyboard_arrow_down

Manual is identified by the publication number LIT-11616-07-50.

Which specific revision details are included in this edition? keyboard_arrow_down

Document represents the first edition published in May 1990. It contains the original technical specifications and component data for the YFM350XA model. Future updates and modifications to procedures are managed by the manufacturer and may appear in subsequent editions.

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