1990 Yamaha YFM350XA Warrior 350 ATV Service Manual

Technical reference for the Yamaha Warrior 350 ATV models, including the YFM350XA. Documents maintenance and repair procedures for optimal performance. PN 270-001.

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Document Details

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Document Number / Seller:
25768 / Patrick King
File Size:
40.77 MB
File Type:
PDF
Language:
English
Pages:
333
Printable:
Yes
Category:
ATV
Last updated / verified
Dec 24, 2025

Models Covered & Key Technical Specifications

YAMAHA YFM350XA Warrior 350 (Part Number N/A) -- 1990 Consolidated Guide for Unit | Advanced Troubleshooting Manual. Certified Securement Values: 40 Nm (4.0 m•kg, 29 ft•lb) tightening torque corresponds to cylinder head bolts. General Fluid Capacity: The oil capacity is 2.4 L (2.11 Imp qt, 2.53 US qt). Design Gap Specs: Spark plug gap is set at 0.6 – 0.7 mm (0.024 – 0.028 in). Engineered Power Draw: The ignition system is rated at 12V. Verified Print Rate: The front brake disc outer diameter achieves 161 mm (6.34 in). Factory Tension Specs: The rear suspension spring rate is 53.9 N/mm (5.5 kg/mm, 308 lb/in).

Manual Description & Preview

Advanced Troubleshooting Manual: ATV Official Yamaha YFM350XA Warrior 350 ATV Service Manual - Dealer Technician Edition 1990 Technical-Repository

System-Coverage: YFM350XA, YFM350XE, YFM350XJ, YFM350XKC, YFM350XP // Specification-Class: 333 Pages / ATV Logic // Conceptual-Layout: 40.7713 MB

Component Value Logic
Model Code 3GD5 Standard
Vehicle Identification Number JY43GDW0*LC051101 Configuration
Engine Type 4-stroke, gasoline, SOHC, Single cylinder Parameters
Bore x Stroke 83 x 64.5 mm (3.27 x 2.54 in) Benchmarks
Compression Ratio 8.2 : 1 Mapping
Oil Capacity 2.4 L (2.11 Imp qt, 2.53 US qt) Baseline

Documentation sections include maintenance procedures, specifications, engine overhaul, carburetion, chassis, electrical systems, and troubleshooting.

Timing procedures are documented for engine timing checks to ensure proper operation and performance.

Technical notes are provided for component identification and removal.

Quality checks are addressed for various systems to maintain optimal condition.

The front brake system documents replacement procedures.

The troubleshooting chapter addresses common issues.

Reliably demanding an expert approach, this document details procedures for all major systems. It covers engine, transmission, brakes, suspension, and electrical systems. The manual provides diagnostic and repair information for the Yamaha Warrior 350, helping technicians maintain optimal vehicle condition. It documents torque specifications for critical fasteners to ensure proper assembly and cyclic stress resistance.

FAQ

Are fluid capacities, lubricant types, and maintenance specification tables included for the 1990 Yamaha YFM350XA? keyboard_arrow_down

Manual includes comprehensive specification tables that list engine oil capacities for periodic changes and filter replacements. It also contains guidance on recommended motor oil grades and lubrication systems.

Does the document provide detailed chapter coverage for the engine, chassis, and electrical systems? keyboard_arrow_down

Table of contents shows structured chapters dedicated to engine overhaul, carburetion, chassis components, and electrical systems for the YFM350XA.

Can I preview whether this manual covers the 1990 Yamaha YFM350XA Warrior 350 model variant? keyboard_arrow_down

Product information and cover page confirm that this manual is specifically compiled for the 1990 Yamaha YFM350XA Warrior 350. It serves as a dedicated reference for this unit, referencing its specific vehicle and engine serial number prefixes.

Is there information about tightening specifications or technical tolerances for components? keyboard_arrow_down

Specification chapters list general torque data and various maintenance tolerances for engine and chassis systems.

What should I know about accessing the PDF after purchase? keyboard_arrow_down

Manual is provided as a digital PDF document that is available for instant download immediately following your payment. It is formatted in English and is designed for use on various digital devices to provide lifetime access to the reference material. The complete document contains 333 pages of technical information including diagrams and specification tables.

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