Target audience:
Sport ATV riders, trail riders, and recreational users wanting a performance quad
Competitive advantage:
Long-running proven chassis with a reliable air-cooled 348cc engine; strong aftermarket support and simple maintenance
Key features:
Lightweight steel frame, long-travel suspension, 6-speed manual transmission, electric start
Repairability:
Simple mechanical design with minimal electronics makes DIY service straightforward
Manual type:
Complete factory-style workshop service and repair manual
Coverage areas:
General information, engine, fuel, drivetrain, chassis, electrical, troubleshooting
Page count:
N/A - not specified for this download
Delivery method:
Instant digital download
Compatibility:
PC, Mac, tablets, and smartphones
General information:
Vehicle identification, specifications, torque values, special tools
Periodic maintenance:
Service intervals, lubrication points, valve clearance checks
Engine removal and installation:
Complete step-by-step engine removal and refitting
Cylinder head and valves:
Inspection, valve clearance adjustment, reassembly
Piston and cylinder:
Measurements, wear limits, piston ring installation
Clutch:
Disassembly, inspection, adjustment, replacement
Transmission and shift mechanism:
Gear train layout, shift cam and forks, inspection limits
Carburetor and fuel system:
Disassembly, jetting, float height, tuning and synchronization
Air induction and exhaust:
Removal, inspection, spark arrester cleaning
Lubrication system:
Oil pump inspection, oil flow diagrams, oil change procedures
Cooling:
Air-cooled fin inspection and cleaning
Electrical system:
Wiring diagrams, CDI ignition, charging system, starter system
Front suspension and steering:
A-arm removal, bushing inspection, steering head bearing service
Rear suspension:
Shock, swingarm, and linkage removal, inspection, installation
Wheels and tires:
Removal, balancing, tire pressure specifications
Brakes:
Front disc and rear drum service, pad replacement, bleeding
Frame and body:
Fender and body panel removal, frame inspection
Troubleshooting:
Symptom-based charts for engine, drivetrain, and electrical faults
Technical depth:
Factory-level detail with exploded diagrams, torque specs, and wear limits
Parts information:
OEM part numbers referenced within exploded views throughout
File Format:
PDF (searchable, bookmarked, zoomable)
Compatibility:
Windows, macOS, Linux, iOS, and Android — any device with a PDF reader
Requirements:
A PDF reader application (e.g. Adobe Acrobat Reader, free)
Searchability:
Fully text searchable for fast lookup of any topic
Print Quality:
High-resolution digital pages, printable at full clarity
Binding Type:
N/A — digital download, no physical binding
Paper Type:
N/A — digital download, no physical paper
Crash test rating:
N/A - ATVs are not assigned automotive crash test ratings
Brakes:
Dual hydraulic front disc brakes, single rear disc
Parking brake:
Mechanical parking brake lock
Headlight:
Dual 30W halogen headlights
Taillight / brake light:
Standard fitted
Operator requirements:
Yamaha recommends helmet, eye protection, and ATV rider training
Engine oil change:
Every 1 month or 100 miles initially, then per Yamaha periodic chart
Valve clearance check:
Periodic inspection at scheduled intervals
Air filter service:
Clean and oil foam filter after every ride in dusty conditions
Chain lubrication:
Inspect and lubricate before each ride
Fluid specifications:
Yamalube 4-stroke engine oil, SAE 10W-40 typical; API SE or higher
Brake fluid:
DOT 4 hydraulic brake fluid
Coolant:
N/A - engine is air-cooled
Common wear items:
Chain and sprockets, brake pads, air filter, tires, swingarm bearings
Known issues:
Check valve clearances regularly; inspect steering stem and swingarm bearings for play on high-mileage units
Manufacturer:
Yamaha Motor Company, founded 1955, Japan
Model evolution:
The Warrior 350 (YFM350X) ran from 1987 to 2004; the 2001-2004 models were the final years of the production run before replacement by the Raptor 350
Production location:
Yamaha manufacturing facilities, Japan
Position in lineup:
Entry-to-mid level sport quad in Yamaha's ATV range
