Yamaha BRUIN 350 2X4 YFM350BAT 2004 2005 2006 ATV Service Owners Workshop Shop Repair Manual

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Type: Atv

Vendor:

Sku: 91652

Tags: 2004 2005 2006 ATV BRUIN 350 2X4 Bruin Models Powersports Yamaha YFM350BAT

Product variants

Description

This manual covers the ATV, model code YFM350BAT, for the 2004, 2005, and 2006 model years. Renowned for its reliable air-cooled engine, automatic transmission, and user-friendly 2WD drivetrain, the Bruin 350 is designed for both recreational trail riding and light utility tasks. Its robust engineering and strong heritage in powersports ensure a durable and capable machine, making it a popular choice for riders seeking a balance of comfort, performance, and dependability. This comprehensive service manual provides essential information for the maintenance, repair, and troubleshooting of your ATV. It details procedures for all major systems, including the engine, fuel, ignition, transmission, drivetrain, suspension, brakes, and electrical systems. With step-by-step instructions, clear illustrations, and detailed specifications, this manual is an invaluable resource for owners and technicians alike, ensuring the longevity and optimal performance of your ATV.

🏷️ Basic Information

Identification

Make:

Yamaha

Model:

Bruin 350 2x4

Model Code:

YFM350BAT

Product Type:

Generation

Model Years Covered:

2004, 2005, 2006

Codes

Chassis Code:

YFM350BAT

👋 Introduction

Market Position

Category:

Entry-level to mid-range utility ATV

Competitive Analysis

Competitors:

Honda FourTrax 350, Polaris Sportsman 335/400, Kawasaki Bayou 300/360

Key Features

Features:

Reliable air-cooled engine, automatic transmission, 2WD drivetrain for maneuverability, comfortable ride for recreational and light utility use

Target Audience

Demographic:

Recreational riders, light farm/ranch use, trail riding enthusiasts

Manual Purpose

Objective:

To empower owners and mechanics with comprehensive information for repair, maintenance, and troubleshooting

📋 Manual Details

Coverage Areas

Vehicle Model Years:

2004, 2005, 2006

Vehicle Trim Levels:

All 2x4 variants

Page Count

Estimated Pages:

Variable (typical for comprehensive workshop manuals can range from 300-800 pages, digital versions may vary)

Manual Type

Type:

Service Manual, Owners Manual, Workshop Manual, Shop Manual, Repair Manual, Factory Manual

Language

Language:

English

Format

Format:

Digital Download (PDF)

Delivery Method:

Instant Download

📖 Manual Coverage

Systems Covered

Engine:

Complete overhaul, inspection, troubleshooting, diagnosis, tuning

Fuel System:

Carburetor (Mikuni BSR33/42), fuel pump, fuel lines, fuel tank, troubleshooting fuel delivery

Ignition System:

CDI, spark plug, ignition coil, wiring, troubleshooting ignition problems

Transmission:

Automatic transmission (CVT), drive clutch, driven clutch, belt replacement, lubrication, troubleshooting

Drivetrain:

Rear drive shaft, differential, final drive, axle shafts, lubrication

Suspension:

Front and rear suspension systems, shock absorbers, control arms, bearings, adjustments, troubleshooting

Brakes:

Hydraulic disc brakes (front and rear), brake pads, brake calipers, master cylinders, brake fluid, bleeding, troubleshooting

Steering:

Handlebar assembly, steering stem, tie rods, steering knuckle, troubleshooting

Electrical System:

Wiring diagrams, battery, charging system (stator, regulator/rectifier), starter motor, lighting, switches, fuses, troubleshooting electrical faults

Cooling System:

Air-cooled engine specifications, cooling fins, airflow management

Frame And Bodywork:

Frame inspection, body panel removal/installation, fenders, seat, racks

Procedures Included

Maintenance:

Scheduled maintenance, oil changes, filter replacements, lubrication points, valve adjustments, spark plug replacement

Repair:

Complete repair procedures for all major and minor components

Troubleshooting:

Diagnostic procedures for common and uncommon problems, symptom-based troubleshooting guides

Rebuilds:

Engine rebuild, carburetor rebuild, transmission overhaul

Diagnostics:

Detailed diagnostic tests and fault code interpretation (if applicable)

Specifications:

Torque specifications, clearances, fluid capacities, electrical specifications

Technical Depth

Depth:

Comprehensive (from basic owner maintenance to complete engine and transmission rebuilds)

📊 Manual Specifications

File Format

Compatibility:

All operating systems (Windows, Linux, Mac), readable with any PDF reader

Portability:

Savable on multiple devices (computer, iPad, hard disk, etc.)

Print Quality

Printability:

Printable without restrictions

Binding Type

Type:

N/A (Digital)

Paper Type

Type:

N/A (Digital)

Illustrations

Quality:

Illustrated with clear step-by-step instructions, zoomable illustrations, exploded views

Searchability

Feature:

Likely searchable text within the PDF (depending on original source)

File Size

Range:

Can be large, up to 5 GB

⚙️ Engine Specifications

Primary Engine

Type:

4-stroke, SOHC, air-cooled, single-cylinder

Displacement:

348cc

Bore X Stroke:

83.0 mm x 64.5 mm

Compression Ratio:

9.2:1

Carburetor:

Mikuni BSR33/42

Performance

Horsepower Est:

~20 HP (estimated, actual figures may vary)

Torque Est:

~20 lb-ft (estimated, actual figures may vary)

Fuel System

Fuel Type:

Unleaded gasoline

Fuel Tank Capacity:

3.7 US gal (14 L)

Ignition System

Ignition Type:

CDI (Capacitor Discharge Ignition)

Lubrication

Oil Type:

Yamalube 4 (or equivalent SAE 10W-30 API SG or higher)

Oil Capacity:

1.80 US qt (1.7 L) (with oil filter replacement)

🔧 Transmission

Standard

Type:

Automatic (Yamaha Constant Velocity Transmission - Y-CVT) with high/low range and reverse

Optional

Type:

Features

Drive System:

2WD (Rear Wheel Drive)

Final Drive:

Shaft drive

Lubrication

Transmission Oil Type:

Yamalube SAE 80 hypoid gear oil

Transmission Oil Capacity:

0.16 US qt (0.15 L)

📐 Dimensions

Exterior

Length:

76.8 in (1950 mm)

Width:

43.7 in (1110 mm)

Height:

43.1 in (1095 mm)

Wheelbase:

49.2 in (1250 mm)

Ground Clearance:

10.0 in (254 mm)

Weights

Dry Weight:

540 lbs (245 kg)

Curb Weight:

~562 lbs (255 kg) (estimated)

Cargo

Front Rack Capacity:

45 kg (99 lbs)

Rear Rack Capacity:

85 kg (187 lbs)

Towing

Towing Capacity:

500 kg (1102 lbs)

Tires

Front Tire Size:

AT25x8-12

Rear Tire Size:

AT25x10-12

Wheels

Wheel Type:

Steel

Bolt Pattern:

4/110

🛡️ Safety Features

Ratings

Atv Safety Standards:

Designed to meet ANSI standards for recreational ATVs (manual will detail relevant safety precautions)

Active Features

Braking System:

Hydraulic disc front and rear, sealed drum rear parking brake

Throttle Limiter:

Thumb throttle with return spring

Passive Features

Lighting:

Dual 30W headlights, 35/35W brakelight/taillight

Operator Safety:

Footwells with heel guards, handlebar padding, kill switch with lanyard

💡 Technology Features

Infotainment

Features:

N/A (Basic utility/recreational ATV with no advanced infotainment system)

Driver Assistance

Features:

N/A (No electronic driver assistance features)

Connectivity

Features:

🔧 Maintenance

Service Intervals

Engine Oil Change:

Every 1000 km or 6 months (refer to manual for precise intervals based on usage)

Air Filter Cleaning:

Every 500 km or 3 months, or more frequently in dusty conditions

Spark Plug Inspection:

Every 1000 km or 6 months

Valve Clearance Check:

Every 2000 km or 12 months

Cvt Belt Inspection:

Every 2000 km or 12 months

Fluid Specifications

Engine Oil Spec:

SAE 10W-30 API SG or higher (Yamalube 4 recommended)

Gear Oil Spec:

SAE 80 hypoid gear oil (Yamalube)

Brake Fluid Spec:

DOT 3 or DOT 4 hydraulic brake fluid

Known Issues

Common Problems:

CVT belt wear, carburetor gumming if not used regularly, occasional electrical connection corrosion, starter motor issues (typical for older ATVs)

Preventative Measures:

Regular use, proper storage, consistent maintenance of air filter and carburetor, checking electrical connections

📚 Vehicle History

Brand Heritage

Heritage:

Yamaha has a long-standing history in powersports, known for reliable and innovative engines and vehicles. The 'Bruin' name signifies a durable and capable ATV.

Model Evolution

Lineage:

The Bruin series was positioned as a capable and user-friendly utility ATV, building on Yamaha's experience with models like the Kodiak. It offered a balance of comfort and performance for its class.

Production

Manufacturing Location:

Primarily manufactured in Japan or by Yamaha Motor Corporation's global facilities.

🏆 Awards & Recognition

Recognitions

Awards:

Not widely publicized specific awards for this particular model year, but Yamaha ATVs generally have a reputation for reliability and durability in consumer reviews and industry publications.