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Yamaha

Yamaha BRUIN 350 400 Service Repair Manual 04-06

Yamaha BRUIN 350 400 Service Repair Manual 04-06

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Vehicle data plateRef 26662
Brand
Yamaha
Vehicle
ATV
Models covered
BRUIN 350, BRUIN 400, Bruin Models
Years
2004, 2005, 2006
Format
PDF, searchable, print-ready
Delivery
Instant download after checkout
Language
English

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  • The same link is emailed to you — re-download any time
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  • Not sure it covers your model year? Ask us before you buy
🏷️ Basic Information
Identification
Make:
Yamaha
Model:
Bruin
Model Variant:
350 / 400
Model Years Covered:
2004, 2005, 2006
👋 Introduction
Market Position
Target User:
ATV enthusiasts, DIY mechanics, repair shops, and owners seeking to maintain or repair their Yamaha Bruin.
Value Proposition:
Provides comprehensive, authoritative technical guidance to enable owners to perform a wide range of maintenance and repair tasks, saving on labor costs and ensuring proper vehicle function.
Competitive Analysis
Competitor Manuals:
This manual competes with factory service manuals, other aftermarket repair guides, and online forums by offering a consolidated, detailed, and officially recognized source of information.
Key Features
Detail Level:
Extremely high level of detail, covering everything from routine checks to complete overhauls.
Organization:
Features a comprehensive table of contents for easy navigation and quick access to specific information.
Illustrations Diagrams:
Implied to contain numerous illustrations and diagrams to aid in understanding complex procedures.
📋 Manual Details
Coverage Areas
Manual Type:
Service Repair Manual
Language:
English
Format:
PDF
Page Count:
Hundreds of pages (specific count not provided in product description)
📖 Manual Coverage
Systems Covered
Engine:
Detailed diagnostics, repair, rebuild procedures for all engine components, including top-end, bottom-end, cooling system, lubrication system, and ignition system.
Transmission:
Coverage for transmission inspection, disassembly, reassembly, adjustments, and fluid specifications.
Drivetrain:
Front and rear differential service, drive shafts, CV joints, and wheel hub maintenance.
Suspension:
Front and rear suspension component inspection, replacement, and alignment procedures.
Brakes:
Brake system diagnostics, master cylinder, caliper, rotor, brake line, and bleeding procedures.
Steering:
Steering column, tie rods, rack and pinion, and steering column adjustments.
Electrical System:
Battery, charging system (stator, regulator/rectifier), starting system, lighting, instrumentation, and wiring diagrams.
Fuel System:
Carburetor service and adjustment, fuel pump, fuel lines, and fuel tank maintenance.
Cooling System:
Radiator, fan, thermostat, water pump, and coolant specifications.
Exhaust System:
Muffler, exhaust pipes, and gasket replacement.
Body And Frame:
Chassis inspection, body panel removal and installation, seat, and rack components.
Procedures Included
Maintenance:
Scheduled maintenance, oil changes, filter replacements, lubrication points, and general upkeep.
Troubleshooting:
Diagnostic charts for common problems and their solutions across all vehicle systems.
Repair:
Step-by-step repair instructions for virtually every component and system on the ATV.
Rebuild:
Detailed procedures for complete engine and transmission rebuilds.
Disassembly Reassembly:
Comprehensive guidance for taking apart and putting back together all major vehicle assemblies.
Wiring Diagrams:
High-quality, detailed wiring schematics for accurate electrical troubleshooting and repair.
Technical Depth
Diagnostic Tools:
Information on required tools, specialized equipment, and diagnostic procedures.
Torque Specifications:
Precise torque values for all fasteners and critical components.
Clearances And Tolerances:
Specifications for critical component clearances and wear tolerances.
Service Limits:
Information on component wear limits and when parts should be replaced.
Performance Tuning:
While not primarily a tuning manual, it provides the baseline specifications for proper engine operation.
📊 Manual Specifications
File Format
File Format:
PDF (Portable Document Format)
Searchability:
Likely text-searchable PDF, enabling quick information retrieval.
Print Quality:
High-quality digital reproduction, designed for clear printing of diagrams and text.
Binding Type
Binding Type:
Not applicable (Digital PDF download)
Paper Type
Paper Type:
Not applicable (Digital PDF download)
⚙️ Engine Specifications
Primary Engine
Engine Type 350:
348cc, 4-stroke, SOHC, 2-valve, air-cooled, single-cylinder
Engine Type 400:
386cc, 4-stroke, SOHC, 2-valve, liquid-cooled, single-cylinder
Bore X Stroke 350:
83 mm x 64.5 mm (approximate, requires manual verification)
Bore X Stroke 400:
94 mm x 69 mm (approximate, requires manual verification)
Compression Ratio 350:
9.2:1 (typical, requires manual verification)
Compression Ratio 400:
8.8:1 (typical, requires manual verification)
Performance
Horsepower 350:
Approx. 17-20 HP (requires manual verification)
Horsepower 400:
Approx. 21-24 HP (requires manual verification)
Torque 350:
Approx. 18-20 lb-ft (requires manual verification)
Torque 400:
Approx. 23-25 lb-ft (requires manual verification)
Fuel System
Fuel Delivery 350:
Mikuni BSR33 carburetor
Fuel Delivery 400:
Mikuni BSR33 carburetor
Fuel Type:
Unleaded gasoline, minimum 87 octane
🔧 Transmission
Standard
Transmission Type:
Automatic (Ultramatic®), V-belt, automatic transmission
Gear Selection:
High, Low, Neutral, Reverse
Optional
Transmission Options:
N/A (all models in this range feature the Ultramatic® transmission)
Features
Drive System:
2WD/4WD selectable, shaft drive
Final Drive:
Sealed chain, sprockets, and drive shafts
📐 Dimensions
Exterior
Length:
Approx. 76.4 in (1940 mm) (requires manual verification)
Width:
Approx. 44.3 in (1125 mm) (requires manual verification)
Height:
Approx. 44.1 in (1120 mm) (requires manual verification)
Wheelbase:
Approx. 49.2 in (1250 mm) (requires manual verification)
Cargo
Front Rack Capacity:
Approx. 88 lbs (40 kg) (requires manual verification)
Rear Rack Capacity:
Approx. 176 lbs (80 kg) (requires manual verification)
Weights
Dry Weight 350:
Approx. 525 lbs (238 kg) (requires manual verification)
Dry Weight 400:
Approx. 569 lbs (258 kg) (requires manual verification)
Towing Capacity:
Approx. 1,124 lbs (510 kg) (requires manual verification)
🛡️ Safety Features
Ratings
Atv Classification:
Utility ATV
Active Features
Braking System:
Hydraulic disc brakes front and rear.
Parking Brake:
Mechanical parking brake, typically integrated into the rear brake caliper or a separate drum.
Passive Features
Lighting:
Dual halogen headlights and a taillight/brake light for visibility.
Ignition Systems:
CDI ignition system for reliable spark.
💡 Technology Features
Infotainment
Infotainment Features:
Basic instrumentation typically includes speedometer, odometer, trip meter, and indicator lights. No advanced infotainment systems are featured.
Driver Assistance
Driver Assistance Features:
Focus is on core mechanical and electrical systems, not electronic driver aids.
Connectivity
Connectivity Options:
N/A
🔧 Maintenance
Service Intervals
Engine Oil Change:
Every 1,000 km or 6 months (typical, consult manual for precise interval).
Air Filter Cleaning:
Every 300 km or as needed in dusty conditions (consult manual).
Spark Plug Inspection:
Every 1,000 km or 6 months (consult manual).
Gear Oil Change:
Every 6,000 km or 2 years (typical, consult manual).
Fluid Specifications
Engine Oil Type:
Yamalube 4 (or equivalent) SAE 10W-40 API SG or higher (consult manual for exact specification).
Engine Oil Capacity:
Approx. 1.7 L / 1.8 US qt (without filter change), 1.9 L / 2.0 US qt (with filter change) (requires manual verification).
Coolant Type 400:
Yamaha Coolant 50% or equivalent ethylene glycol-based coolant (requires manual verification).
Coolant Capacity 400:
Approx. 1.7 L / 1.8 US qt (requires manual verification).
Known Issues
Common Wear Items:
CV boots, brake pads, tires, battery, and drive belts are common wear items requiring periodic inspection and replacement.
Carburetor Cleaning:
Carburetors may require periodic cleaning and adjustment, especially if the ATV is stored for extended periods.
Charging System Issues:
Stator or regulator/rectifier failures can occur, impacting battery charging. Manual provides diagnostic steps.
📚 Vehicle History
Brand Heritage
Yamaha Legacy:
Yamaha Motor Corporation is renowned for its long history in motorsports, motorcycles, and marine engines, bringing a legacy of engineering and reliability to its ATV line.
Model Evolution
Bruin Introduction:
The Bruin series was Yamaha's entry into the mid-size utility ATV market, offering a balance of power, comfort, and capability.
Model Differences:
The 350 model offered a lighter, air-cooled engine for basic utility tasks, while the 400 provided increased power and liquid cooling for more demanding applications.
Production
Manufacturing Location:
Typically manufactured in Japan or by Yamaha's global manufacturing partners.
Model Successors:
The Bruin was succeeded by Yamaha's Grizzly line, which incorporated more advanced features and performance.
🏆 Awards & Recognition
Recognitions
Industry Recognition:
While specific awards for the Bruin are not readily publicized, Yamaha ATVs have consistently been recognized for their reliability and performance in the utility segment.
Ratings
Consumer Reports:
Consumer satisfaction and reliability ratings for Yamaha ATVs are generally high.

Delivery & file format

This is a digital PDF download, not a printed book. After payment the download link appears on your order confirmation page and is emailed to the address you entered. Files open in any PDF reader on phone, tablet or computer and can be printed.

Check the model year and engine before you buy

Manufacturers change procedures, wiring and part numbers between model years and engine options. If your VIN plate shows a year or engine code that is not listed on the data plate above, contact us with the model, year and VIN and we will confirm coverage before you order.

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