Yamaha Yfz450 Yfz-450 2012-2013 Factory Service Repair Manual

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Tipo: Atv

Proveedor:

SKU: 96828

Etiquetas: 2012 2013 ATV Powersports Yamaha YFZ Models Yfz-450 Yfz450

Variantes de producto

Descripción

This manual covers the YFZ450, a high-performance sport ATV produced for the 2012-2013 model years. Renowned for its powerful, liquid-cooled, fuel-injected 449cc engine and lightweight aluminum frame, the YFZ450 offers race-inspired ergonomics and long-travel, fully adjustable suspension. Its robust design and agile handling make it a formidable machine for enthusiasts and racers alike, competing strongly in its segment. The YFZ450 is engineered for exceptional off-road capability, featuring strong hydraulic disc brakes and a 5-speed manual transmission with a wet, multi-plate clutch for precise control. This Factory Service Repair Manual provides comprehensive guidance for the maintenance and repair of your YFZ450. It details essential procedures including engine overhaul, fuel and ignition system servicing, transmission and drivetrain maintenance, suspension and brake system repairs, and electrical system diagnostics. The manual includes troubleshooting guides, technical specifications such as torque values and fluid capacities, and assembly/disassembly instructions with exploded views. This resource is invaluable for owners, mechanics, and technicians seeking to ensure the optimal performance, reliability, and longevity of their YFZ450.

🏷️ Basic Information

Identification

Make:

Yamaha

Model:

YFZ450

Model Designation:

YFZ-450

Product Type:

Factory Service Repair Manual

Generation

Generation Identifier:

2012-2013 Model Years

Codes

Oem Manual Code Reference:

Likely derived from Yamaha's internal service documentation structure, specific code not provided.

👋 Introduction

Market Position

Category:

High-performance sport ATV.

Target Audience:

Enthusiasts, racers, off-road riders, mechanics.

Competitive Analysis

Segment:

Competed against models like the Honda TRX450R, Suzuki LT-R450, and Kawasaki KFX450R.

Key Features

Engine:

High-revving, liquid-cooled, single-cylinder, fuel-injected engine.

Chassis:

Lightweight, strong aluminum frame with race-inspired ergonomics.

Suspension:

Long-travel, fully adjustable suspension for superior off-road capability.

Braking:

Powerful hydraulic disc brakes front and rear.

📋 Manual Details

Coverage Areas

Primary Coverage:

Comprehensive service and repair for Yamaha YFZ450 (2012-2013).

Specific Topics:

Troubleshooting, maintenance schedules, repair procedures, component identification, wiring diagrams.

Page Count

Estimated Page Count:

Typically 300-600 pages for a comprehensive factory service manual of this nature. Specific count not provided.

Manual Type

Type:

Factory Service Repair Manual (Shop Manual)

Language

Language:

English

Format

Format:

File Format:

Software Requirements:

Adobe Acrobat Reader, WinZip (or similar decompression utility).

Compatibility:

Windows and Mac operating systems.

Searchability:

Likely text-searchable PDF, allowing for quick information retrieval.

📖 Manual Coverage

Systems Covered

Engine:

Complete engine overhaul, disassembly, assembly, tuning, diagnosis, internal components (pistons, cylinders, valves, camshafts, crankshaft).

Fuel System:

Fuel injection system (EFI), fuel pump, injectors, throttle body, fuel pressure regulator, fuel tank, fuel lines, fuel filter.

Ignition System:

Ignition coil, CDI unit, spark plug, wiring, timing.

Cooling System:

Radiator, cooling fan, coolant pump, hoses, thermostat, coolant specifications.

Transmission Drivetrain:

Clutch system (operation, adjustment, replacement), transmission disassembly, reassembly, lubrication, chain drive, final drive.

Suspension:

Front and rear suspension systems, shock absorbers, springs, linkages, adjustment procedures, bearing maintenance.

Brakes:

Hydraulic brake system, brake calipers, master cylinders, brake lines, brake pads, brake discs, bleeding procedures, fluid specifications.

Steering:

Handlebar assembly, steering stem, steering bearings, tie rods, steering column.

Electrical System:

Battery, charging system (stator, rectifier/regulator), starter motor, lighting system, switches, fuses, wiring harness.

Frame Chassis:

Frame inspection, welds, mounting points, body panels, plastics, seat, fenders.

Wheels Tires:

Wheel bearing maintenance, tire pressure, rim specifications, lug nut torque.

Procedures Included

Maintenance:

Scheduled maintenance, oil changes, filter replacements, chain lubrication and adjustment, spark plug replacement, air filter cleaning/replacement.

Troubleshooting:

Systematic diagnostic procedures for common and uncommon problems, fault code interpretation (if applicable), symptom-based troubleshooting.

Repair:

Detailed step-by-step instructions for component removal, installation, rebuilding, and adjustment for all major systems.

Diagnostics:

Specific diagnostic tests for electrical components, fuel system, ignition system, and mechanical systems.

Assembly Disassembly:

Exploded views and detailed instructions for complete teardown and reassembly of the ATV.

Technical Specifications:

Torque values, clearances, fluid capacities, electrical system specifications, performance data.

Technical Depth

Depth:

Comprehensive, covering everything from basic rider maintenance to full engine rebuilds and advanced electrical diagnostics.

⚙️ Engine Specifications

Primary Engine

Engine Type:

4-stroke, DOHC, 4-valve, single-cylinder.

Displacement:

449cc (approximately).

Bore X Stroke:

Specifics typically found in the manual, e.g., 95.0 mm x 63.1 mm.

Compression Ratio:

Typically around 11.2:1 to 12.0:1, specific to model variant.

Cooling System:

Liquid-cooled.

Performance

Horsepower Peak:

Not explicitly stated in product info, but typically in the range of 40-50 HP for this class.

Torque Peak:

Not explicitly stated in product info, but typically in the range of 30-35 lb-ft.

Fuel System

Fuel Delivery:

Fuel Injection (EFI) with dual injectors (main and sub) in later models.

Throttle Body Size:

Typically 42mm or 44mm.

Recommended Fuel:

Unleaded gasoline, minimum octane rating (e.g., 87 AKI/91 RON) will be specified.

🔧 Transmission

Standard

Type:

5-speed manual transmission with reverse.

Features

Clutch Type:

Wet, multi-plate clutch.

Gear Ratios:

Specific ratios will be detailed in the manual for each gear.

Final Drive:

O-ring sealed chain.

Fluid Specifications

Transmission Oil Type:

Yamalube motorcycle gear oil or equivalent SAE 10W-30 or 10W-40 API SG or higher, meeting specific Yamaha standards.

📐 Dimensions

Exterior

Length:

Approx. 1830 mm (72.0 in).

Width:

Approx. 1280 mm (50.4 in).

Height:

Approx. 1025 mm (40.4 in).

Wheelbase:

Approx. 1270 mm (50.0 in).

Ground Clearance:

Approx. 230 mm (9.1 in).

Weights

Dry Weight:

Approx. 179 kg (395 lbs).

Wet Weight:

Not explicitly stated, but includes fluids and typically around 185-190 kg.

Cargo

Storage Compartments:

Typically minimal, perhaps a small tool pouch or fender storage.

🛡️ Safety Features

Ratings

Crash Test Data:

Not applicable for ATVs in the same way as automobiles; focus on chassis integrity and component safety.

Active Features

Braking System:

Dual hydraulic disc front, single hydraulic disc rear for strong stopping power.

Throttle Limiter:

May have adjustable throttle stop for novice riders, though less common on sport models.

Passive Features

Handlebar Design:

Ergonomically designed for control and comfort, often with a crossbar for added strength and grip.

Footpegs:

Wide, aggressive footpegs with heel guards for rider security.

💡 Technology Features

Infotainment

Display Panel:

Multi-function digital display showing speedometer, odometer, trip meter, clock, and warning lights.

Driver Assistance

No electronic driver assistance features typically found on automotive vehicles.

Connectivity

No connectivity features like Bluetooth or Wi-Fi.

🔧 Maintenance

Service Intervals

Engine Oil Change:

Typically every 20-30 operating hours or annually, whichever comes first. Specifics in manual.

Oil Filter Replacement:

Concurrent with engine oil changes.

Spark Plug Inspection:

Every 10-15 operating hours or annually. Replacement as needed based on condition.

Air Filter Cleaning:

Frequent cleaning (every few rides) depending on operating conditions, especially in dusty environments.

Chain Lubrication Adjustment:

Every 5-10 operating hours or after riding in wet conditions. Check for proper slack.

Fluid Specifications

Engine Oil Capacity:

Approximately 1.7 liters (1.8 US qt) with filter change. Exact capacity in manual.

Coolant Type:

Yamalube Coolant (anti-freeze/anti-corrosion) or equivalent ethylene glycol-based coolant with demineralized water (50:50 mix).

Brake Fluid Type:

DOT 4 hydraulic brake fluid.

Known Issues

Common Wear Items:

Clutch plates, wheel bearings, steering stem bearings, suspension bushings, tie rod ends due to high-performance use.

Efi System Considerations:

While generally reliable, proper maintenance of fuel filter and injectors is crucial for optimal performance.

📚 Vehicle History

Brand Heritage

Manufacturer Focus:

Yamaha has a long and successful history in motorsports, particularly with sport ATVs, known for performance and reliability.

Model Evolution

Yfz450 Lineage:

The YFZ450 platform has been a dominant force since its introduction, evolving through carburetor and fuel-injected variants, and chassis updates.

2012-2013 Updates:

These model years represent the refined fuel-injected version, often benefiting from minor tuning adjustments and component upgrades over earlier models.

Production

Manufacturing Origin:

Typically manufactured in Japan or USA, depending on specific components and assembly.

🏆 Awards & Recognition

Recognitions

Motorsport Dominance:

The YFZ450 platform has a long history of success in professional ATV racing across various disciplines.

Ratings

Performance Reviews:

Consistently praised in reviews for its powerful engine, agile handling, and robust suspension.