Purpose:
To empower Yamaha YFZ450 owners to perform their own maintenance and repairs, saving costs and ensuring high-quality work.
Target Audience:
DIY enthusiasts, independent mechanics, and Yamaha YFZ450 owners of model years 2012-2013.
Benefit 1:
Cost savings on repair and maintenance.
Benefit 2:
In-depth understanding of vehicle intricacies for better care and emergency preparedness.
Benefit 3:
Convenient, on-demand access to repair information anytime, anywhere.
Benefit 4:
Eliminates the need to search multiple physical locations for manuals.
Value Proposition:
Offers a cost-effective and efficient solution for accessing complete YFZ450 service information compared to dealership services or generic repair guides.
Applicable Model Years:
2012, 2013
Coverage Areas:
General Maintenance, Troubleshooting, Engine Service/Repair, Transmission Service/Repair, Brake System, Wiring Diagram, Electrical System, Suspension, Periodic Lubrication, Steering, Cooling System, Fuel Injection/Fuel System, Emission System, Engine Control System, Chassis/Body, Restraint System, Axle, and more.
Manual Type:
Comprehensive Service and Repair Manual
Required Software:
Adobe PDF Reader, WinZip
Operating System Compatibility:
All versions of Windows & Mac
Engine:
Detailed service, repair, and overhaul procedures for the YFZ450 engine, including disassembly, assembly, inspection, and specifications.
Transmission:
Comprehensive coverage of the transmission system, including inspection, maintenance, and repair of gears, clutches, and related components.
Brakes:
Detailed instructions for servicing, repairing, and bleeding the hydraulic brake system, including caliper, master cylinder, and fluid specifications.
Electrical System:
Extensive information on the electrical system, including battery, charging system, ignition, lighting, starter motor, and wiring diagrams.
Wiring Diagrams:
Complete and detailed electrical wiring diagrams for all circuits.
Suspension:
Guidance on the maintenance, adjustment, and repair of front and rear suspension components, including shocks, springs, and linkages.
Steering:
Procedures for servicing and repairing the steering system, including tie rods, steering shafts, and related components.
Cooling System:
Information on the cooling system, including radiator, fan, coolant specifications, and maintenance procedures.
Fuel System:
Detailed coverage of the fuel injection system, including injectors, fuel pump, pressure regulator, and troubleshooting.
Emission System:
Information related to the emission control system and its components.
Engine Control System:
Coverage of the ECU (Engine Control Unit), sensors, and actuators related to engine management.
Chassis And Body:
Maintenance and repair information for the chassis, frame, and body panels.
Restraint System:
Information concerning the restraint system, likely referring to seatbelts or other safety harnesses if applicable to ATVs.
Axle:
Service and repair procedures for the front and rear axles and drive components.
Maintenance:
Scheduled maintenance tasks, fluid changes, filter replacements, and general upkeep.
Troubleshooting:
Systematic diagnostic procedures for identifying and resolving common and complex issues.
Repair:
Step-by-step instructions for component repair, replacement, and reassembly.
Disassembly And Reassembly:
Detailed procedures for taking apart and putting back together various vehicle systems and components.
Periodic Lubrication:
Specific lubrication points and recommended lubricant types and intervals.
Depth:
Comprehensive, covering everything from basic user maintenance to complete engine and component overhauls. Suitable for both novice DIY enthusiasts and experienced technicians.
Engine Type:
Liquid-cooled, DOHC, 4-stroke, 5-valve, Single Cylinder (Likely based on common YFZ450 configurations of that era)
Displacement:
449cc (Typical for YFZ450 models of this generation)
Bore X Stroke:
95.0 mm x 63.1 mm (Typical for YFZ450 models)
Compression Ratio:
11.4:1 (Typical for YFZ450 models)
Fuel Delivery:
Fuel Injection
Throttle Body Size:
42mm Mikuni (Typical)
Ignition Type:
TCI (Transistor Controlled Ignition)
Oil Type Recommendation:
Yamalube 4 (or equivalent) SAE 10W-30, SAE 10W-40, or SAE 20W-40 API SG type lubricant (Consult manual for exact specification)
Horsepower:
Estimated 40-45 HP (Varies based on specific tuning and model year, manual will provide exact specs)
Torque:
Estimated 30-35 lb-ft (Varies based on specific tuning and model year, manual will provide exact specs)
Type:
5-speed manual, Constant Mesh
Clutch Type:
Wet, multiple-disc
Gear Ratios:
Specific gear ratios will be detailed in the manual, crucial for performance tuning and diagnostics.
Transmission Oil Capacity:
Approximately 0.75 L (Consult manual for exact specification)
Transmission Oil Type:
Yamalube Gear Oil (or equivalent) SAE 80 API GL-4 (Consult manual for exact specification)
Efi System:
Electronic Fuel Injection (EFI) provides precise fuel delivery for improved performance, throttle response, and fuel efficiency. Manual details sensor inputs and ECU functions.
Frame Construction:
Lightweight and strong frame design contributing to agility and handling. Manual covers frame inspection and repair procedures.
Front Suspension Type:
Independent double-wishbone with adjustable shocks (Specifics like travel and damping will be in manual).
Rear Suspension Type:
Swingarm with adjustable shock (Specifics like travel and damping will be in manual).
Oil Change Interval:
Every 3,000 km or 6 months (whichever comes first), or more frequently under severe use (Consult manual for precise interval).
Air Filter Cleaning:
Every 1,000 km or 6 months (or more frequently in dusty conditions).
Spark Plug Replacement:
Recommended every 20,000 km (Consult manual for specific plug and gap).
Coolant Type:
High-quality engine coolant, 50% mixture with de-ionized water (Consult manual for exact specification and capacity).
Brake Fluid Type:
DOT 4 hydraulic brake fluid (Consult manual for exact specification).
Common Issues Overview:
While generally robust, potential issues can include wear on drivetrain components under heavy use, occasional electrical gremlins, and maintenance needs specific to the fuel injection system. The manual addresses diagnosis and repair for these.
