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Yamaha WR400 WR400F 2000-2008 Workshop Repair Service Manual PDF Download

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Basic Information Identification Make: Yamaha Model: WR400F Model Designation: WR400 Years Covered: 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 Codes Engine Code Identifier: Likely a 4SP designation for...
Type: Marine
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Sku: 55166
Yamaha WR400 WR400F 2000-2008 Workshop Repair Service Manual PDF Download
Basic Information
Identification
Make: Yamaha
Model: WR400F
Model Designation: WR400
Years Covered: 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
Codes
Engine Code Identifier: Likely a 4SP designation for 4-stroke, specific engine code not provided but consistent across years for this model line
Chassis Code Identifier: Specific chassis codes vary by year and region but the manual covers the WR400F platform across this range
Introduction
Market Position
Vehicle Type: Competition Motocross/Enduro Motorcycle
Competitive Analysis
Key Competitors Era: KTM EXC, Honda CR, Kawasaki KX, Suzuki RM
Key Features
Manual Value Proposition: Comprehensive, accurate, and detailed technical information for DIY mechanics and professional technicians, enabling cost savings on repairs and maintenance.
Digital Manual Advantage: No risk of damage from oil/dirt, ability to print specific sections, instant access
Manual Completeness Assurance: Guaranteed to be complete and intact, without missing or corrupt parts/pages.
Manual Details
Coverage Areas
Coverage Scope: All Models, All Engines, All Trim Types, All Transmission Types
Page Count
Estimated Page Count: Hundreds of pages (as stated in product description)
Manual Type
Type: Workshop Repair Service Manual
Origin Of Manual: OEM (Original Equipment Manufacturer) equivalent, same manual used in official service/repair shops.
Language
Language: English
Format
Format: PDF Download
Manual Coverage
Systems Covered
Covered Systems: General Information, Fuel System, Cooling System, Engine Top End, Clutch, Engine Lubrication System, Engine Removal/Installation, Crankshaft/Transmission, Wheels/Tires, Final Drive, Brakes, Suspension, Steering, Frame, Electrical System, Appendix
Electrical System Detail: Includes detailed wiring diagrams, troubleshooting for ignition, lighting, and charging systems.
Suspension Details: Covers front forks (likely upside-down telescopic) and rear monoshock suspension, including adjustment and maintenance.
Brake System Details: Detailed information on hydraulic brake system components, including fluid replacement, caliper service, and pad replacement.
Wheel Tire Final Drive Details: Includes information on wheel bearing maintenance, tire pressure, and chain drive adjustment/lubrication.
Procedures Included
Included Procedures: Service, Maintenance, Troubleshooting, Repair, Disassembly, Assembly, Cleaning, Reinstalling Procedures, Diagnostic information, Electrical service procedures, Wiring diagrams
Engine Rebuild Procedures: Complete procedures for engine top-end rebuild, crankshaft and transmission disassembly/assembly.
Troubleshooting Electrical: Specific troubleshooting guides for electrical system faults, often integrated with wiring diagrams.
Technical Depth
Depth Of Information: Professional-level diagnostic, repair, and maintenance information as used by local service/repair shops; detailed substeps, critical specifications, critical information (notes, cautions, warnings)
Diagnostic Capabilities: Comprehensive diagnostics for all major systems, including specific procedures for identifying and resolving faults.
Manual Specifications
File Format
File Format Details: PDF
Searchability: PDF format typically allows for text searching, enhancing usability for finding specific information quickly.
Print Quality
Printability: Full Printable
Zoom Functionality
Zoom Capability: YES
Delivery Method
Delivery: Instant Download
Software Requirements
Requirements: Adobe PDF Reader, WinZip
Compatibility
Operating Systems: All Versions of Windows & Mac
Engine Specifications
Primary Engine
Engine Type: 4-Stroke
Engine Displacement: Approximately 396cc (specific bore/stroke not provided, but characteristic of WR400F)
Engine Bore Stroke Typical: Typical bore around 84mm and stroke around 70mm for this displacement.
Performance
Horsepower Estimated: Likely in the 40-45 HP range (typical for this class and era)
Torque Estimated: Not specified, but optimized for off-road usability
Fuel System
Fuel Delivery: Carbureted (likely Mikuni VM series, specific model not provided)
Carburetor Considerations: Manual likely details specific carburetor tuning, jetting, and cleaning procedures.
Cooling System
Cooling Method: Liquid-Cooled
Transmission
Standard
Transmission Type: 5-speed constant mesh
Optional
Optional Transmissions: N/A (standard for this model)
Features
Clutch Type: Wet, multi-plate
Dimensions
Exterior
Wheelbase: Varies slightly by year, typically around 1475-1485 mm (58.1-58.5 inches)
Ground Clearance: Typically around 330-345 mm (13-13.6 inches)
Seat Height: Approximately 960-970 mm (37.8-38.2 inches)
Weights
Dry Weight: Approximately 115-117 kg (253-258 lbs)
Wet Weight: Not specified, but includes fluids
Safety Features
Ratings
Safety Ratings: N/A (Motorcycles typically do not have NHTSA/Euro NCAP ratings)
Active Features
Braking System: Hydraulic disc brakes front and rear
Passive Features
Frame Construction: Steel semi-double cradle frame
Technology Features
Infotainment
Infotainment Features: N/A (Competition off-road motorcycle, no infotainment systems)
Driver Assistance
Rider Assistance: Focus on mechanical systems for performance and reliability. No electronic rider aids beyond basic ignition and lighting.
Connectivity
Connectivity Features: N/A
Maintenance
Service Intervals
Oil Change Interval: Refer to manual for specific mileage/hour recommendations (typically every 10-20 hours of use or 1000-2000 miles for severe off-road use)
Air Filter Cleaning: Frequent cleaning/replacement recommended, especially in dusty conditions (refer to manual)
Fluid Specifications
Engine Oil Type: Yamalube (or equivalent SAE 10W-40 API SG or higher, JASO MA rated motorcycle oil)
Coolant Type: Permanent type antifreeze (ethylene glycol base) with distilled water (50/50 mix)
Transmission Oil Type: Yamalube (or equivalent SAE 75W API GL-4 or GL-5 gear oil, depending on specific gearbox design)
Known Issues
Common Wear Items: Clutch wear, spark plug fouling, air filter degradation, potential carburetor jetting issues, valve clearance adjustments
Troubleshooting Focus: The manual's troubleshooting section is crucial for addressing performance issues, starting problems, and electrical gremlins.
Carburetor Maintenance Focus: The manual's detail on the fuel system is critical for addressing performance tuning and maintenance of the carburetor.
Vehicle History
Brand Heritage
Yamaha Offroad Legacy: Yamaha has a long and successful history in off-road racing and motocross, dating back to the YZ series. The WR line continues this heritage with features optimized for enduro riding.
Model Evolution
Wr400F Development: The WR400F was introduced as a competition enduro model, evolving from Yamaha's motocross technology. It featured a potent four-stroke engine designed for broad power delivery suitable for various off-road conditions.
Wr400F Market Segment: Positioned as a competitive off-road machine, bridging the gap between motocross-specific models and street-legal dual-sports.
Production
Production Period: The WR400F was produced for a significant period, with this manual covering a substantial generational update from 2000 to 2008.
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