Motorcycle Segment:
Off-road, Enduro/Cross-Country Competition
Key Competitors:
KTM 250 EXC, Honda CRF250X, Kawasaki KLX250S, Suzuki RMX250 (depending on specific market and year).
Vehicle Highlights:
Lightweight, potent liquid-cooled engine, advanced suspension (KYB SSS forks), strong off-road performance, often features dual-sport conversion potential depending on regional homologation.
Manual Value Proposition:
Empowers owners and technicians with factory-level knowledge for efficient and accurate maintenance and repair, reducing reliance on dealerships and ensuring optimal performance.
Primary Focus:
Repair and maintenance of the Yamaha WR250FR motorcycle.
Target Audience:
Professional technicians and experienced DIY mechanics.
Estimated Page Count:
Varies by specific factory manual version, but comprehensive manuals typically exceed 300 pages.
Manual Classification:
Service Repair Manual / Workshop Manual
Delivery Method:
Instant Download PDF
Engine Systems:
Engine disassembly, assembly, internal component inspection, valve clearance adjustment, timing chain adjustment, cooling system.
Fuel System:
Fuel injection system (EFI) diagnostics, fuel pump, injectors, throttle body service, fuel pressure testing.
Drivetrain:
Clutch operation and service, transmission disassembly and inspection, gear shift mechanism.
Suspension:
Front fork (KYB SSS - Speed Sensitive System) disassembly, service, oil changes, and adjustments. Rear shock absorber service and linkage maintenance.
Brakes:
Front and rear brake caliper service, master cylinder overhaul, brake fluid bleeding, pad replacement, rotor inspection.
Electrical System:
Ignition system, lighting circuits, battery maintenance, charging system, starter motor, wiring diagrams, troubleshooting electrical faults.
Chassis And Bodywork:
Frame inspection, body panel removal and installation, seat, fuel tank, handlebars, footpegs.
Routine Maintenance:
Oil and filter change intervals, air filter cleaning, chain lubrication and adjustment, spark plug replacement, coolant checks.
Troubleshooting:
Diagnostic procedures for common starting issues, performance problems, electrical faults, and mechanical noises.
Disassembly Assembly:
Detailed step-by-step instructions for component removal, overhaul, and reassembly.
Rebuilds:
Comprehensive procedures for engine rebuilds, including piston, ring, and cylinder head service.
Diagnostic Capabilities:
Advanced diagnostics, including sensor testing, actuator testing, and EFI system analysis.
Repair Scope:
Complete repair and overhaul of all major motorcycle systems.
Printability:
Full Printable - High-resolution images and text for clear printing.
Zoom Functionality:
YES - Allows for detailed examination of diagrams and text.
Digital Binding:
N/A (Digital Download)
Digital Paper Type:
N/A (Digital Download)
Software Requirements:
Adobe PDF Reader, WinZip (for unzipping if compressed).
Compatibility:
All Versions of Windows & Mac
Engine Type:
Liquid-cooled, four-stroke, DOHC, four-valve, single-cylinder
Bore X Stroke:
77.0 mm x 53.6 mm
Compression Ratio:
12.5:1 (typical for this generation WR250)
Horsepower Estimate:
Approximately 30-35 HP (peak, at the crankshaft), dependent on exhaust and tuning.
Torque Estimate:
Approximately 24-26 Nm (peak, at the crankshaft).
Fuel Delivery:
Electronic Fuel Injection (EFI) with throttle position sensor (TPS).
Fuel Type:
Unleaded gasoline, minimum 91 octane (RON+MON)/2).
Engine Oil Type:
Yamalube 4 (or equivalent API SG, JASO MA, SAE 10W-40 or 20W-40)
Oil Capacity:
Approximately 1.30 L (with oil filter change).
Ignition System:
TCI (Transistor Controlled Ignition)
Cooling Method:
Liquid Cooled
Coolant Type:
Ethylene glycol-based coolant, 50% mixture with distilled water.
Transmission Type:
Constant mesh, 6-speed
Optional Gear Ratios:
N/A (Fixed gear ratios for the model)
Clutch Type:
Wet, multi-disc
Transmission Oil Type:
Yamalube 4 (or equivalent API SG, JASO MA, SAE 10W-40 or 20W-40)
Transmission Oil Capacity:
Approximately 0.95 L (separate from engine oil).
Overall Length:
Approximately 2175 mm (85.6 in)
Overall Width:
Approximately 825 mm (32.5 in)
Overall Height:
Approximately 1280 mm (50.4 in)
Seat Height:
Approximately 975 mm (38.4 in)
Wheelbase:
Approximately 1475 mm (58.1 in)
Ground Clearance:
Approximately 330 mm (13.0 in)
Wet Weight:
Approximately 121 kg (267 lbs) (with all necessary operating fluids and a full fuel tank, but not necessarily full cargo).
Fuel Tank Capacity:
Approximately 8.0 Liters (2.1 US gal)
Safety Ratings:
N/A (Motorcycle safety is primarily based on rider skill and adherence to regulations; no formal crash test ratings like cars).
Braking System:
Hydraulic disc brakes, front and rear.
Tires:
Off-road biased tires, typically tubed type for durability. Front: 80/100-21, Rear: 110/100-18 (common sizes).
Lighting:
Headlight, taillight/brake light, turn signals (depending on homologation for street legality).
Handguards:
Often fitted as standard or common accessory for lever protection and debris deflection.
Infotainment Features:
N/A (This is a dedicated off-road motorcycle; no infotainment system is present).
Rider Aids:
N/A (No electronic rider aids like traction control or ABS are typically equipped on this model).
Connectivity Features:
N/A (No Bluetooth or smartphone connectivity).
Fuel Injection Benefits:
Precise fuel metering leads to improved throttle response, fuel efficiency, and consistent performance across varying altitudes and temperatures compared to carburetors.
Kyb Sss Forks:
KYB 'Speed Sensitive System' (SSS) forks, renowned for their advanced damping technology providing excellent control and adjustability for varied terrain.
Engine Oil Change:
Every 50-100 hours of off-road use, or approximately every 1,000-2,000 miles (dependent on operating conditions).
Air Filter Cleaning:
Every 10-20 hours of use, or more frequently in dusty conditions.
Spark Plug Replacement:
Every 100-150 hours of use (NGK CR9E or equivalent).
Valve Clearance Check:
Every 100-150 hours of use.
Fork Oil Type And Level:
KYB 01 or SAE 0W-20 suspension fluid. Level: 100mm from the top of the inner tube with spring compressed (check manual for exact value).
Common Wear Items:
Clutch plates, brake pads, chain and sprockets, wheel bearings, steering head bearings, piston rings.
Efi System Considerations:
Periodic cleaning of the throttle body and injector may be beneficial. Ensuring proper battery voltage is crucial for EFI system stability.
Oil Filter Part Number:
Yamaha OEM: 5TA-13440-00-00 (or compatible aftermarket equivalent like HiFlofiltro HF145).
Yamaha Legacy:
Yamaha Motor Company, established in 1955, has a rich history in motorcycle racing and performance-oriented off-road vehicles.
Wr Series Evolution:
The WR250F line has evolved from its roots, incorporating technological advancements like fuel injection and sophisticated suspension systems to maintain its competitive edge in the enduro market.
Manufacturing Origin:
Primarily manufactured in Japan.
