Target Audience:
Yamaha YBR125/YBR125ED owners and independent repair shops seeking detailed technical information for maintenance and repair.
Value Proposition:
Provides professional-level repair information, equivalent to official Yamaha service manuals, at a fraction of the cost and with instant availability.
Manual Advantages:
Detailed step-by-step instructions, clear illustrations, troubleshooting guides, wiring diagrams, instant download.
Manual Scope:
Full service, repair, maintenance, diagnostics, restoration
Estimated Page Count:
Highly comprehensive (specific count not provided, typical for full service manuals is 300-600+ pages)
Manual Classification:
Full Service Repair Manual
File Format:
PDF Download
Engine Systems:
Engine disassembly/assembly, lubrication, cooling, fuel injection/carburetion, ignition, emissions control, starting, charging
Transmission Drivetrain:
Clutch, gearbox, final drive (chain/sprockets), operation and maintenance
Chassis Suspension:
Frame, front fork, rear shock absorber, swingarm, wheel bearings, steering system
Braking System:
Front and rear brake systems (disc/drum based on variant), hydraulic lines, master cylinders, calipers, levers
Electrical System:
Battery, charging system (alternator/stator), ignition system, lighting (headlight, taillight, indicators), instrumentation, starter motor, wiring diagrams, troubleshooting
Fuel System:
Fuel tank, fuel pump (if applicable), fuel lines, injectors/carburetor, fuel filter
Exhaust System:
Exhaust pipes, muffler, catalytic converter (if applicable)
Bodywork Fittings:
Fairings, seat, fenders, handlebars, controls, mirrors, luggage rack (if applicable)
Maintenance Procedures:
Scheduled maintenance, oil changes, filter replacements, chain adjustment, tire pressure, brake pad inspection/replacement, spark plug service, valve clearance adjustment
Diagnostic Procedures:
Troubleshooting common problems, engine performance issues, electrical faults, starting/charging problems
Repair Procedures:
Engine rebuild, transmission repair, suspension overhaul, brake system repair, electrical component replacement, bodywork repair
Rebuild Refurbish:
Detailed instructions for comprehensive restoration and component rebuilding
Depth Of Coverage:
Comprehensive, from basic maintenance to advanced engine and electrical diagnostics and repair. Suitable for professional technicians and experienced DIY mechanics.
PDF Quality:
High resolution, suitable for printing and digital viewing
Printable:
Yes, all pages are printable
Binding Method:
Digital Download (PDF) - no physical binding
Digital Format:
PDF (requires Adobe Reader)
Operating Systems:
Compatible with all versions of Windows and Mac OS
Software Requirements:
Adobe PDF Reader, WinRAR (for extraction if zipped)
Engine Type:
4-stroke, SOHC, 2-valve, air-cooled single cylinder
Displacement:
124cc (approximate, based on common YBR125 specifications)
Bore X Stroke:
Typically 54.0 mm x 54.5 mm (verify specific model details within manual)
Compression Ratio:
Typically 10.0:1 (verify specific model details within manual)
Horsepower:
Approximately 10-12 HP at 7500-8000 RPM (varies slightly by region and year, refer to manual for precise figures)
Torque:
Approximately 9-10 Nm at 6000-6500 RPM (varies slightly by region and year, refer to manual for precise figures)
Fuel Delivery:
Fuel Injection (FI) or Carburetor depending on model variant (YBR125ED typically FI, base YBR125 may be carb).
Fuel Type:
Unleaded Gasoline (RON 91 or higher)
Oil Type Recommendation:
Yamalube 4G SAE 10W-40 or equivalent API SE, SF, SG, SH, SJ, SL, SM or higher (refer to manual for exact specifications and capacities).
Length:
Approx. 1980 mm (verify specific model details within manual)
Width:
Approx. 745 mm (verify specific model details within manual)
Height:
Approx. 1095 mm (verify specific model details within manual)
Dry Weight:
Approx. 120-125 kg (verify specific model details within manual)
Wet Weight:
Approx. 128-133 kg (verify specific model details within manual)
Fuel Tank Capacity:
Approx. 13 liters (verify specific model details within manual)
Instrument Cluster:
Analog speedometer, odometer, fuel gauge (on some models), indicator lights. (Specific features may vary by market and trim).
ABS Availability:
Anti-lock Braking System (ABS) is typically not a standard feature on this model. (Manual will detail if any variant offers it).
Connection Features:
No modern connectivity features like Bluetooth or USB charging as standard on this model generation.
Oil Change Interval:
Typically every 3,000-4,000 km or 6 months, whichever comes first. (Refer to manual for precise recommendations).
Spark Plug Service Interval:
Typically every 6,000-8,000 km. (Refer to manual for specific plug type and gap).
Valve Clearance Check Interval:
Typically every 10,000-12,000 km. (Crucial for maintaining performance and engine health).
Engine Oil Capacity:
Approx. 0.9 - 1.1 liters with oil filter change (verify exact capacity in manual).
Brake Fluid Type:
DOT 3 or DOT 4 (refer to manual for exact specification and replacement interval).
Common Wear Items:
Chain and sprockets, brake pads, tires, clutch plates due to commuter usage. Electrical connections can sometimes corrode in humid climates.
Typical Troubleshooting:
Starting issues can be related to battery, starter solenoid, or ignition coil. Fuel system (carburetor or injector) can get gummed up with infrequent use or poor fuel quality.
Yamaha Legacy:
Yamaha Motor Company is renowned for its quality, reliability, and performance across a wide range of motorcycles, from entry-level commuters to high-performance sportbikes and off-road machines.
Ybr125 Lineage:
The YBR125 has been a popular global model, appreciated for its fuel efficiency, low running costs, and user-friendly nature. It's designed as a dependable commuter motorcycle.
Production Period:
The YBR125 series has been in production for many years, with this manual specifically covering the 2005-2010 generation.
