Target Segment:
Entry-level sportbike, popular for new riders and city commuting.
Key Competitors:
Honda CBR125R, KTM RC 125, Kawasaki Ninja 125 (depending on market).
Design Philosophy:
Sporty aesthetics, inspired by larger R-series motorcycles.
Manual Value Proposition:
Empowers owners and technicians with comprehensive, accurate repair information for cost-effective maintenance and repairs.
Engine Mechanical:
Complete disassembly, inspection, and assembly of engine components.
Fuel System:
Fuel injection system (FI), throttle body, injectors, fuel pump, fuel tank maintenance.
Ignition System:
Ignition coil, spark plug, ECU control.
Cooling System:
Radiator, fan, coolant flow, thermostat, water pump.
Exhaust System:
Exhaust manifold, catalytic converter, muffler.
Transmission Clutch:
Clutch operation, clutch disc replacement, gear shift mechanism.
Chassis Frame:
Frame inspection, component mounting.
Suspension Front:
Front fork service, oil replacement, seal replacement, fork spring.
Suspension Rear:
Rear shock absorber service, linkage, swingarm maintenance.
Brakes Front:
Brake caliper service, disc replacement, brake pad replacement, master cylinder.
Brakes Rear:
Rear brake caliper service, disc replacement, brake pad replacement, master cylinder.
Wheels Tires:
Wheel bearing inspection, tire replacement, wheel balancing.
Electrical System:
Battery, starter motor, alternator, lighting, wiring diagrams, fuses.
Instrumentation Controls:
Dashboard, controls, switches, throttle grip.
Bodywork Fairings:
Fairing removal and installation, body panel service.
Troubleshooting:
Diagnostic procedures, common fault identification, solutions.
Maintenance:
Regular servicing, fluid changes, filter replacements, adjustments.
Removal Installation:
Step-by-step guides for removing and installing all major components.
Disassembly Assembly:
Detailed procedures for breaking down and reassembling assemblies.
Adjustments:
Cable adjustments, valve clearance adjustments, suspension settings.
Inspections:
Visual checks, wear limit checks, operational checks.
Specifications Data:
Torque values, fluid capacities, wear limits, diagnostic parameters.
Pictorial Diagrams:
Detailed illustrations, exploded diagrams, and photos for clarity.
Depth:
Comprehensive (Bumper-to-bumper coverage).
Target Audience:
Mechanics and DIY enthusiasts.
Detail Level:
Step-by-step procedures, special notes, important points, precautions.
Engine Type:
Liquid-cooled, 4-stroke, SOHC, 4-valve
Bore X Stroke:
52.0 mm x 58.6 mm (Typical for this generation)
Compression Ratio:
11.2:1 (Typical for this generation)
Horsepower:
Approx. 15 HP (as per European A1 license regulations)
Torque:
Approx. 12 Nm (as per European A1 license regulations)
Fuel Delivery:
Electronic Fuel Injection (FI)
Fuel Type:
Unleaded Gasoline
Oil Type:
Yamalube 4-stroke motorcycle oil (API SG, SJ, SL or higher, JASO MA)
Oil Capacity:
Approx. 1.0 L (without filter change), 1.1 L (with filter change)
Oil Change Interval:
Every 6,000 km or 6 months, whichever comes first (refer to manual for exact details).
Air Filter Inspection:
Every 6,000 km or 6 months.
Spark Plug Replacement:
Every 12,000 km or 12 months.
Valve Clearance Check:
Every 12,000 km or 12 months.
Coolant Type:
High-quality, ethylene glycol-based coolant with distilled water (50:50 mixture).
Common Wear Items:
Clutch plates, brake pads, chain and sprockets, tires, fork seals.
Maintenance Recommendations
Preventative Maintenance:
Strict adherence to periodic maintenance chart, prompt addressing of unusual noises or performance changes, use of genuine Yamaha parts.
Yamaha Motorsport Legacy:
Yamaha has a long and successful history in motorsport, particularly in MotoGP and World Superbike championships, influencing the design of sportbikes like the YZF-R series.
Yzf R Series Introduction:
The YZF-R125 was introduced to cater to the growing demand for smaller displacement sportbikes in the European market, offering a premium option with R-series styling.
Manufacturing Location:
Primarily manufactured in Indonesia.
