Market Position:
The Gilera Runner FX125 was a popular performance-oriented scooter in the 125cc class, known for its sporty handling and distinctive design. This manual targets owners and technicians seeking in-depth knowledge for maintenance and repair of this specific model.
Competitive Analysis:
Competed with other 125cc performance scooters of its era from brands like Aprilia (SR 125/150), Yamaha (Aerox 100, Jog RR), and Honda (Dio, NSR 125 variants). Its aggressive styling and sporty chassis set it apart.
Key Features:
Comprehensive factory-level repair information, detailed diagrams and photos, step-by-step instructions, permanent access without expiry, multi-device compatibility.
Coverage Areas:
All repairs, servicing, troubleshooting, diagnostics, electrical systems, engine, transmission, chassis, bodywork, suspension, brakes, fuel system, cooling system, lubrication system, emission control systems, torque specifications, wiring diagrams, exploded views, component identification.
Page Count:
Hundreds of pages (exact count not specified, but described as extensive)
Manual Type:
Factory Service Repair Workshop Manual
Format:
Digital Download (PDF)
Multi Device Usage:
Yes, usable on as many computers as required.
Licensing Terms:
Full manual, no trial, no expiry, lifetime usage.
Operating Systems:
Fully compatible with all Windows and MAC computers.
Systems Covered:
Engine (internal components, timing, sealing), Fuel System (carburetor, fuel lines, pump), Ignition System, Exhaust System, Cooling System, Lubrication System, Transmission (variator, clutch, gearbox), Electrical System (wiring diagrams, starter, lighting, charging), Brakes (hydraulic system, pads, discs), Suspension (forks, shock absorber), Steering, Chassis, Body Panels, Wheels, Tires.
Procedures Included:
Routine maintenance, scheduled servicing, major repairs, minor repairs, component removal and installation, troubleshooting guides, diagnostic procedures, electrical diagnostics, carburetor adjustment, engine tuning, brake bleeding, suspension adjustments, oil changes, filter replacement, spark plug replacement, clutch adjustment, variator service, overhaul procedures, torque value specifications, exploded diagrams for assembly/disassembly.
Technical Depth:
Comprehensive and detailed, suitable for professional mechanics and experienced DIY technicians. Covers everything from basic fluid checks to complete engine rebuilds and complex electrical troubleshooting.
Troubleshooting Coverage:
Extensive troubleshooting guides for common and complex issues related to engine performance, starting problems, electrical faults, braking issues, and handling anomalies.
Wiring Diagrams Coverage:
Detailed electrical system wiring diagrams for all circuits, including lighting, ignition, starter, charging, and instrumentation.
Exploded Diagrams Coverage:
Hundreds of highly detailed exploded diagrams showing component relationships and order of assembly/disassembly for all major systems.
Engine Type:
2-stroke, single-cylinder, liquid-cooled
Displacement:
124 cc (Exact displacement may vary slightly based on internal Gilera specifications, but 125cc is the common designation)
Bore X Stroke:
Refer to manual for exact specifications (typically around 52-54mm bore, 58-60mm stroke for this class)
Cooling System:
Liquid-cooled
Horsepower:
Refer to manual for specific output; typically in the range of 10-15 HP for this era and class.
Torque:
Refer to manual for specific output.
Fuel System:
Carburetor (Specific model and size to be detailed in manual, e.g., Dell'Orto PHBG 19/21mm)
Fuel Type:
Unleaded gasoline
Fuel Tank Capacity:
Refer to manual for exact capacity (typically 7-9 liters)
Lubrication Type:
Premix or Oil Injection (Specific system to be detailed in manual)
Overall Length:
Refer to manual for exact dimensions. Typically around 1800-1900 mm.
Overall Width:
Refer to manual for exact dimensions. Typically around 700-750 mm.
Seat Height:
Refer to manual for exact height. Typically around 780-800 mm.
Dry Weight:
Refer to manual for exact weight. Typically around 110-120 kg.
Gross Vehicle Weight Rating:
Refer to manual for GVWR.
Wheelbase:
Refer to manual for exact wheelbase. Typically around 1300-1350 mm.
Safety Ratings:
Not applicable for motorcycle/scooter safety ratings in the same way as cars. Manual covers safe operation and maintenance of safety-critical systems.
Active Safety Features:
Disc brakes front and rear for effective stopping power, responsive handling, stable chassis.
Passive Safety Features:
Reinforced frame, durable bodywork providing some rider protection.
Service Intervals:
Refer to manual for detailed schedule, typically includes: 1000km (oil change, check drive belt, brake pads), 5000km (air filter, spark plug, gearbox oil), 10000km (variator rollers, clutch, carburetor cleaning, coolant check).
Engine Oil Type:
Refer to manual. Typically a high-quality 2-stroke engine oil meeting API TC or JASO FD/FC standards, or a specific Gilera recommendation.
Coolant Type:
Refer to manual. Typically a permanent type antifreeze/coolant mixture suitable for aluminum engines.
Gearbox Oil:
Refer to manual for type and viscosity (e.g., SAE 80W/90 GL-3 or GL-4).
Brake Fluid Type:
Refer to manual. Typically DOT 4.
Known Issues:
Potential wear on variator rollers, clutch wear, carburetor jetting sensitivity to fuel quality or altitude, aging electrical connectors, exhaust pipe carbon buildup. Manual addresses these through maintenance and troubleshooting.
Filter Part Numbers:
Refer to manual for specific Gilera part numbers for air filter, oil filter (if applicable to 2-stroke variant), and gearbox oil filter.
Spark Plug Type:
Refer to manual for recommended spark plug type and gap (e.g., NGK BR9ES).
Brand Heritage:
Gilera is an Italian manufacturer with a long history in motorcycling, established in 1909. Known for sporty and performance-oriented models, including scooters and racing motorcycles.
Model Evolution:
The Gilera Runner series, introduced in the mid-1990s, became iconic for its sporty design and handling. The FX125 was a key model within this line, offering a step up in performance from smaller displacement scooters while retaining a compact and agile package. It underwent minor updates and variations throughout its production run.
Production Period:
1998-2001 (as covered by this manual)
Manufacturing Location:
Italy (Typical for Gilera)