Segment:
Performance Scooter
Target User:
Commuters and Enthusiasts seeking sporty performance
Competitors:
Aprilia SR Max, Yamaha XMAX, Honda Forza
Design:
Sporty, aggressive styling reminiscent of motorcycles
Performance:
Strong acceleration and top speed for its class
Utility:
Enables DIY maintenance, cost savings, and deeper understanding of the vehicle
Diagnostic Aid:
Provides technical specifications and procedures to aid in fault diagnosis
Technical Coverage:
Mechanical Systems, Routine Maintenance, Repair Procedures
Excluded Coverage:
Electrical Diagrams
Estimated Pages:
Comprehensive (specific count not provided, typical for a full service manual)
Type:
Service Manual / Workshop Manual
Engine:
Yes (Internal components, lubrication, cooling, starting, ignition - except electrical diagrams)
Transmission:
Yes (Automatic transmission, clutch, variator)
Brakes:
Yes (Hydraulic systems, pad replacement, fluid changes)
Suspension:
Yes (Front fork, rear shock absorber)
Fuel System:
Yes (Carburetor/Fuel Injection system - mechanical aspects, filter)
Exhaust System:
Yes (Removal, installation, maintenance)
Chassis:
Yes (Frame, bodywork disassembly/assembly)
Wheels And Tires:
Yes (Removal, installation, balancing)
Maintenance:
Yes (Oil change, filter replacement, brake pad replacement, air filter cleaning/replacement, coolant checks)
Troubleshooting:
Yes (Diagnosis of common mechanical issues)
Repair:
Yes (Component disassembly, reassembly, and repair)
Torque Specifications:
Yes (Crucial bolt and fastener torques)
Special Tools:
Yes (Identification of necessary specialized tools for specific tasks)
Depth:
Comprehensive for Mechanical Repairs and Routine Maintenance
Audience:
Professional Mechanics and DIY Owners
Engine Type:
4-stroke, 4-valve, Liquid-cooled, SOHC
Bore X Stroke Mm:
52 x 58.6
Compression Ratio:
12.5:1 (Approximate)
Power Kw:
11.0 kW @ 9,250 rpm (Approximate for ST125)
Torque Nm:
11.7 Nm @ 7,250 rpm (Approximate for ST125)
Engine Type:
4-stroke, 4-valve, Liquid-cooled, SOHC
Bore X Stroke Mm:
72 x 49.5
Compression Ratio:
12.5:1 (Approximate)
Power Kw:
15.0 kW @ 8,000 rpm (Approximate for ST200)
Torque Nm:
18.5 Nm @ 6,500 rpm (Approximate for ST200)
Fuel Delivery:
Electronic Fuel Injection (EFI) or Carburetor (depending on specific market/year, manual should cover both)
Oil Type:
Refer to Manual for Specific API/JASO Standard and Viscosity Grade (e.g., SAE 5W-40, JASO MA2)
Coolant Type:
Ethylene Glycol based coolant with corrosion inhibitors (refer to manual for specific mixture ratio and type)
Safety Compliance:
Meets relevant European safety standards (e.g., Euro 4/5)
Brakes Front:
Disc Brake (likely dual piston caliper, potentially with ABS as optional)
Brakes Rear:
Disc Brake (likely single piston caliper)
Lighting:
Halogen or LED Headlight, Tail Light, Indicators
Frame Construction:
High-tensile steel frame for rigidity
Dashboard:
Digital/Analog combination instrument cluster displaying speed, RPM, fuel level, etc.
ABS:
Optional Anti-lock Braking System (ABS) may be available on certain versions.
Charging Port:
12V accessory socket for charging devices may be present.
Engine Oil Change:
Every 5,000-10,000 km or Annually (Refer to Manual for precise interval)
Oil Filter Replacement:
With every oil change
Air Filter Cleaning Replacement:
Every 5,000-10,000 km or as needed based on operating conditions
Spark Plug Replacement:
Every 10,000-20,000 km (Refer to Manual for specific type and gap)
Brake Fluid Flush:
Every 2 years (DOT 4 recommended)
Coolant Change:
Every 2-4 years or 20,000-40,000 km
Engine Oil Capacity L:
Approx. 1.0 - 1.2 L (Refer to Manual for exact capacity and fill level)
Transmission Oil:
Not applicable for CVT transmission; final drive oil (if applicable) will have specific requirements.
Variator Wear:
Common for high-mileage scooters, leading to loss of acceleration and power.
Coolant Leaks:
Can occur from hoses or seals, requiring regular inspection.
Fuel Injector Clogging:
More prevalent in older models or with poor fuel quality, affecting engine performance.
Suspension Wear:
Front fork seals and rear shock absorber can wear over time, impacting ride quality.
Manufacturer:
Piaggio Group (Italian manufacturer of scooters and motorcycles)
Gilera Runner Legacy:
The Gilera Runner platform is known for its sporty design and capable performance, often bridging the gap between scooters and motorcycles.
St Series Introduction:
The 'ST' designation typically indicates a more modern, refined, and often more powerful iteration of the original Runner model.
Production Period:
The ST models were prominent in the late 2000s and 2010s.
