Segment:
Performance-oriented 50cc sport scooter.
Target Audience:
Young riders, enthusiasts seeking a sporty 50cc scooter.
Competitors:
Yamaha Aerox, Aprilia SR50, Malaguti F12, MBK Nitro.
Vehicle Attributes:
Aggressive styling, sporty handling, strong performance for its class, reliable Italian engineering.
Manual Value Proposition:
Provides comprehensive factory-level diagnostic, repair, and maintenance information crucial for keeping this performance scooter in optimal condition. Crucial for owners and independent workshops.
Main Topics:
Characteristics, Special Tools, Maintenance, Troubleshooting, Electrical System, Engine (from vehicle, general), Power Supply, Suspensions, Chassis, Braking System, Cooling System, Bodywork, Pre-delivery
Manual Sections:
Detailed sections covering engine overhaul, electrical troubleshooting, chassis components, suspension and brake servicing, bodywork repair, and pre-delivery checks.
Manual Type:
Service Repair Workshop Manual
File Format:
PDF Download
Mechanical Systems:
Engine, Transmission (likely CVT for a 50cc scooter), Braking System (front and rear), Suspension (front fork, rear shock absorber), Cooling System (air or liquid cooled, depending on specific model variant), Fuel System (carburetor), Exhaust System
Electrical Systems:
Ignition System, Lighting System (headlights, taillights, indicators), Battery, Charging System (stator, regulator/rectifier), Starter System, Wiring Harness, Control Units (if applicable)
Bodywork Chassis:
Frame, Body Panels, Fairings, Seat, Handlebars, Wheels, Tires
Maintenance Procedures:
Scheduled maintenance, oil changes, filter replacements, spark plug servicing, brake pad replacement, chain/belt adjustments (if applicable), coolant checks/changes
Diagnostic Procedures:
Troubleshooting guides for common issues, electrical system diagnostics, engine performance checks
Repair Procedures:
Engine disassembly and reassembly, component replacement, brake system bleeding, suspension servicing, electrical component repair
Special Procedures:
Use of special tools, pre-delivery inspection and setup
Wiring Diagrams:
Yes, as stated ('Wiring Diagrams' often included in comprehensive service manuals).
Depth Of Information:
Comprehensive, suitable for professional technicians and advanced DIY mechanics. Includes detailed diagrams, specifications, and step-by-step instructions.
Engine Type:
Two-stroke, single-cylinder.
Displacement:
Approximately 49cc.
Cooling System:
Likely liquid-cooled (common for RST models), but air-cooled variants may exist. Manual will specify.
Horsepower:
Typically in the range of 4-6 HP, depending on restrictor removal and specific tuning.
Torque:
Not explicitly stated but expected to be sufficient for brisk acceleration in its class.
Fuel Delivery:
Carburetor (likely Dell'Orto or similar).
Fuel Type:
Unleaded gasoline (RON 95 recommended).
Oil System:
Automatic oil injection system (pre-mix of oil and fuel in the tank).
Ignition Type:
Electronic ignition (CDI).
Cylinder:
Single-cylinder design, likely with a cast-iron liner.
Length:
Approximately 1840 mm (varies slightly by specific variant).
Width:
Approximately 720 mm (at handlebars).
Height:
Approximately 1200 mm (to top of windscreen).
Dry Weight:
Approximately 100-105 kg.
Max Load:
Typically around 150 kg (rider + passenger + luggage).
Wheelbase:
Approximately 1340 mm.
Braking System Front:
Disc brake (likely dual discs for RST), hydraulic actuation.
Braking System Rear:
Disc brake, hydraulic actuation.
Lighting:
Halogen headlights, LED taillight/brake light, turn signals.
Chassis Stability:
Steel frame, robust suspension for stable handling.
Dashboard:
Digital/analog combination dashboard with speedometer, tachometer, fuel gauge, coolant temperature warning light, and indicator lights.
ABS:
ABS was not standard on most 50cc scooters of this era; manual will confirm if any variants offered it.
Connectivity Features:
N/A (typical for this class and era).
Oil Change Engine:
Recommended every 3,000-5,000 km or annually, but specific Gilera recommendations will be in the manual.
Spark Plug Replacement:
Typically every 5,000-10,000 km. Manual will provide specific type and gap.
Air Filter Cleaning Replacement:
Check every 2,000 km, clean or replace as needed. Manual will specify type and procedure.
Engine Oil Type:
Fully synthetic 2-stroke oil (specific API TC, JASO FD or higher classification recommended by Gilera).
Coolant Type:
Ethylene glycol-based antifreeze with corrosion inhibitors. Manual will specify ratio and type (e.g., Motul Motocool Expert, Piaggio coolant).
Brake Fluid Type:
DOT 4 hydraulic brake fluid.
Gear Oil Type:
Likely a specific gear oil for the reduction gear (e.g., SAE 80W/90 API GL-4). Manual will confirm capacity and type.
Common Problems:
Premature wear on reed valves, carburetor jetting issues, electrical connector corrosion (especially in wet climates), variator/belt wear, weak starter motor solenoid.
Preventative Maintenance Tips:
Regular cleaning of the air filter, checking and topping up oil injection, periodic spark plug checks, ensuring cooling system is clean and coolant is fresh.
Air Filter Part Number Example:
Refer to manual for specific Gilera part number; aftermarket equivalents exist (e.g., Malossi, Polini).
Brake Pad Part Number Example:
Refer to manual for specific Gilera part number; common aftermarket suppliers like EBC, Ferodo, or Brembo will have compatible parts.
Manufacturer:
Gilera (Italian brand, part of the Piaggio Group).
Runner Lineage:
The Gilera Runner is a long-standing and popular model known for its sporty design and performance, with various iterations over the years. The RST 50 SP represents a sportier variant of the 50cc model.
Manufacturing Origin:
Italy (typical for Gilera models).
