Market Segment:
        
        
            High-performance 50cc scooter segment, known for sporty handling and styling
        
     
    
    
        
            Competitors:
        
        
            Piaggio Zip SP, Aprilia SR50, Yamaha Aerox, MBK Nitro, Malaguti F12
        
     
    
    
        
            Vehicle Attributes:
        
        
            Sporty design, agile handling, liquid-cooled engine options, excellent braking performance for its class
        
     
    
        
            Manual Value Proposition:
        
        
            Empowers owners to perform all necessary maintenance and repairs, significantly reducing dealership costs and extending vehicle lifespan
        
     
 
    
    
    
        
            Coverage Type:
        
        
            Comprehensive service, repair, maintenance, and rebuilding
        
     
    
    
        
            Estimated Page Count:
        
        
            Est. 300-500+ pages (typical for comprehensive workshop manuals)
        
     
    
    
        
            Manual Type:
        
        
            Workshop Manual / Service Repair Manual
        
     
    
    
    
    
 
    
    
    
        
            Engine:
        
        
            Top-end, bottom-end, lubrication, cooling, fuel delivery, ignition, starting system, exhaust
        
     
    
        
            Transmission:
        
        
            Automatic (CVT) system, clutch, variator, gearbox components
        
     
    
        
            Chassis:
        
        
            Frame, suspension (front forks, rear shock), steering, wheels, tires
        
     
    
        
            Brakes:
        
        
            Front and rear braking systems (hydraulic disc/drum), brake fluid, caliper and master cylinder service
        
     
    
        
            Electrical:
        
        
            Wiring diagrams, lighting system, battery, charging system, starter motor, electronic control unit (ECU) diagnostics (if applicable)
        
     
    
        
            Bodywork:
        
        
            Body panels, fairings, seat, storage, lighting, controls, plastics
        
     
    
    
        
            Maintenance:
        
        
            Routine checks, oil changes, filter replacement, spark plug replacement, brake pad inspection/replacement, chain adjustment (if applicable), coolant checks
        
     
    
        
            Troubleshooting:
        
        
            Step-by-step diagnostic guides for common and uncommon problems, fault code interpretation (if applicable)
        
     
    
        
            Repair:
        
        
            Detailed disassembly and reassembly procedures for all major components, engine rebuild, transmission overhaul, suspension and brake repair
        
     
    
        
            Rebuilding Restoration:
        
        
            Comprehensive instructions for complete engine and component overhauls, suitable for restoration projects
        
     
    
    
        
            Technical Depth:
        
        
            In-depth, professional-level coverage from basic maintenance to complete engine disassembly and rebuilding, including torque specifications and component clearances
        
     
 
    
    
    
        
            File Format:
        
        
            Adobe PDF (searchable and printable)
        
     
    
    
        
            Print Quality:
        
        
            High-resolution, printable diagrams and text for clarity
        
     
    
    
        
            Binding Type:
        
        
            Digital Download (no physical binding)
        
     
    
    
        
            Paper Type:
        
        
            Not Applicable (digital format)
        
     
 
    
    
    
        
            Engine Type:
        
        
            Two-stroke, single-cylinder, liquid-cooled (likely Piaggio Hi-Per 2 engine variant)
        
     
    
        
            Displacement:
        
        
            Approx. 49cc
        
     
    
        
            Bore X Stroke:
        
        
            Typical: 39.3mm x 40.5mm
        
     
    
    
        
            Horsepower Peak:
        
        
            Approx. 5-7 HP (stock, depending on specific variant and tuning)
        
     
    
    
        
            Fuel Delivery:
        
        
            Carburetor (e.g., Dell'Orto PHBN 17.5)
        
     
    
        
            Fuel Type:
        
        
            Unleaded Gasoline (95 RON recommended)
        
     
    
    
        
            Oil System:
        
        
            Automatic oil injection (separate oil reservoir)
        
     
    
    
        
            Cooling System Type:
        
        
            Liquid-cooled
        
     
 
    
    
    
        
            Safety Ratings:
        
        
            Not typically rated by official agencies like NHTSA or Euro NCAP (as a scooter)
        
     
    
    
        
            Braking System:
        
        
            Hydraulic disc brakes (front and rear, often 220mm front, 190mm rear)
        
     
    
        
            Tires:
        
        
            Tubeless tires, typically 120/70-13 front, 130/60-13 rear
        
     
    
    
        
            Lighting:
        
        
            Halogen headlights, LED taillight (depending on specific sub-model)
        
     
 
    
    
    
        
            Infotainment System:
        
        
            Basic analog speedometer, odometer, fuel gauge, indicator lights. No advanced infotainment features.
        
     
    
    
        
            Driver Assistance Features:
        
        
            None (typical for 50cc scooters of this era).
        
     
    
    
        
            Connectivity Options:
        
        
            None.
        
     
 
    
    
    
        
            Engine Oil Change:
        
        
            Every 3000-5000 km or annually, whichever comes first. (Manual will detail specific procedure).
        
     
    
        
            Gearbox Oil Change:
        
        
            Every 6000-8000 km. (Manual will specify grade and capacity).
        
     
    
        
            Air Filter Cleaning Replacement:
        
        
            Every 2000-3000 km. (Manual will specify type and cleaning/replacement procedure).
        
     
    
        
            Spark Plug Replacement:
        
        
            Every 4000-6000 km. (Manual will list compatible spark plugs, e.g., NGK CR8EB or similar).
        
     
    
    
        
            Coolant:
        
        
            Ethylene glycol-based antifreeze mixture (e.g., Piaggio Coolant or equivalent) at 50% concentration. Manual will detail capacity.
        
     
    
        
            Brake Fluid:
        
        
            DOT 4 hydraulic brake fluid. Manual will specify replacement intervals and bleeding procedures.
        
     
    
        
            Gearbox Oil:
        
        
            SAE 80W/90 hypoid gear oil. Manual will detail capacity (approx. 100-150ml).
        
     
    
    
        
            Common Wear Items:
        
        
            Worn CVT belt, worn clutch shoes, weak battery, clogged carburetor jets, aging suspension components, cracked plastics due to UV exposure.
        
     
    
        
            Performance Degradation:
        
        
            Can be caused by carbon buildup in the exhaust and cylinder, worn reed valves, or incorrect carburetor tuning.
        
     
 
    
    
    
        
            Manufacturer Origin:
        
        
            Gilera is an Italian motorcycle manufacturer, now part of the Piaggio Group
        
     
    
    
        
            Runner Series:
        
        
            The Gilera Runner is a long-standing and highly regarded scooter series, known for its performance and sporty chassis dynamics. The 50cc SP model represents the entry-level performance variant.
        
     
    
    
        
            Production Period Covered:
        
        
            1999 to 2004 (as per manual title)