Positioning:
The Gilera Nexus 300 ie positioned as a premium, sporty maxi-scooter offering a blend of performance, comfort, and practicality for urban commuting and longer journeys.
Competitors:
Competes with other 300cc class maxi-scooters from manufacturers like Yamaha (XMAX 300), Honda (SH300i), Kymco, and Aprilia.
Sporty Handling:
Known for its motorcycle-like handling and stability, especially at higher speeds.
Performance:
Adequate power from the 300cc engine for acceleration and cruising.
Comfort And Ergonomics:
Designed for rider comfort with a plush seat and protective fairings.
Value:
Essential for owners seeking to perform DIY maintenance, repairs, and diagnostics, saving on dealership service costs and understanding their vehicle intimately.
Engine Mechanics:
Detailed disassembly, inspection, and reassembly of engine components (cylinder, piston, crankshaft, valves, etc.)
Fuel System:
Fuel injection system (throttle body, injectors, fuel pump, pressure regulator), emissions control
Ignition System:
Spark plug, ignition coil, CDI unit, timing
Cooling System:
Radiator, water pump, thermostat, coolant flow, hoses
Transmission And Drivetrain:
CVT system (variator, clutch, belt), final drive, gearbox (if applicable)
Brakes:
Front and rear brake systems (hydraulic calipers, discs, master cylinders, brake lines, fluid service), ABS (if equipped)
Suspension:
Front telescopic fork, rear monoshock absorber, linkage (if applicable), adjustments
Steering:
Handlebar assembly, steering column, bearings
Electrical System:
Battery, charging system (stator, regulator/rectifier), lighting, starter motor, fuses, wiring diagrams
Bodywork And Chassis:
Frame, fairings, seating, storage, fasteners, trim
Diagnostics And Troubleshooting:
Fault codes, symptom-based diagnostics, common problem identification
Scheduled Maintenance:
Oil changes, filter replacements, spark plug service, belt inspection/replacement, coolant checks
Component Overhaul:
Complete engine rebuild, gearbox disassembly, brake system overhaul
Adjustments:
Valve clearance, throttle cable, brake levers
Electrical Diagnostics:
Testing circuits, components, and sensors; interpreting wiring diagrams
Troubleshooting Guides:
Systematic approaches to diagnosing and resolving performance issues or failures
Depth:
Comprehensive, from basic user maintenance to in-depth mechanical repairs and diagnostics.
Diagnostic Level:
Advanced diagnostic procedures, including electrical system testing and fault code interpretation.
Rebuild Scope:
Full component rebuilds, including engine, transmission, and suspension.
Engine Type:
Four-stroke, single-cylinder, 4-valve, SOHC (Piaggio LEADER engine family)
Bore X Stroke:
75 mm x 63 mm (typical for 300cc LEADER)
Compression Ratio:
10.5:1 (typical)
Horsepower:
Approximately 22-24 HP (at 7500-8000 rpm, depending on specific tuning)
Torque:
Approximately 23-25 Nm (at 6000-6500 rpm, depending on specific tuning)
Induction:
Electronic Fuel Injection (IE - Iniezione Elettronica)
Fuel Type:
Unleaded gasoline (RON 95 or higher recommended)
Oil Type:
Semi-synthetic or Synthetic 4-stroke motorcycle oil (e.g., SAE 5W-40, API SG/SH/SJ or higher, JASO MA)
Oil Capacity:
Approximately 1.2 - 1.4 liters (including filter, check manual for exact spec)
Crash Safety:
N/A (Motorcycle/scooter safety is typically evaluated by component performance and rider protection).
Braking System:
Powerful dual disc brakes, often with ABS as an option (check specific model variant). Front 260mm disc, Rear 240mm disc (typical).
Lighting:
Halogen headlights, LED taillights, turn signals.
Chassis Design:
Robust steel frame providing stability.
Fairings:
Full fairing provides wind protection for the rider.
Dashboard:
Digital and analog instrument cluster displaying speed, RPM, fuel level, coolant temperature, odometer, trip meter, and warning lights.
ABS Optional:
Anti-lock Braking System (ABS) available on some models, enhancing braking stability.
Diagnostics:
On-board diagnostic capabilities via ECU for engine management and fault detection.
Engine Oil Change:
Every 5,000 - 7,500 km or annually (refer to manual for precise interval).
Oil Filter Replacement:
With every oil change.
Air Filter Cleaning Or Replacement:
Every 5,000 - 10,000 km, or as needed based on operating conditions.
Spark Plug Replacement:
Every 10,000 - 15,000 km (check manual for specific plug type and gap).
Cv Belt Inspection Or Replacement:
Inspect every 10,000 km, replace typically around 20,000 - 30,000 km, but dependent on wear.
Coolant Replacement:
Every 2 years or 30,000 km (typically).
Brake Fluid:
DOT 4 (refer to manual for exact specification and replacement interval).
Coolant:
Ethylene glycol based antifreeze, mixed 50/50 with distilled water. (e.g., Piaggio Coolant or equivalent).
Common Problems:
Potential for stator/regulator failure, CVT belt wear, occasional electrical gremlins, and aging plastic components.
Preventative Measures:
Regular inspection of the CVT, electrical connections, and coolant levels can mitigate many potential issues.
