🏷️ Basic Information

Make:

Gilera

Model:

Nexus 300 E3

Year:

2008

Vehicle Type:

Maxi-scooter

Engine Code Designation:

M392 - Piaggio LEADER 300

Emissions Standard:

Euro 3 (E3)

👋 Introduction

Segment:

Premium Sport/GT Scooter

Target Audience:

Riders seeking performance, comfort, and advanced features for urban commuting and touring.

Key Competitors:

Yamaha TMAX, Suzuki Burgman 400, Honda Silver Wing, Aprilia Scarabeo 300.

Styling:

Aggressive, sporty design with automotive-inspired styling.

Performance:

Strong acceleration and comfortable cruising speeds, suitable for highways.

Handling:

Sport-oriented chassis and suspension for agile handling.

Comfort:

Spacious seating, good wind protection, and ample legroom for rider and passenger.

📋 Manual Details

Market Availability:

Global (primarily Europe)

Estimated Pages:

350-450

Type:

Workshop Service and Repair Manual

Language:

English

Format:

PDF Download

📖 Manual Coverage

Engine Mechanical:

Complete disassembly, inspection, repair, and reassembly of all engine components.

Engine Management System:

Diagnosis and repair of electronic fuel injection (EFI), ignition system, and sensors.

Transmission And Drivetrain:

Automatic CVT (Continuously Variable Transmission) servicing, clutch inspection, belt replacement, and final drive maintenance.

Fuel System:

Fuel pump, injectors, fuel filter, and fuel tank servicing.

Cooling System:

Radiator, water pump, thermostat, hoses, and coolant specifications.

Exhaust System:

Catalytic converter, muffler, and exhaust pipe inspection and replacement.

Front Brakes:

Disc brake caliper overhaul, pad replacement, rotor inspection, and hydraulic system bleeding.

Rear Brakes:

Disc brake caliper overhaul, pad replacement, rotor inspection, and hydraulic system bleeding.

Front Suspension:

Telescopic fork servicing, oil replacement, seal replacement, and adjustment procedures.

Rear Suspension:

Shock absorber inspection and replacement, swingarm maintenance.

Steering:

Handlebar removal/installation, steering bearing inspection and adjustment.

Lighting:

Headlight, taillight, turn signal, and brake light bulb replacement and troubleshooting.

Battery And Charging:

Battery testing, charging system diagnosis (alternator/stator, regulator/rectifier).

Ignition System:

Spark plug replacement, ignition coil testing.

Wiring Diagrams:

Comprehensive electrical schematics for all systems.

Body Panels:

Fairing removal and installation, seat servicing, storage compartment access.

Frame:

Frame inspection and integrity checks.

Preventative Maintenance:

Scheduled maintenance tasks, fluid changes, filter replacements, lubrication points.

Troubleshooting:

Diagnostic procedures for common and uncommon issues across all systems.

Component Overhaul:

Detailed step-by-step instructions for rebuilding key components.

Replacement Procedures:

Guidance on replacing wear items and faulty parts.

Torque Specifications:

Essential torque values for all fasteners and critical components.

Depth:

Comprehensive, covering all aspects from basic maintenance to complete engine rebuilds and advanced diagnostics.

📊 Manual Specifications

File Type:

Portable Document Format (PDF)

Searchability:

Searchable text for quick information retrieval.

Image Resolution:

High-resolution scans with clear, legible text and diagrams.

Diagram Clarity:

Detailed, step-by-step diagrams, often with exploded views, illustrating repair procedures.

Binding:

Not Applicable (Digital Download)

Paper:

Not Applicable (Digital Download)

⚙️ Engine Specifications

Engine Type:

Four-stroke, single-cylinder, liquid-cooled, SOHC, 4 valves

Displacement:

278 cc

Bore X Stroke:

75 mm x 63 mm

Compression Ratio:

11.0:1

Horsepower:

Approximately 22.5 HP (16.8 kW) @ 7500 rpm (manufacturer data varies slightly)

Torque:

Approximately 23.2 Nm (17.1 lb-ft) @ 6000 rpm (manufacturer data varies slightly)

Fuel Delivery:

Electronic Fuel Injection (EFI)

Fuel Type:

Unleaded Gasoline (95 RON recommended)

Fuel Tank Capacity:

12 Liters (approx. 3.17 US gallons)

Ignition Type:

Electronic ignition with variable spark advance

🔧 Transmission

Type:

Automatic Continuously Variable Transmission (CVT)

Clutch:

Automatic centrifugal dry clutch

Final Drive:

Geared, oil lubricated

📐 Dimensions

Length:

Approx. 2150 mm

Width:

Approx. 790 mm (at handlebars)

Height:

Approx. 1350 mm (at windscreen)

Wheelbase:

Approx. 1520 mm

Dry Weight:

Approx. 177 kg

Wet Weight:

Approx. 185 kg (fully fueled)

Front Wheel:

15-inch alloy

Front Tire Size:

120/70-15

Rear Wheel:

14-inch alloy

Rear Tire Size:

140/60-14

Seat Height:

Approx. 800 mm

🛡️ Safety Features

Crash Test Ratings:

Not applicable (motorcycle/scooter safety is primarily based on design, features, and rider behavior).

Braking System:

Hydraulic disc brakes front and rear, often with linked braking capabilities (integral braking).

Lighting System:

Multi-reflector headlights, LED taillights, clear lens turn signals.

Chassis Design:

Steel frame designed for rigidity and stability.

Wind Protection:

Aerodynamic fairing and adjustable windscreen for rider comfort and protection.

💡 Technology Features

Dashboard Display:

Digital and analog combination instrument cluster with speedometer, tachometer, fuel gauge, coolant temperature, and indicator lights.

Lighting Technology:

Halogen headlight, incandescent or LED taillights and turn signals.

ABS:

Optional or standard on some models/markets (check specific VIN), not universally fitted for 2008.

Connectivity Features:

Basic electrical systems for ignition, lighting, and instrumentation. No integrated smartphone connectivity or advanced electronics.

🔧 Maintenance

Oil Change Interval:

Every 6,000 km or 12 months (whichever comes first).

Air Filter Replacement:

Every 12,000 km or as needed based on inspection.

Spark Plug Replacement:

Every 12,000 km.

Cvt Belt Inspection:

Every 12,000 km for wear and damage, replacement typically around 20,000-30,000 km.

Coolant Replacement:

Every 24,000 km or 24 months.

Engine Oil Type:

SAE 5W-40 API SG or higher, or JASO MA compliant.

Engine Oil Capacity:

1.7 Liters (with filter change).

Coolant Type:

Ethylene glycol-based coolant with anti-corrosion additives (e.g., Piaggio or equivalent).

Brake Fluid Type:

DOT 4.

Final Drive Oil Type:

Gear oil API GL-4 SAE 80W-90.

Final Drive Oil Capacity:

0.22 Liters.

Common Wear Items:

CVT belt, brake pads, suspension seals, starter motor brushes (depending on mileage).

Potential Electrical:

Occasional issues with regulator/rectifier or stator windings can occur with age and mileage.

Engine Performance Notes:

Ensure proper valve clearance adjustment for optimal performance and fuel economy.

📚 Vehicle History

Manufacturer History:

Gilera is an Italian motorcycle manufacturer with a long history dating back to 1909, known for its performance-oriented scooters and motorcycles. It is part of the Piaggio Group.

Nexus Series:

The Nexus series represented Gilera's foray into the high-performance maxi-scooter segment, blending sportbike handling with practical scooter utility. The 300cc model provided a balance of performance and efficiency within the range.

Production Years:

The Nexus 300 was primarily produced in the mid-to-late 2000s, with the 2008 model being a key year for the E3 variant.

🏆 Awards & Recognition

Industry Awards:

While specific awards for the 2008 Nexus 300 are not widely documented, the Nexus series in general received positive reviews for its performance, handling, and GT capabilities within the scooter market.

Owner Satisfaction:

Generally positive, particularly from owners who value its sporty character and motorway capability.