🏷️ Basic Information

Make:

Gilera

Model:

Nexus 500

Engine Type:

Euro 3 compliant

Internal Product Identifier:

GIL-NEX500-E3-WSM-DL

👋 Introduction

Market Positioning:

The Gilera Nexus 500 was positioned as a premium, high-performance maxi-scooter, blending sports-oriented handling with comfortable touring capabilities. It competed in a segment with other large-displacement scooters offering substantial power and advanced features.

Key Competitors:

Yamaha TMAX, Suzuki Burgman 400/650, Piaggio X9/Xevo 500, Honda Silver Wing 500.

Key Features:

Powerful 500cc engine, advanced suspension design for its class, substantial under-seat storage, comfortable ergonomics for longer rides, and sporty aesthetics.

Value Proposition:

This workshop manual provides factory-level technical data, enabling owners and technicians to perform accurate diagnostics, maintenance, and repairs, thereby maximizing the lifespan and performance of the Gilera Nexus 500.

📋 Manual Details

Systems Covered:

Engine, Injection System, Cooling System, Braking System, Suspensions, Chassis, Electrical System, Tooling, Maintenance, Pre-Delivery, Timing

Page Count Estimated:

Refer to actual manual (typically 300-600 pages for this type of comprehensive workshop manual)

Manual Type:

Workshop Manual / Service Repair Manual

Language:

English

File Format:

PDF

📖 Manual Coverage

Engine Mechanical:

Complete engine disassembly, assembly, component inspection, and overhaul procedures (pistons, rings, cylinders, crankshaft, connecting rods, valves, camshafts, cylinder head).

Fuel Injection:

Detailed diagnosis and repair of the electronic fuel injection (EFI) system, including fuel pump, injectors, throttle body, sensors (MAP, TPS, IAT, ECT), ECU troubleshooting, and fuel pressure checks.

Cooling System:

Radiator, water pump, thermostat, coolant hoses, fan operation, bleeding procedures, and coolant specifications.

Braking System:

Front and rear brake caliper service, pad replacement, disc inspection, hydraulic system bleeding, master cylinder overhaul, and brake fluid specifications.

Suspensions:

Front telescopic fork service (oil change, seal replacement, spring inspection), rear shock absorber inspection and replacement, linkage adjustments, and wheel bearing service.

Chassis And Frame:

Frame inspection, steering head bearing service, swingarm removal and inspection, and general chassis component tightening and alignment.

Electrical System:

Wiring diagrams, battery service, charging system (stator, rectifier/regulator), starter motor, lighting system (headlights, taillights, indicators), ignition system, fuses, relays, and troubleshooting of electrical faults.

Maintenance:

Routine service tasks including oil and filter changes, spark plug replacement, air filter service, coolant checks and changes, drive belt inspection and replacement, and valve clearance adjustments.

Troubleshooting:

Systematic diagnostic procedures for identifying and resolving common and uncommon issues across all major vehicle systems.

Assembly Disassembly:

Step-by-step instructions for the removal and installation of all major components and sub-assemblies.

Depth:

Comprehensive: Covers basic maintenance to complete engine rebuilds, advanced diagnostics, and detailed component specifications. Suitable for professional technicians and experienced DIY mechanics.

📊 Manual Specifications

File Format Details:

High-quality PDF, searchable text for efficient information retrieval.

Print Quality:

All pages are printable with excellent clarity and detail.

Binding Type:

Digital Download (No physical binding)

Paper Type:

N/A (Digital Format)

Compatibility:

Compatible with all versions of Windows and Mac operating systems.

Software Requirements:

Requires Adobe PDF Reader or compatible PDF viewer.

⚙️ Engine Specifications

Engine Make Model:

Piaggio LEADER 500

Engine Configuration:

Single-cylinder, four-stroke

Displacement:

492.7 cc (30.1 cu in)

Bore X Stroke:

94 mm x 71 mm

Valve Train:

SOHC, 4 valves per cylinder

Horsepower Estimated:

Approximately 40-43 hp (depending on specific market tune and emission controls)

Torque Estimated:

Approximately 46-48 Nm (depending on specific market tune and emission controls)

Fuel Delivery:

Electronic Fuel Injection (EFI) with throttle body, likely Marelli or Keihin system.

Fuel Type:

Unleaded Petrol (Gasoline)

Oil Type Recommendation:

SAE 10W-40 or 5W-40 Synthetic Motorcycle Oil meeting API SG/SH/SJ or higher specifications. (Refer to manual for exact spec and capacity).

Cooling Medium:

Liquid Cooled

🔧 Transmission

Transmission Type:

Automatic (CVT - Continuously Variable Transmission)

Clutch Type:

Automatic centrifugal clutch

Drive Type:

Belt drive to rear wheel

Cvt Fluid Type:

Refer to manual for specific CVT fluid type and capacity (typically a dedicated CVT fluid is not used; the engine oil lubricates the CVT mechanism).

📐 Dimensions

Length Estimated:

Approx. 2150 mm

Width Estimated:

Approx. 780 mm

Height Estimated:

Approx. 1450 mm (with windscreen)

Dry Weight Estimated:

Approx. 185 kg

Gross Vehicle Weight Rating Estimated:

Approx. 380 kg

Underseat Storage:

Significant storage capacity, typically accommodates one full-face helmet and other items.

🛡️ Safety Features

Safety Ratings:

N/A (Motorcycle safety is assessed through component performance and manufacturer testing, not formal crash test ratings as with cars).

Active Safety Features:

Disc brakes front and rear (likely with optional ABS on some models), stable chassis dynamics.

Passive Safety Features:

Robust frame construction, integrated lighting, handguards (on some variants).

💡 Technology Features

Infotainment Features:

Basic instrumentation typically includes speedometer, tachometer, fuel gauge, coolant temperature gauge, and warning lights. No advanced infotainment systems expected.

Driver Assistance Features:

Optional ABS was available on some models, providing enhanced braking stability.

Connectivity Features:

No modern connectivity features like Bluetooth or smartphone integration.

🔧 Maintenance

Engine Oil Change Interval:

Every 5,000 - 7,500 km or Annually (Refer to manual for precise interval and conditions).

Air Filter Replacement Interval:

Every 10,000 - 15,000 km (Check and clean more frequently).

Spark Plug Replacement Interval:

Every 15,000 - 20,000 km.

Coolant Change Interval:

Every 2-3 years or 20,000 - 30,000 km.

Drive Belt Replacement Interval:

Every 15,000 - 25,000 km (Inspect for wear and damage more frequently).

Engine Oil Capacity:

Approx. 1.6 - 1.8 Liters (with filter change). Exact capacity to be confirmed in manual.

Coolant Type:

Ethylene Glycol based antifreeze with corrosion inhibitors. Mix 50/50 with distilled water. (Refer to manual for specific Gilera or Piaggio recommended coolant).

Brake Fluid Type:

DOT 4.

Common Wear Items:

Drive belt wear, voltage regulator failure, water pump seal leaks, and front fork seal leaks are common for scooters of this age and type.

Diagnostic Considerations:

EFI system issues can manifest as rough running, poor acceleration, or starting problems. Proper diagnostic tools or knowledge of the specific EFI system's error codes are beneficial.

📚 Vehicle History

Brand Heritage:

Gilera is an Italian manufacturer with a long history in motorcycling, known for its sporty and performance-oriented scooters and motorcycles. It is part of the Piaggio Group.

Model Evolution:

The Nexus 500 was introduced in the early 2000s as Gilera's flagship maxi-scooter, aiming to offer a more performance-focused alternative to the typical comfortable touring scooters. It benefited from Piaggio's engine development, utilizing the powerful LEADER engine.

Production Period:

Produced from approximately 2003 through to the early 2010s, with updates to meet emissions standards (like Euro 3).

🏆 Awards & Recognition

Market Recognition:

The Gilera Nexus 500 was generally well-regarded for its performance and handling characteristics, often praised by reviewers for its sporty feel and capability for longer journeys compared to smaller scooters.

User Ratings Historical:

Owners often cite its powerful engine and comfortable ride as major positives, while some mention the complexity of certain repairs or potential issues with the electrical system as drawbacks.