The Nexus 300 IE E3, produced in 2008, is a motorcycle scooter designed for riders seeking a blend of sporty performance and practical utility. As part of the premium maxi-scooter line, it embodies an Italian heritage, known for engineering quality and a focus on dynamic handling. This model features a 278 cc single-cylinder, 4-stroke engine with electronic fuel injection and liquid cooling, delivering approximately 22-24 horsepower. Its robust chassis, advanced braking systems with dual front discs, and automatic CVT transmission contribute to its appeal for both commuting and longer journeys. This comprehensive Service and Repair Manual is designed to provide detailed guidance for the maintenance, diagnosis, and repair of the Nexus 300 IE E3. Covering a wide array of systems including the engine, transmission, chassis, braking, and electrical components, it offers step-by-step procedures for routine maintenance, troubleshooting complex issues, and complete component rebuilds. With extensive diagrams, technical specifications, and diagnostic information, this manual serves as an essential resource for professional technicians and experienced owners aiming to ensure the optimal performance and longevity of their vehicle. 🏷️ Basic Information Identification Make: Gilera Model: Nexus 300 IE E3 Year: 2008 Category: Motorcycle Scooter Codes Model Code: MSS Nexus 300 IE E3 👋 Introduction Market Position Target User: Professional motorcycle technicians, dealership service departments, experienced DIY mechanics. Value Proposition: Provides the same authoritative and detailed information used by factory-trained technicians, enabling accurate and efficient maintenance and repair. Competitive Analysis Comparison To Owner Manuals: Significantly more in-depth than an owner's manual, offering technical specifications, diagnostic procedures, and repair instructions not found in basic user guides. Key Features Diagrams Illustrations: Extensive use of detailed diagrams, exploded views, and schematics to illustrate component layout and assembly sequences. Technical Data Emphasis: Focus on precise torque specifications, fluid capacities, tolerances, and electrical resistance values critical for accurate servicing. 📋 Manual Details Coverage Areas Primary Coverage: Maintenance, Service, Diagnosis, Repair Page Count Page Count: 315 Manual Type Manual Type: Service and Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Systems: Engine assembly, disassembly, tuning, diagnostics, fuel injection system, ignition system, lubrication system, cooling system, exhaust system. Transmission Drivetrain: Automatic transmission (CVT), final drive, clutch operation, variator, belt drive system. Chassis Frame: Frame structure, sub-frame, steering system, front suspension (forks), rear suspension (shock absorber, swingarm). Braking System: Front brake system (discs, calipers, master cylinder, hoses), rear brake system (disc, caliper, master cylinder, hoses), hydraulic system maintenance, bleeding procedures, brake pad replacement. Electrical System: Battery, starter motor, alternator, lighting system (headlights, taillights, turn signals), wiring diagrams, fuse box, instrument cluster, sensors, ECU diagnostics. Fuel System: Fuel tank, fuel pump, fuel filter, fuel injection (EFI) components, throttle body, injectors. Cooling System: Radiator, coolant, water pump, thermostat, hoses, fan. Bodywork Cosmetics: Fairings, body panels, seat removal, storage compartments, lighting fixture replacement. Procedures Included Routine Maintenance: Oil change, filter replacement (oil, air), spark plug inspection/replacement, drive belt inspection/replacement, coolant flush, brake fluid change, tire pressure checks. Troubleshooting: Step-by-step diagnostic procedures for common issues, fault code interpretation, electrical system troubleshooting, engine performance problems. Repair Rebuild: Complete engine rebuild procedures, transmission overhaul, suspension component replacement, brake system overhauls, electrical component repair/replacement. Inspections: Pre-ride inspection checklist, detailed component inspection guidelines (e.g., brake pad wear, tire tread depth, suspension linkage). Technical Depth Depth Level: Comprehensive: Covers everything from basic owner maintenance to full engine and component rebuilds, including detailed diagnostics and wiring diagrams. 📊 Manual Specifications File Format File Type: PDF Print Quality Searchability: Likely searchable text content (common for professionally produced PDFs), allowing for quick information retrieval. Image Clarity: High-resolution images and diagrams for clarity in repair and diagnostic procedures. Binding Type Binding: N/A (Digital Download) Paper Type Paper Quality: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Single-cylinder, 4-stroke, liquid-cooled, SOHC (Single Overhead Camshaft) Displacement: 278 cc (Cubic Centimeters) Bore X Stroke: 75 mm x 63 mm (typical for this engine family) Compression Ratio: 11.0:1 (typical) Performance Horsepower: Approximately 22-24 HP (Horsepower) at stated RPM (specific value to be confirmed in manual) Torque: Approximately 23-25 Nm (Newton-meters) at stated RPM (specific value to be confirmed in manual) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI), Single throttle body Fuel Type: Unleaded gasoline (RON 95 recommended) Ignition System Ignition Type: Electronic ignition, controlled by ECU Lubrication System Oil Type: API SG or higher, JASO MA certified 4-stroke motorcycle oil (e.g., 10W-40 or 15W-50, refer to manual for exact spec) Cooling System Coolant Type: Ethylene glycol-based coolant (50% mixture with distilled water) for freeze protection and corrosion inhibition. 🔧 Transmission Standard Transmission Type: Automatic Continuously Variable Transmission (CVT) with dry centrifugal clutch Optional Optional Transmission: N/A (CVT is standard) Features Drive Type: Belt drive to rear wheel Transmission Fluid: CVT systems typically do not require separate transmission fluid; oil is shared with the engine lubrication or specific CVT fluid...