Gilera Nexus 500 Workshop Manual (P/N 633309)

• Covers the 2002–Present Gilera Nexus 500 (460 cm³ single-cylinder 4-stroke).
• Official Piaggio-Gilera reference documentation (Form 633309).
• 406 pages of precise technical specifications, component layouts, and exploded views.
• Primary reference for complete maintenance and mechanical overhaul of the M351M engine series.

Documentation Contents

The manual delivers a direct breakdown of the scooter's sub-systems, specifically detailing the ZAPM35100 chassis and M351M engine variants. It outlines everything from basic service intervals to full top-end rebuild parameters. You get clear schematics for the injection, suspension, and braking systems. When servicing critical components like the brake hydraulics or suspension geometry, always follow the outlined factory safety warnings and wear appropriate protective gear to maintain a secure working environment. Complete cooling system layouts and minor lubrication checkpoints are also thoroughly mapped out.

Technical Specifications & Tolerances

Precision matters when turning wrenches. This guide provides exact factory tolerances, including a category-based coupling table for cylinder/piston clearances down to 91.990–92.018 mm. Torque specs are listed for every major assembly: secure the drive pulley nut at 160–175 Nm and the rear wheel axle at 104–126 Nm.

Electrical diagnostics are straightforward thanks to comprehensive wiring diagrams and ECU connector pinouts. Quick-reference maintenance data is clearly defined to keep workflow efficient:

• Spark plug gap: 0.7–0.8 mm (NGK CR7EKB)
• Coolant capacity: 1.8 liters
• Valve clearance: 0.15 mm for both intake and exhaust (cold engine)