This manual covers the motorcycles produced between 2001 and 2002. The 400 is a notable member of the iconic naked sportbike lineage, recognized for its distinctive minimalist design and the characteristic performance of its V-twin, L-twin engine featuring desmodromic valvetrain. This model, often positioned as an accessible entry into the family, offers agile handling and a unique riding experience, embodying heritage of performance and Italian styling. Its air-cooled, 4-stroke engine, typically around 398 cc, delivers a spirited performance suitable for both daily riding and enthusiast enjoyment.

This comprehensive Parts Catalogue serves as an indispensable resource for identifying, ordering, and managing replacement components for the 400. It provides detailed exploded view diagrams for all major systems, including engine, transmission, chassis, electrical, braking, fuel, and bodywork, each accompanied by precise OEM part numbers and descriptions. The manual is designed to assist dealership technicians, independent repair shops, and owners undertaking their own maintenance and repairs. It is available in multiple languages, including English, German, Italian, Spanish, and French, ensuring broad accessibility for global users.