This document provides comprehensive technical information for the Velosolex Solex S3800 moped engine. Engineered for reliability, this 2-stroke, 38cc air-cooled engine is designed for efficient operation using a gasoline and oil mixture. Its robust construction and straightforward design have made it a popular choice for personal transportation. This manual details the engine's specifications, maintenance requirements, and repair procedures, ensuring optimal performance and longevity for your vehicle.

The purpose of this factory engine service manual and parts catalogue is to equip owners, mechanics, and technicians with the necessary knowledge for the upkeep and repair of the Solex S3800 engine. It covers all essential systems, offering detailed maintenance procedures, troubleshooting guidelines, diagnostic information, and a complete parts catalogue. This French-language resource is formatted for clarity and usability, enabling effective service and repair operations.