This document provides comprehensive information for the 1991 Yamaha Big Bear 350 ATV. Engineered for reliable performance, this 4-stroke, 348cc gasoline-powered All-Terrain Vehicle is designed for robust utility and recreational use. Its 4x2 drive system ensures dependable handling across various terrains, reflecting a commitment to quality and durability in off-road offerings.

This Service Manual in English is an essential resource for owners and technicians alike. It covers all critical aspects of the Big Bear 350, including general information, detailed maintenance procedures, technical specifications, periodic checks and adjustments, engine and drive train servicing, chassis and electrical system details, and troubleshooting guidance. With over 400 pages of in-depth instructions, this manual facilitates the proper upkeep and repair of your vehicle, ensuring its continued optimal performance and longevity.