The Yamaha TTR90, produced around the year 2000, is an entry-level, youth-oriented off-road motorcycle designed for recreational and trail riding. This durable dirt bike features a reliable, air-cooled, four-stroke 88cc engine, often equipped with electric start, making it user-friendly for beginner riders. Its robust steel cradle frame, simple operation, and user-friendly power delivery contribute to its reputation for dependability and enjoyment, positioning it as a strong choice within its competitive segment.

This comprehensive service manual provides detailed information for the maintenance and repair of your Yamaha TTR90. It covers essential systems including the engine, transmission, chassis, and electrical components, offering step-by-step procedures for disassembly, assembly, inspection, and troubleshooting. With clear instructions and technical specifications, this manual is an indispensable resource for owners, mechanics, and technicians aiming to keep the TTR90 in optimal condition and ensure its longevity.