The Yamaha TDR250, model code 3XD, is a distinctive dual-purpose motorcycle from 1988 that uniquely blended the exhilarating performance of a two-stroke engine with the versatility of an adventure-styled chassis. Engineered with a liquid-cooled, 249cc parallel-twin two-stroke engine, it offered strong mid-range and top-end power, making it suitable for both spirited on-road riding and light off-road excursions. Its robust steel diamond frame, coupled with adjustable front telescopic forks and a rear Monocross suspension system, provided capable handling. The TDR250 is recognized for its engaging performance characteristics and its unique market position, appealing to riders seeking a versatile and exciting machine.

This comprehensive parts manual serves as an indispensable resource for owners, mechanics, and technicians involved in the maintenance and repair of the Yamaha TDR250. It provides detailed exploded view diagrams and precise part numbers for every component across all major systems, including the engine, fuel system, ignition, cooling, exhaust, transmission, clutch, chassis, suspension, brakes, wheels, tires, and electrical systems. The manual's scope covers essential parts such as the cylinder head, crankshaft, carburetors, frame, forks, shock absorbers, brake calipers, and wiring harnesses, facilitating accurate part identification, ordering, and installation. Its primary purpose is to ensure the correct sourcing of replacement parts, thereby supporting the efficient upkeep and restoration of the vehicle to its optimal condition.