The Yamaha TDR250 was a street-legal
middleweight dual-sport bike produced by Japanese motorcycle manufacturer
Yamaha Yamaha may refer to:
* Yamaha Corporation, a Japanese company with a wide range of products and services, established in 1887. The company is the largest shareholder of Yamaha Motor Company (below).
** Yamaha Music Foundation, an organization estab ...
between 1988 and 1993.
It was powered by the naturally-aspirated, crankcase reed-valve inducted, liquid-cooled 249cc
parallel-twin
A straight-twin engine, also known as an inline-twin, vertical-twin, or parallel-twin, is a two-cylinder Reciprocating engine, piston engine whose cylinders are arranged in a line along a common crankshaft.
Straight-twin engines are primarily u ...
two-stroke engine
A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a power cycle with two strokes (up and down movements) of the piston during one power cycle, this power cycle being completed in one revolution of t ...
from the first generation
TZR250 (this same engine also powered the
R1-Z). This engine featured the 'YPVS' Yamaha Power Valve System,
CDI ignition and
digital spark advancebr>
Almost all of the engine, gearbox, and electrical components are interchangeable with the TZR and R1-Z.
The TDR was designed to provide agile handling and quick acceleration both on and off the road, and power delivery was modified to suit its intended us
The special upswept expansion chambers, unique to the TDR, part of this; as well as aiding ground clearance. The bike was originally released in a 250cc format, but a 240cc derivative was also produced exclusively for the French market.
Specifications of TDR 250
Note: []= French Model
External links
*[Yamaha Global - https://global.yamaha-motor.com/]
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Yamaha motorcycles, TDR 250
Dual-sport motorcycles
Motorcycles introduced in 1988
Motorcycles powered by straight-twin engines