Yamaha TDR 250
From Wikipedia, the free encyclopedia
| Yamaha TDR 250 | |
|---|---|
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| Manufacturer | Yamaha |
| Also called | Ultimate Dual |
| Production | 1988 - 1993 |
| Class | Dual Sport |
| Engine | Two-Stroke Parallel Twin YPVS |
| Transmission | 6 Speed Constant Mesh |
| Wheelbase | 1,385 mm |
| Seat Height | 820 mm |
| Fuel Capacity | 14.0 litres |
The Yamaha TDR 250 is a dual purpose motorcycle manufactured by Yamaha between 1988 and 1993. It is powered by a two-stroke parallel twin engine utilizing the Yamaha Power Valve System (YPVS). Designed to provide agile handling and quick acceleration for both on and off road use. It was the world's first two stroke to use a CDI ignition and digital advance system [1]
The engine is essentially a Yamaha TZR 250 unit with a modified power delivery to suit the TDR's intended use [2] - many of the parts are interchangeable. It was originally released in a 250 cc format and a 240 cc format exclusively for the French market.
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[edit] Specifications of TDR 250
| Engine Type | Parallel Twin Cylinder, Water Cooled, Two-Stroke, YPVS |
|---|---|
| Carburetion | Mikuni TM28SS x 2 |
| Displacement | 249 cc [239 cc] |
| Bore × Stroke | 56.4 x 50.0 mm [55.2 x 50.0 mm] |
| Peak Power | 50.3 PS (37.1 kW) @ 10,000 rpm [44.3 PS (32.6 kW) @ 10,000 rpm] |
| Peak Torque | 3.7 kg-m (36.2 Nm) @8,500 rpm [3.5 kg-m (34.6 Nm) @9,500 rpm] |
| Compression Ratio | 5.9:1 [5.7:11] |
| Fuel Capacity | 14 L |
| Oil Capacity | 1.5 L |
| Seat Height | 820mm |
| Dry Weight | 137 kg |
| Tires | Front 100/90-18H Rear 120/80-17H |
| Brakes | Front Hydraulic disc, with 320 mm floating disc and 4-pot opposed-piston caliper. Rear Hydraulic disc, with 210 mm disc and opposed-piston caliper |
| Final drive | Chain |
Note: []= French Model
[edit] External links
[edit] Official websites
- Yamaha Motor Co. ltd - YMC- Japan (Global)
- Yamaha Racing (Global)
- (Japanese) Yamaha Motor Co. ltd - YMC -Japan
- Yamaha Motor Europe N.V. - YME - Europe
- Yamaha Motor Corporation - YMUS - USA
