Yamaha SR250

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Yamaha SR250 (1st gen.)
Yamaha SR250 blue.jpg
Manufacturer Yamaha Motor Company
Also called Exciter I (US)
Parent company Yamaha Corporation
Production 1980–1984
Class Standard
Engine 249 cc (15.2 cu in) SOHC 2-valves per cyl. single
Bore / stroke 75.0 mm × 56.5 mm (2.95 in × 2.22 in)
Compression ratio 9.2:1
Top speed 130 km/h (80 mph)[1]
Power 21.0 bhp (15.7 kW) @ 8,000 rpm (claimed)[1]
Torque 18.8 lb·ft (25.5 N·m) @ 6,500 rpm (claimed)[1]
Ignition type Transistorized electronic ignition
Transmission Multiplate wet clutch, 5-speed, chain
Frame type Steel. Stressed member engine
Suspension Front: telescopic fork, 140 mm (5.5 in) travel.
Rear:Swingarm, 84 mm (3.3 in) travel
Brakes Front: 159 mm (6.25 in) drum
Rear: 130 mm (5.2 in) drum
Tires Yokohama. Front: 3.00-18
Rear: 120/80-16
Rake, trail 27.5°, 120 mm (4.8 in)
Wheelbase 1,340 mm (52.75 in)
Dimensions W: 710 mm (28.0 in)
Seat height 740 mm (29.0 in)
Weight 130 kg (287 lb) (½ tank)[1] (wet)
Fuel capacity 10 l; 2.2 imp gal (2.7 US gal)[1]
Fuel consumption 76 mpg‑US (3.1 L/100 km; 91 mpg‑imp)[1]

The Yamaha SR250 is a single cylinder motorcycle made by Yamaha Motor Company from 1980 to 1982 for the first generation, and since 2001 for the second generation. It shares styling with the larger Yamaha SR500. The first generation had a 249 cc (15.2 cu in) displacement and the second generation was 239 cc (14.6 cu in).

History[edit]

The SR250 was produced from 1980 to 1982 in the United States, as well as from 1982 to 2000 in Spain, in two versions. While it has stylistic similarities with its older brothers the SR500 and SR400, the SR250 is very much a commuter bike. In 1980 Cycle World's test of the SR250, called the Exciter I in the US with added high, cruiser style handlebars, found a standing 14-mile (0.40 km) time of 16.36 seconds at 122.89 km/h (76.36 mph), acceleration from 0 to 97 km/h (0 to 60 mph) of 11.5 seconds, and a top speed of 130 km/h (80 mph).[1] Braking distance from 60 to 0 mph (97 to 0 km/h) was 38 m (125 ft), and tested fuel consumption was 76 mpg‑US (3.1 L/100 km; 91 mpg‑imp), giving a range of 269 km (167 mi).[1]

2001 model[edit]

Yamaha SR250 (2nd gen.)
Yamaha SR250 (2nd gen.).jpg
Manufacturer Yamaha
Production 2001–
Engine 239 cc (14.6 cu in) single, air cooled, four-stroke
Transmission 5-speed sequential
Related Yamaha SR500

In 2001, Yamaha released their most recent SR250 due to popular demand for reliable commuters. This model is modeled after the SR500. The two bikes have subtle differences such as engine capacity and wheel size, however they are essentially of the same overall design.

Notes[edit]

  1. ^ a b c d e f g h Girdler, Alan, ed. (August 1980), "Yamaha Exciter I SR250", Cycle World, Newport Beach, California: Hachette Filipacchi Media U.S., vol. 19 no. 8, pp. 67–70, ISSN 0011-4286 

External links[edit]

Official website