Yamaha SRX250F (1987-90)

The Yamaha SRX 250F motorcycle was produced between 1987 and 1990. It featured a four-stroke, single cylinder, DOHC, and 4-valve engine with a capacity of 249cc. The bike had a compression ratio of 10.0:1, and operated with a Y22PV Teikei carburetor and TCI ignition. The SRX 250F’s electric starting capabilities enabled it to deliver a maximum power of 32 horsepower at 10000 rpm, and peak torque of 2.4 kgf-m at 8500 rpm.

The motorcycle featured a six-speed transmission, a chain final drive, and a centre axle 33mm front fork suspension with 140mm of front wheel travel. The SRX 250F also featured a single shock rear suspension, adjustable spring preload, and 100mm of rear wheel travel. The front brakes on the bike were a single disc with a two-piston caliper, and the rear brakes were a drum. The SRX 250F had a 90/90-16 front tire and a 100/90-18 rear tire.

The bike’s seat height was 780mm, its dry weight was 123kg, and its wet weight was 137kg. The Yamaha SRX 250F had a fuel capacity of 9 litres or 2.3 US gallons.

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Technical specifications:

Make Model: Yamaha SRX 250F

Year: 1987 – 90

Engine: Four stroke, single cylinder, DOHC, 4 valves

Capacity: 249 cc / 15.2 cu-in

Bore x Stroke: 73 59.6 mm

Cooling System: Air cooled

Compression Ratio: 10.0:1

Induction: Y22PV Teikei carburetor

Ignition: TCI

Starting: Electric

Max Power: 32 hp / 23.8 kW @ 10000 rpm

Max Torque: 2.4 kgf-m / 17.3 lb-ft @ 8500 rpm

Transmission: 6 Speed

Final Drive: Chain

Front Suspension: Centre axle 33mm forks

Front Wheel Travel: 140 mm / 5.9 in

Rear Suspension: Single shock, adjustable spring preload

Rear Wheel Travel: 100 mm / 3.9 in

Front Brakes: Single disc 2 piston caliper

Rear Brakes: Drum

Front Tyre: 90/90-16

Rear Tyre: 100/90-18

Seat Height: 780 mm / 30.7 in

Dry Weight: 123 kg / 371 lbs

Wet Weight: 137 kg / 302 lbs

Fuel Capacity: 9 Litres / 2.3 US gal