Yamaha TZR 250 (1987)

The Yamaha TZR 250 is a 1987 two stroke motorcycle with a 249cc engine and parallel twin cylinders. It has a liquid cooling system, 2x Mikuni TM28SS carburetors, and a CDI ignition system. The max power is 50 hp at 10,000 rpm and max torque is 35.5 Nm at 9750 rpm. The transmission is 6-speed with a chain final drive. The front suspension is telescopic with adjustable preload and the rear suspension is coil and gas spring with 9-way preload position. The front brakes are single 320mm discs with 2 piston calipers and the rear brakes are a single 210mm disc with 1 piston caliper. The dimensions are length 2005mm, width 660mm, and wheelbase of 1375mm with a seat height of 760mm. The dry weight is 128kg and wet weight is 140kg with a fuel capacity of 16 liters. The road test was conducted by Motociclismo in 1987 and was part of a group test by Bike magazine in the same year.

Technical specifications:

Make Model: Yamaha TZR 250

Year: 1987
Engine: Two stroke, parallel twin cylinders, read valve,
Capacity: 249 cc / 15.2 cu-in
Bore x Stroke: 56.4 x 50 mm
Cooling System: Liquid cooled
Compression Ratio: 5.9:1
Induction: 2x Mikuni TM28SS carburetor
Ignition: CDI
Starting: Kick
Max Power: 50 hp / 36.4 kW @ 10000 rpm
Max Torque: 35.5 Nm / 26.2 lb-ft @ 9750 rpm
Transmission: 6 speed
Final Drive: Chain
Front Suspension: Telescopic fork adjustable preload
Front Wheel Travel: 140 mm / 5.5 in
Rear Suspension: Coil and gas spring preload 9-way preload position
Rear Wheel Travel: 100 m / 3.9 in
Front Brakes: Single 320mm discs 2 piston calipers
Rear Brakes: Single 210mm disc 1 piston caliper
Front Tyre: 100/80-17
Rear Tyre: 120/80-17
Dimensions: Length 2005 mm / 78.9 in Width 660 mm / 25.9 in
Wheelbase: 1375 mm / 54.1 in
Seat Height: 760 mm / 29.9in
Dry Weight: 128 kg / 282.1 lbs
Wet Weight: 140 kg / 308.6 lbs
Fuel Capacity: 16 Litres / 4.2 US gal
Road Test: Motociclismo 1987 Bike magazine Group test 1987