The Yamaha TZR 250R-SP is a 1992 motorcycle with a two-stroke, V-twin cylinder engine and a capacity of 249.7cc. Its compression ratio is 7.5:1, and it has a liquid cooling system and 2x Mikuni flatside carburetor induction. Its ignition is microcomputer controlled and it starts with a kick. The bike can reach a maximum power of 45hp at 9500rpm and torque of 3.8kgf-m at 8000rpm. Transmission is six-speed and final drive is through a chain. The suspension consists of 39mm upside-down forks at the front and monocross linkage at the rear. The brakes are two discs with four-piston calipers at the front and a single disc with a two-piston caliper at the rear. The front and rear tires measure 110/70 Z17 and 150/60 Z17 respectively. The bike measures 1960mm in length, 680mm in width, and 1075mm in height, and has a wheelbase of 1340mm and a dry weight of 126kg. Its fuel capacity is 15 litres and it can achieve a top speed of 180.2km/h. It was road tested by Motosprint in 1991 and Performance Bike in 1991.
Technical specifications:
Make Model: Yamaha TZR 250R-SP
| Year | 1992 |
|---|---|
| Engine | Two stroke, 90 degrees V-Twin cylinder, read valve induction |
| Capacity | 249.7 cc / 15.2 cu-in |
| Bore x Stroke | 56 x 50.7 mm |
| Cooling System | Liquid cooled |
| Compression Ratio | 7.5:1 |
| Induction | 2x Mikuni flatside carburetor |
| Ignition | Microcomputer controlled |
| Starting | Kick |
| Max Power | 45 hp / 33.6 kW @ 9500 rpm |
| Max Torque | 3.8 kgf-m / 40 Nm @ 8000 rpm |
| Transmission | 6 Speed |
| Final Drive | Chain |
| Front Suspension | 39mm Upside-down forks |
| Rear Suspension | Monocross linkage |
| Front Brakes | 2X disc 4 piston calipers |
| Rear Brakes | Single disc 2 piston caliper |
| Front Tyre | 110/70 Z17 |
| Rear Tyre | 150/60 Z17 |
| Dimensions | Length 1960 mm / 77.1in Width 680 mm / 26.7 in Height 1075 mm / 42.3 in |
| Wheelbase | 1340 mm / 52.8 in |
| Seat Height | 780 mm / 30.7 in |
| Dry Weight | 126 kg / 277.8 lbs |
| Fuel Capacity | 15 Litres / 4.0 gal |
| Top Speed | 180.2 km/h / 112 mph |
| Road Test | Motosprint 1991 Performance Bike 1991 |
