Yamaha RD 350F (1987-89) vs Yamaha TZR 250 (1989)
Comparison technical specifications
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| Make: | Yamaha | Yamaha |
| Model: | RD 350F | TZR 250 |
| Years: | 1987-89 | 1989 |
| Engine: | Two stroke, parallel twin cylinder, YPVS | Two stroke, parallel twin cylinders, read valve, |
| Capacity: | 347 cc / 21.1 cu-in | 249 cc / 15.2 cu-in |
| Bore x Stroke: | 64 х 54 mm | 56.4 x 50 mm |
| Cooling System: | Liquid cooled | Liquid cooled |
| Compression Ratio: | 6.2 :1 | 5.9:1 |
| Induction: | 2x 26mm Mikuni slide-needle carburetor | 2x Mikuni TM28SS carburetor |
| Ignition: | Flywheel magneto CDI | CDI |
| Starting: | Kick | Kick |
| Max Power: | 63 PS / 46.3 kW @ 9000 rpm | 50 hp / 36.4 kW @ 10000 rpm |
| Max Torque: | 49.1 Nm / 5.0 kg-m @ 9000 rpm | 35.5 Nm / 26.2 lb-ft @ 9750 rpm |
| Transmission: | 6 Speed | 6 speed |
| Final Drive: | Chain | Chain |
| Front Suspension: | 35mm Telescopic forks air assistance and variable damping | Telescopic fork adjustable preload |
| Front Wheel Travel: | 140 mm / 5.5 in | 140 mm / 5.5 in |
| Rear Suspension: | Rising rate Monocross 5-way preload | Coil and gas spring preload 9-way preload position |
| Rear Wheel Travel: | 100 mm / 3.9 in | 100 m / 3.9 in |
| Front Brakes: | 2x 260mm disc 2 piston calipers | Single 320mm discs 2 piston calipers |
| Rear Brakes: | Single 260mm disc 1 piston caliper | Single 210mm disc 1 piston caliper |
| Front Tyre: | 90/90-18 51H | 100/80-17 |
| Rear Tyre: | 110/80-18 58H | 120/80-17 |
| Dimensions: | Length 2095 mm / 82.4 in Width 700 mm / 27.5 in Height 1190 mm / 46.8 in | Length 2005 mm / 78.9 in Width 660 mm / 25.9 in |
| Wheelbase: | 1385 mm / 54.5 in | 1375 mm / 54.1 in |
| Seat Height: | 790 mm / 31.1 in | 760 mm / 29.9in |
| Dry Weight: | 141 kg / 310.8 lbs | 128 kg / 282.1 lbs |
| Wet Weight: | 155 kg / 341.7 lbs | 140 kg / 308.6 lbs |
| Fuel Capacity: | 17 Litres / 4.5 US gal | 16 Litres / 4.2 US gal |