Yamaha RD 200 (1976) vs Yamaha TX 750 (1972) vs Yamaha RD 350 (1976) vs Yamaha SR 500 (1976-77)
Comparison technical specifications
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| Make: | Yamaha | Yamaha | Yamaha | Yamaha |
| Model: | RD 200 | TX 750 | RD 350 | SR 500 |
| Years: | 1976 | 1972 | 1976 | 1976-77 |
| Engine: | Two stroke, torque induction, parallel twin | Four stroke, parallel twin cylinders, SOHC 2 valve per cylinder | Two stroke, parallel twin cylinder, reed valves | Four stroke, single cylinder, SOHC, 2 valves per cylinder. |
| Capacity: | 195 cc / 11.8 cu-in | 743 cc / 45.3 cu-in | 347 cc / 21.1 cu-in | 499 cc / 30.4 cu-in |
| Bore x Stroke: | 52 х 46 mm | 80 x 74 mm | 64 х 54 mm | 87 х 84 mm |
| Cooling System: | Air cooled | Air cooled | Air cooled | Air cooled |
| Compression Ratio: | 7.1:1 | 8.8:1 | 6.6:1 | 9.0:1 |
| Induction: | 2x Y20P Carburetors | Carburetor | 2, Mikuni VM28 SC | 34mm Mikuni VM34SS carburetor |
| Ignition: | Battery coil | Battery, dual coils, breaker points | CDI | |
| Starting: | Electric & Kick | Electric & Kick | Kick | Kick |
| Max Power: | 20 hp / 14.7 kW @ 8000 rpm | 63 hp / 45.9 kW @ 6100 rpm | 39 hp / 28.5 kW @ 7500 rpm | 31.5 hp / 23.5 kW @ 6500 rpm |
| Max Torque: | 1.9 kgf-m / 8.6 Nm @ 7000 rpm | 7 kgf-m / 50.6 lb-ft @ 6000 rpm | 24.1 lb-ft / 32.6 Nm @ 7000 rpm | 36.3 Nm / 26.8 lb-ft @ 5500 rpm |
| Transmission: | 5 Speed | 5 Speed | 6 Speed | 5 Speed |
| Final Drive: | Chain | Chain | Chain | Chain |
| Front Suspension: | Telescopic forks | Telescopic forks | Telescopic forks | 35mm telescopic forks |
| Rear Suspension: | Dual shocks | Dual shock | Dual shocks | Dual shock, 5-way adjustable spring preload. |
| Front Brakes: | Single 245 mm disc | Single or dual 300mm disc 2 piston calipers (In Japan, the United States, and other markets the bike had a single disc, although the lugs needed to mount a second disc were in place. ) | Single 267mm disc 2 piston caliper | Single 200mm disc |
| Rear Brakes: | Drum | 180mm Drum | 178mm Drum | 150mm drum |
| Front Tyre: | 2.75-18-4PR | 3.50-19 | 3.00-18 | 3.50 S19 |
| Rear Tyre: | 3.25-18-4PR | 4.00-18 | 3.25-18 | 4.00 S18 |
| Dimensions: | Length 1945 mm / 76.5 in Width 755 mm / 29.7 in Height 980 mm / 38.5 in | Length 2205 mm / 86.8 in Width 909 mm / 35.8 in Height 1165 mm / 45.9 in | Length 2057.4mm / 81.0 in | Width 845 mm / 33.3 in Height 1155 mm / 45.5 in |
| Wheelbase: | 1240 mm / 48.8 in | 1455 mm / 57.3 in | 1320.8 mm / 52.0 in | 1405 mm / 55.3 in |
| Seat Height: | 780 mm / 30.7 in | 810 mm / 32 in | 800 mm / 31.5 in | 810 mm / 32 in |
| Wet Weight: | 140.0 kg / 308.6 lbs | 235 kg / 518 lbs | 155 kg / 342 lbs | 173 kg / 381.4 lbs |
| Fuel Capacity: | 11.5 Litres / 3.0 US gal | 14 Litres / 3.7 US gal | 15.9 Litres / 4.2 gal | 12 Litres / 3.1 US gal |