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The 1972 Yamaha DS7 250 and 1973 Yamaha TX750 represent two chapters in Yamaha's storied history.
The 1972 Yamaha DS7 250 from Japan was powered by a 247cc 2-stroke twin producing 30hp at 7500rpm. Weighing 135.0kg (298 lbs) and with a seat height of 780mm, it was aimed at standard riders.
The 1973 Yamaha TX750 by contrast offered 743cc of DOHC twin power, delivering 63hp at 7500rpm. Tipping the scales at 215.0kg (474 lbs) with a top speed of 185km/h (115 mph), it offered a distinct riding experience. 1970s bikes from the Japanese superbike revolution are increasingly sought after. Clean, original examples have seen significant value appreciation.
The 1972 Yamaha DS7 250 from Japan was powered by a 247cc 2-stroke twin producing 30hp at 7500rpm. Weighing 135.0kg (298 lbs) and with a seat height of 780mm, it was aimed at standard riders.
The 1973 Yamaha TX750 by contrast offered 743cc of DOHC twin power, delivering 63hp at 7500rpm. Tipping the scales at 215.0kg (474 lbs) with a top speed of 185km/h (115 mph), it offered a distinct riding experience. 1970s bikes from the Japanese superbike revolution are increasingly sought after. Clean, original examples have seen significant value appreciation.
Specifications Comparison
| 1972 Yamaha DS7 250 | 1973 Yamaha TX750 | |
|---|---|---|
| Displacement | 247 cc | 743 cc |
| Power | 30 hp | 63 hp |
| Torque | 24.0 Nm | 60.0 Nm |
| Cylinders | 2 | 2 |
| Top Speed | 145 km/h | 185 km/h |
| Quarter Mile | — | — |
| Dry Weight | 135.0 kg | 215.0 kg |
| Wet Weight | 147.0 kg | 232.0 kg |
| Seat Height | 780 mm | 810 mm |
| Wheelbase | 1310 mm | 1450 mm |
| Fuel Capacity | 12.0 L | 14.0 L |
| Gears | 5 -speed | 5 -speed |
The Verdict
Comparing these two Yamaha machines reveals the brand's evolution. The 1972 Yamaha DS7 250 laid the groundwork with 30hp, while the later 1973 Yamaha TX750 pushed output to 63hp. From a collector's perspective, the 1973 Yamaha TX750 holds the edge with a 5/10 rating. Either way, both are worthy additions to any Yamaha collection.
About the 1972 Yamaha DS7 250
A standard motorcycle from 1972, the 1972 Yamaha DS7 250 delivers 30hp from its 247cc 2-stroke twin engine.
Full 1972 Yamaha DS7 250 Profile →About the 1973 Yamaha TX750
The 1973 1973 Yamaha TX750 packs a 743cc DOHC twin engine with 63hp into a standard motorcycle package from Yamaha.
Full 1973 Yamaha TX750 Profile →