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The 1970 Yamaha XS-1 650 and 1973 Yamaha TX750 represent two chapters in Yamaha's storied history.
The 1970 Yamaha XS-1 650 from Japan was powered by a 654cc OHV vertical twin producing 53hp at 7000rpm. Weighing 195.0kg (430 lbs) and with a seat height of 810mm, 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 1970 Yamaha XS-1 650 from Japan was powered by a 654cc OHV vertical twin producing 53hp at 7000rpm. Weighing 195.0kg (430 lbs) and with a seat height of 810mm, 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
| 1970 Yamaha XS-1 650 | 1973 Yamaha TX750 | |
|---|---|---|
| Displacement | 654 cc | 743 cc |
| Power | 53 hp | 63 hp |
| Torque | 53.0 Nm | 60.0 Nm |
| Cylinders | 2 | 2 |
| Top Speed | 170 km/h | 185 km/h |
| Quarter Mile | — | — |
| Dry Weight | 195.0 kg | 215.0 kg |
| Wet Weight | 212.0 kg | 232.0 kg |
| Seat Height | 810 mm | 810 mm |
| Wheelbase | 1430 mm | 1450 mm |
| Fuel Capacity | 14.0 L | 14.0 L |
| Gears | 5 -speed | 5 -speed |
The Verdict
Comparing these two Yamaha machines reveals the brand's evolution. The 1970 Yamaha XS-1 650 laid the groundwork with 53hp, while the later 1973 Yamaha TX750 pushed output to 63hp. From a collector's perspective, the 1970 Yamaha XS-1 650 holds the edge with a 7/10 rating. Either way, both are worthy additions to any Yamaha collection. Parts availability is good for the 1970 Yamaha XS-1 650 and moderate for the 1973 Yamaha TX750 — an important factor for any restoration project.
About the 1970 Yamaha XS-1 650
The 1970 1970 Yamaha XS-1 650 packs a 654cc OHV vertical twin engine with 53hp into a standard motorcycle package from Yamaha.
Full 1970 Yamaha XS-1 650 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 →