VS
The 1972 Kawasaki H2 Mach IV and 1980 Yamaha XJ650 both compete in the standard segment, offering riders distinct interpretations of the formula.
The 1972 Kawasaki H2 Mach IV from Japan was powered by a 748cc 2-stroke triple producing 74hp at 6800rpm. Weighing 192.0kg (423 lbs) and with a seat height of 810mm, it was aimed at standard riders.
The 1980 Yamaha XJ650 by contrast offered 653cc of DOHC inline-4 power, delivering 71hp at 9000rpm. Tipping the scales at 215.0kg (474 lbs) with a top speed of 190km/h (118 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 Kawasaki H2 Mach IV from Japan was powered by a 748cc 2-stroke triple producing 74hp at 6800rpm. Weighing 192.0kg (423 lbs) and with a seat height of 810mm, it was aimed at standard riders.
The 1980 Yamaha XJ650 by contrast offered 653cc of DOHC inline-4 power, delivering 71hp at 9000rpm. Tipping the scales at 215.0kg (474 lbs) with a top speed of 190km/h (118 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 Kawasaki H2 Mach IV | 1980 Yamaha XJ650 | |
|---|---|---|
| Displacement | 748 cc | 653 cc |
| Power | 74 hp | 71 hp |
| Torque | 68.0 Nm | 56.0 Nm |
| Cylinders | 3 | 4 |
| Top Speed | 210 km/h | 190 km/h |
| Quarter Mile | — | — |
| Dry Weight | 192.0 kg | 215.0 kg |
| Wet Weight | 210.0 kg | 232.0 kg |
| Seat Height | 810 mm | 800 mm |
| Wheelbase | 1420 mm | 1440 mm |
| Fuel Capacity | 16.0 L | 16.0 L |
| Gears | 5 -speed | 5 -speed |
The Verdict
For pure standard performance, the 1972 Kawasaki H2 Mach IV has the edge thanks to more power (74hp vs 71hp) and a higher top speed and lower weight. The 1980 Yamaha XJ650, however, excels when all-round versatility and everyday riding is the priority. For collectors, the 1972 Kawasaki H2 Mach IV commands more attention with a 9/10 collectibility rating. Parts availability is moderate for the 1972 Kawasaki H2 Mach IV and good for the 1980 Yamaha XJ650 — an important factor for any restoration project.
About the 1972 Kawasaki H2 Mach IV
A standard motorcycle from 1972, the 1972 Kawasaki H2 Mach IV delivers 74hp from its 748cc 2-stroke triple engine.
Full 1972 Kawasaki H2 Mach IV Profile →About the 1980 Yamaha XJ650
Born in 1980, the 1980 Yamaha XJ650 is a 653cc four-cylinder standard motorcycle producing 71hp from Yamaha.
Full 1980 Yamaha XJ650 Profile →