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The 1966 Kawasaki W1 650 and 1970 Yamaha XS-1 650 both compete in the standard segment, offering riders distinct interpretations of the formula.
The 1966 Kawasaki W1 650 from Japan was powered by a 624cc OHV vertical twin producing 50hp at 7000rpm. Weighing 200.0kg (441 lbs) and with a seat height of 800mm, it was aimed at standard riders.
The 1970 Yamaha XS-1 650 by contrast offered 654cc of OHV vertical twin power, delivering 53hp at 7000rpm. Tipping the scales at 195.0kg (430 lbs) with a top speed of 170km/h (106 mph), it offered a distinct riding experience. 1960s motorcycles capture the era of cultural revolution and racing heritage. Iconic models from this decade are among the most desirable classics.
The 1966 Kawasaki W1 650 from Japan was powered by a 624cc OHV vertical twin producing 50hp at 7000rpm. Weighing 200.0kg (441 lbs) and with a seat height of 800mm, it was aimed at standard riders.
The 1970 Yamaha XS-1 650 by contrast offered 654cc of OHV vertical twin power, delivering 53hp at 7000rpm. Tipping the scales at 195.0kg (430 lbs) with a top speed of 170km/h (106 mph), it offered a distinct riding experience. 1960s motorcycles capture the era of cultural revolution and racing heritage. Iconic models from this decade are among the most desirable classics.
Specifications Comparison
| 1966 Kawasaki W1 650 | 1970 Yamaha XS-1 650 | |
|---|---|---|
| Displacement | 624 cc | 654 cc |
| Power | 50 hp | 53 hp |
| Torque | 49.0 Nm | 53.0 Nm |
| Cylinders | 2 | 2 |
| Top Speed | 170 km/h | 170 km/h |
| Quarter Mile | — | — |
| Dry Weight | 200.0 kg | 195.0 kg |
| Wet Weight | 215.0 kg | 212.0 kg |
| Seat Height | 800 mm | 810 mm |
| Wheelbase | 1420 mm | 1430 mm |
| Fuel Capacity | 15.0 L | 14.0 L |
| Gears | 4 -speed | 5 -speed |
The Verdict
For pure standard performance, the 1970 Yamaha XS-1 650 has the edge thanks to more power (53hp vs 50hp) and lower weight. The 1966 Kawasaki W1 650, however, excels when all-round versatility and everyday riding is the priority. Parts availability is moderate for the 1966 Kawasaki W1 650 and good for the 1970 Yamaha XS-1 650 — an important factor for any restoration project.
About the 1966 Kawasaki W1 650
Kawasaki released the 1966 Kawasaki W1 650 in 1966 with a 624cc OHV vertical twin powerplant making 50hp — a definitive standard motorcycle.
Full 1966 Kawasaki W1 650 Profile →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 →