The 1972 Kawasaki Z1 900 from Japan was powered by a 903cc DOHC inline-4 producing 82hp at 8500rpm. Weighing 230.0kg (507 lbs) and with a seat height of 820mm, it was aimed at standard riders.
The 1973 Kawasaki F9 350 by contrast offered 346cc of 2-stroke single power, delivering 36hp at 6500rpm. Tipping the scales at 140.0kg (309 lbs) with a top speed of 145km/h (90 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 Z1 900 | 1973 Kawasaki F9 350 | |
|---|---|---|
| Displacement | 903 cc | 346 cc |
| Power | 82 hp | 36 hp |
| Torque | 73.0 Nm | 35.0 Nm |
| Cylinders | 4 | 1 |
| Top Speed | 210 km/h | 145 km/h |
| Quarter Mile | — | — |
| Dry Weight | 230.0 kg | 140.0 kg |
| Wet Weight | 250.0 kg | 152.0 kg |
| Seat Height | 820 mm | 850 mm |
| Wheelbase | 1490 mm | 1380 mm |
| Fuel Capacity | 18.0 L | 11.0 L |
| Gears | 5 -speed | 5 -speed |
The Verdict
Comparing these two Kawasaki machines reveals the brand's evolution. The 1972 Kawasaki Z1 900 laid the groundwork with 82hp, while the later 1973 Kawasaki F9 350 pushed output to 36hp. From a collector's perspective, the 1972 Kawasaki Z1 900 holds the edge with a 9/10 rating. Either way, both are worthy additions to any Kawasaki collection. Parts availability is good for the 1972 Kawasaki Z1 900 and difficult for the 1973 Kawasaki F9 350 — an important factor for any restoration project.
About the 1972 Kawasaki Z1 900
The 1972 1972 Kawasaki Z1 900 is a 903cc four-cylinder standard motorcycle that became one of Kawasaki's most memorable motorcycles of the 1970s.
Full 1972 Kawasaki Z1 900 Profile →About the 1973 Kawasaki F9 350
The 1973 1973 Kawasaki F9 350 packs a 346cc 2-stroke single engine with 36hp into a dual-sport package from Kawasaki.
Full 1973 Kawasaki F9 350 Profile →