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Edition:
Kawasaki KH 400 Three Cylinder - [1978]
This edition of the Kawasaki KH 400 Three Cylinder is the 5 speed | Manual version and was first brought out in 1978. This was at around the same time as the introduction of the 1978 Yamaha XS 750 E and the 1978 Yamaha XS 750 Special.This particular Kawasaki KH 400 has a 400cc Air cooled, Four stroke, Wankel Petrol powerplant with 3 cylinders and Carburettor.
An alternative Wankel engine, Standard style motorbike includes the Yamaha XSR 700 Twin - [2020]
The 1978 KH 400 shares its Wankel engine and Standard style configuration with the likes of the 2020 Yamaha XSR 700 Twin and the 2018 Yamaha XSR 700 Twin. Alternatively, if you're looking for other bikes which share the KH 400's Standard style with a similar size of engine then how about the 1997 Suzuki GW 400 Inazuma | 1997cc.1988 Suzuki TV 250 Wolf | 1988cc.
Weighing in at 0 kgs (0 lbs) this makes the Kawasaki KH 400 Three Cylinder in the same weight category as the 2025 Yamaha Tracer 9 GT+ or the 2025 Yamaha Tracer 9 GT, give or take 50kg.
The 1978 Kawasaki KH 400 shares the same bhp with the Honda X-ADV 745 - [2025]
In terms of power the 400cc 21 valve Wankel 3 cylinder engine produces 38 bhp (28 kW) @ 7000 rpm similar to the 2025 Honda X-ADV 745 [57.8 bhp (43 kW) @ 6750 rpm] or the 2025 Yamaha WR 250 F [36.1 bhp (26 kW) @ 12000 rpm].
The Piston Port Four stroke unit throws out torque of 28.2 lb-ft (38.2 Nm) @ 6500 rpm placing it alongside motorbikes of similar performance figures such as the 2025 Yamaha Tenere 700 [50.2 lb-ft (68.0 Nm) @ 6500 rpm] and the 2025 Suzuki SV 650 ABS [47.2 lb-ft (63.9 Nm) @ 8100 rpm].
If one combines the weight with power or torque performance for the Kawasaki KH 400 you can get a better idea of it's real world performance.
The 1971 Yamaha R5 B 350 has similar Bhp Per Ton stats as the 1978 Kawasaki KH 400 Three Cylinder.
The 1978 Kawasaki KH 400 Three Cylinder has a Power to weight ratio of 208.7 bhp per ton and 154.9 lb-ft per ton. Bhp Per Ton figures of the 1978 KH 400 competing with the 1971 Yamaha R5 B 350 [233.7 bhp\ton] and the 1970 Yamaha R5 A 350 [233.7 bhp\ton].
If you agree with the late great Carroll Shelby, then arguably an even better indicator of potential performance is Torque. Factor weight into the equation and you end up with - Torque per ton, with the Kawasaki KH 400 generating around 154.9 lb-ft per ton. If you're curious as to what other motorbikes have as much torque to weight then look no further than the 1968 Norton Mercury 650 [179.8 lb-ft per ton] and the 1968 Norton 650 SS [179.8 lb-ft per ton].
With a 0-60mph time of 17.7 secs or a 0-100km/h (0-62mph) of 18.1 secs, this makes the Kawasaki KH 400 Three Cylinder similar in acceleration to the 2017 Honda NC 750 D Integra (17.7 secs) and the 2014 Honda NC 750 D Integra (17.7 secs). This Kawasaki KH 400 Three Cylinder also competes in terms of 0-60 mph and 0-100km/h with the 2018 Honda CB 250 R Neo Sports Cafe (0.0 secs) and the 2020 Norton Superlight SS (0.4 secs).
Quarter Mile time is a close race between the 1978 Kawasaki KH 400 Three Cylinder and the 1991 Honda CRM 250 R MKII
When talking about the performance of the 1978 Kawasaki KH 400 Three Cylinder on the drag strip it can reach a quarter mile in an estimated 0 secs @ 0 mph. Bikes with a similar performance down the quarter mile can be found in the 1991 Honda CRM 250 R MKII (0 secs) and the 2001 Honda CMX 250 C Rebel (0 secs).
The 1978 version of the Kawasaki KH 400 Three Cylinder has a maximum speed of 0mph.
Top Speed of the 1978 KH 400 equals the 2013 Honda CHF 50 Metropolitan
If maxing out your bike on the AutoBahn is your thing and you're wondering what's faster at the top end than the 1978 Kawasaki KH 400 Three Cylinder then how about a 2013 Honda CHF 50 Metropolitan (35 mph) and the 2002 Honda CHF 50 Metropolitan (35 mph).
