Known as the KZ650 here in the US and the Z650 everywhere else, this middleweight perfectly fit under the KZ900 in Kawasaki’s lineup. It was introduced in 1976 with three color choices: Candy Super Red, Candy Emerald Blue, or Candy Emerald Green. Introduced as a “large middleweight” alternative to the mighty Z1, the KZ650 delivered much of the big bike experience in a lighter, more manageable, and more affordable package. Designed under the guidance of Gyoichi “Ben” Inamura (the same mind behind the Z1), it struck a near perfect balance between performance, practicality, and value, earning its reputation as one of the most sensible Japanese standards of the era.
At the heart of the KZ650 is a 652cc air cooled inline four with dual overhead cams, a five speed gearbox, and a claimed 64 horsepower at 8,500 rpm, impressive figures for the mid 1970s. Kawasaki refined lessons learned from the Z1, opting for a smoother engine with improved durability, including under bucket shims and a robust plain bearing crankshaft. The steel double cradle frame used larger diameter tubing than its bigger sibling, resulting in a chassis that felt stable yet surprisingly agile.
On the road, the KZ650 exemplifies the best traits of the Universal Japanese Motorcycle: comfortable ergonomics, predictable handling, and an engine that’s happy cruising or being worked hard. It’s not a razor edged sport machine, but it rewards smooth inputs and thoughtful riding, making it engaging without ever feeling intimidating. As values of halo bikes like early CB750s and Z1s continue to climb, the KZ650 remains an accessible, usable classic. A motorcycle you can ride regularly, enjoy fully, and appreciate for exactly what it is: honest, durable, and endlessly likable.
This example is VIN: KZ650B513504. The seller acquired it from a private party on eBay.
During their ownership, the seller has covered Approximately 2000 miles. The odometer shows 22,950 miles.
Maintenance:
The seller states: “After I bought the bike it was completely disassembled and restored. Mechanical work included a top end rebuild, new clutch, and carburetors from a late model Ninja were installed. Fenders and tail light bracket were re-chromed, gauges refaced and new gauge buckets. OEM NOS seat, new chain, new handlebars and grips“.
Mechanical Issues:
The seller states: “The bike will need new tires, carburetors has been jetted for high altitude; running a little rich. I have original jets.”
Modifications:
Custom paint.
Wheels laced with new spokes, Vance and Hines exhaust.
Pod filters.
Inside of the tank:
It is riding on Dunlop D404 tires with outdated tire codes.
The sale includes 2 pairs of keys, one blank key, and a Clymer manual.
Cosmetic Blemishes: please see the album in the “Photos” tab for all known cosmetic blemishes. Here is a selection:
Currently located in Colorado Springs, Colorado, this Kawasaki is offered on a clean Texas title.
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