Kawasaki GPZ305 was a 306cc twin cylinder air-cooled

Air-cooled engine

Air-cooled engines rely on the circulation of air directly over hot parts of the engine to cool them.-Introduction:Most modern internal combustion engines are cooled by a closed circuit carrying liquid coolant through channels in the engine block and cylinder head, where the coolant absorbs heat,...

 SOHC four-stroke motorcycle

Motorcycle

A motorcycle is a single-track, two-wheeled motor vehicle. Motorcycles vary considerably depending on the task for which they are designed, such as long distance travel, navigating congested urban traffic, cruising, sport and racing, or off-road conditions.Motorcycles are one of the most...

, produced from 1983 until 1994 by Kawasaki

Kawasaki Heavy Industries

is an international corporation based in Japan. It has headquarters in both Chūō-ku, Kobe and Minato, Tokyo.The company is named after its founder Shōzō Kawasaki and has no connection with the city of Kawasaki, Kanagawa....

 in Japan

Japan

Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

. The model evolved from the earlier Z250 model and used an overbored (61mm x 52.4mm) version of the 249cc engine first produced in 1979.Kawasaki gave this model the 'Gpz nomemclature to add to its expanding aircooled sports bike range, and was marketed as a sports machine. It originally was offered with chain final drive but in 1983 it gained the new kevlar belt final drive first seen on Kawasaki's American styled cruisers.

It was available with a 250cc engine as the Kawasaki Scorpion, but came in a different colour scheme.