Green’s Dictionary of Slang

(Aus.) a Kawasaki motorcycle.

1993		S. Geason Sharkbait 144: The dough, some clothes, a passport and a picture of Doggy with some moll on the back of an old Kwakka.
2004		J. Lambert Macquarie Aus. Sl. Dict. n.p.: quacker a derisive term for a Kawasaki bike.