Kawasaki W650 and W800
From 1999 until 2007 Kawasaki built the W650 retro style motorcycle, which has a 676cc overhead camshaft, unit construction engine. Since 2011 it has built a successor model, the W800, which has an enlarged, 773cc version of the same engine. The W650 and W800 are unconnected with the W1, W2 or W3 other than by being parallel twins with a 360° crankshaft and a model code that begins with W.
Read more about this topic: Kawasaki W Series