Honda CBR600F2 Episode: 1.03
Suzuki GSX Episode: 1.03
Kawasaki GPX 750 Its Suzuki GSX-F, 600 or 750. Year 1987 - ...
That isn't a Kawasaki!. Georg34 is right, that bike is a Suzuki GSX600F or a GSX750F (name at USA: Katana 600, Katana 750).
Harley-Davidson Shovelhead Episode: 1.08
Honda Fourtrax Episode: 1.10
this could be a late 80s Honda Fourtrax http://www.atvriders.com/atvmodels/honda-history-1987-foreman-4x4-atv.html
seems this is SOLVED those vents above front fender seem to fit !!