Yamaha XV750 Episode: 2
Early monoshock Yamaha XV 750 (pre-Virago), '81-83.
Yamaha DT125 Episode: 3
Mostly an educated guess, Yamaha DT 125, the shade of blue is just about right, it predates the DT-Z Tenere by a couple of years so fitted with an aftermarket (Acerbis?) long-range tank?
Cagiva Elefant 650 Episode: 3