Sep 29, 2009 1983 Yamaha Seca 750. Discussion in 'Road Warriors' started by SaoirseGlen, May 22, 2009. Page 1 of 2 1 2 Next SaoirseGlen, May it was part of the touring package specific to the 750 Seca as it fits the headlightdriving light assembly and is a more compact unit since it turns with the forkshandlebars instead of sticking way out on a