The forty-two Ks125 1974 Usa Canada Air Cleaner/muffler ('76-'79) component parts are all listed in this schematic.
Some items from this specific schematic: Air Cleaner Element, Washer-spring,6mm, Washer-spring,8mm, Washer,6.2x11x1.5.
The Ks125 1974 Usa Canada Air Cleaner/muffler ('76-'79) consists of forty-two pieces with the Muffler Assy being the most expensive.