1978 CX500 "The Grub", 1983 GL650I "Nimbus"
You might have some luck here:
Vintage Connections - Wiring supplies for vintage motorcycles. OEM Style Japanese Motorcycle Wiring Terminals and Connectors for Yamaha, Kawasaki, Suzuki and Honda Motorcycles. Bullet terminals, spade terminals, nylon connectors, wires, tubing, shrink wrap, specialty tape, and more.