Dai

Life time member

Number of posts : 4768
Word of advice for anyone replacing these pins and soldering on new wires: the plastic will heat up and deform very quickly.
Don't use anything less than a 25 watt or greater than 40 watt soldering iron
Make sure that the pin you are soldering to is absolutely clean
Tin it with solder as quickly as possible and allow to go cold (yes! let the heat out of the plastic)
Tin the end of the wire
When forming the joint, apply just enough heat to melt the solder properly and then get the soldering iron out of there. Don't apply any pressure to the pin with the soldering iron.
The original pins are actually slightly barbed. Having looked at the angles on some of the wires in a number of K-series switches, I suspect that the wires are soldered to the pin and then the pin (complete with wire) is punched into the plastic.
__________________________________________________
1983 K100 upgraded to K100RS spec, 1987 K100RT
Others...
1978 Moto Guzzi 850-T3, 1979 Moto Guzzi 850-T3 California,1993 Moto Guzzi 1100ie California
2020 Royal Enfield Bullet 500