If the handwheel is spoked then you can fit one. Do you want to use it as a hand crank or motor? You would need to buy the correct crank that fits the specific machine, as there are several different types, so it's best to let the supplier decide which is the correct one. (That way you don't end up having to keep it if you chose the wrong one.) There are videos on YT to help with a crank fitting. You can buy a modern foot controller. There is a postal service so could probably fix the motor or advise you. If you remove an original motor, keep it as it's part of the machine's history. Love my little 99K.