Originally Posted by JoeJr

I'm guessing you want it to look something like the one in the picture. You will need two things: 1. a spoked hand wheel, 2. a hand crank. You will want to decide if you want to try to get original Singer parts or if after market parts are acceptable.

The one in the picture has an original Singer spoked hand wheel; I think there are a several different spoked hand wheels though, and I do not know which is which. This one also has an after market hand crank, as an original Singer hand crank would be expensive but not so easy to find, and there may be different Singer hand cranks as well.

The second picture is a Singer 15-90 made into a hand crank with both the aftermarket wheel and crank, from Central Michigan Sewing Supplies. You can probably find them other places as well. The parts fit right on, although I used a very fine grit sandpaper (220) on the inside of the wheel hub before sliding it on, to smooth it out; the first time I tried one of these aftermarket wheels I did not do that and it didn't turn so well. Sanding was followed by wiping it out with a cloth then oil.

I sold the pictured Red Eye yesterday to a nice young lady who sews ball gowns and period costumes and wanted to move away from plastic machines; she bought 5 other machines also and is not officially a vintage sewing machine collector.

Originally Posted by leonf

Welcome aboard flip flop gardening. When you take off the disc balance ( hand) wheel) you will find this lobed washer under the stop motion ( or clutch) knob. make sure you keep track of which way it goes one. the way the two center prongs hit the main shaft. If you get it upside down , it can drive you crazy. example below


https://www.quiltingboard.com/members/leonf-u169597-albums19738-576744.html