I just finished restoring a heavily worn, non-functional SF. Let's see some pictures of your starting point. I would say get it working properly first so you know you've got a functional machine before you start doing cosmetic stuff.

SF didn't originally have an on/off switch. Has yours been retrofitted with one? Either way, I'm pretty sure the wiring on your power cord is incorrect as well as partially disconnected. Your cord has definitely been replaced. This is a good thing - the original cord probably gave up the ghost years ago. Check your connections. I believe hot should be connected to the transformer on the bottom lug towards the rear of the cabinet. The neutral should be connected to the brown wire that appears to be the one hanging loose in mid-air in your photo. The neutral wires should be connected to a lug screwed to the cabinet bottom. You could/should attach the unused green ground wire to a lug on the transformer so that you could someday extend grounding to other currently unprotected parts of the machine (i.e. legs, flipper buttons, coin door, etc).

Your connections look backwards. Check it carefully. Black is usually hot. White is usually neutral. Have an electrician help you with the power if you are at all unclear. Always unplug the machine when working on it. Here is what mine looks like.P1248646 (resized).JPG

San Francisco is a fun and unique game well worth the effort to get running again. Good luck. Let me know if you want more help.

It does. https://pinside.com/pinball/machine/san-francisco

It is a fun, unusual 2 player. I just sold a deeply restored example (which won a best restoration award at "Pin-a-Lodi" last year). Maybe you played it there?

Have you cleaned and lubed your score reels and sticky stepper units? If it hasn't been done in awhile you've probably got old gummed up grease and dust causing things to bind, especially if it isn't been getting played regularly. (Gotta keep those old timers active or their joints seize up - just like people!) Of course, check all the switches associated with the buggers giving you trouble. Clean, polish and adjust the switches when you are degumming stuff.