Free-up your sticky choke and hand throttle cables. It took about 6 hours to turn some frozen cables to like new this last weekend. Easier than pulling the dash apart, me thinks.
- Disconnect the cables from the carb.
- Take a 10-12 inch long piece of 3/16 ID vacuum hose
- Push it over the cable end, ½ inch or so.
- Fill the vacuum hose with penetrating oil.
- Elevate and secure the open end of the hose.
- Open a beer, check the cables occasionally.
- Fill up every couple of hours until done.
- Reconnect
- Wipe off any excess from dash

I lucked out soaking my frozen parking brake cable in place without removing. I just sprayed the cable and worked it while simultaneously performing step six 