Paul,
Looks like a 2 gallon carb cleaner job. Don't forget to change the check valve for the accelerator pump. It's at the base of the pump chamber on the bowl side.
Mine looked good but were bad. I changed them and the pumps work great now. Btw, my engines fired right up from a long winter's nap as well as some intrusive work. No leaks. I'll add some pics to the other post I started.
Geo.