Advice requested: wring an air compressor motor

[henny_316]

I purchased a 60 gallon air compressor Kobalt 60-Gallon Cast Iron Oil Lubricated Air Compressor with Heavy Duty Induction Motor
from Lowes. It didn't include the power cable. I purchased 3/C 12 awg SJ00W and a 20A/250V straight blade plug (I know this says 125V, I actually have the 250V). Where do I hook up the black, green, and white cables to inside the motor and the plug? Here are pictures I took and drew. The posts next to #3 are the only open posts that I see.

Thanks for your help!

Edit *The yellow wire off of post 4 isn't yellow, it's white.*