Step 1: Prep
Sand the board (when I took the photos, I did not sand it, so I do not have any photos for this). This will help the paint stick to the board, and if your board is chrome/shiny like mine was, it's a must. You normally use 400 grit sandpaper for this. Sand the paint/design/chrome off, and your good to go.
When your finished, wash the board with some soap/water, or even better, grease/wax remover. This will remove any grease or oil on the board. When the board is clean and dried, move on to step 2.
Step 2: Primer
You basically wanna do 3-5 light coats. Let me say that again, 3-5 light coats. Doing heavy coats calls for failure. Take your time to get professional results. Depending on the weather, wait 10-20 minutes between coats of primer. It should be completely dry.
If you want, in-between coats you can sand it lightly with 800-1000 grit sandpaper to make it nice and smooth.
When your finished, let the board sit for a few hours (or overnight, depending on the time of the day) before painting your finish color.