I was thinking of re-painting my kiteboard. I bought it used and it's kind of banged up so I thought I'd paint it over.

Anyone got a link to a good tutorial video on how to go about doing this?

Neon green or yellow. It is so visible.

it doesn't matter. just put a layer of resin over top and you can use what ever you like. I used water based test pots for one of my repaints

If you put layer of epoxy resin on top then your board will yellow real quick. Maybe polyester resin might do ok on the top. Epoxy based resin.needs to have a protective top coat like a clear marine varnish or even an automotive clear coat.

I built a light wind board from plywood laminates and put 3 coats of marine paint on it, thinned the first coat. Works the very best, still going. I can't remember what I paid, maybe 15bucks for a quart, got it at the local hardware store.

It's bright orange... can't miss it

so, did you still put a clear coat on it? Did you put any wax on it?

any pointers you could offer as to prepping , or technique?
Got any photos of the board?

I've been looking around , but I haven't found any good tutorials on how to paint a board so it will last in the salt water. I might look in some boating forums.

Automotive paint/clearcoat is what they use to paint boats, makes the boat look new for years. Handpainting straight Fast dry colored poly, have the hardware store tint your Poly for you, Any epoxy/alkoid paint.

This thread might get more response if you specify what kind of board are we talking about!
What kind of material is it made of, at least the surface you are going to paint.
After all, the procedure pretty much depends on board surface. Second it would be good to know what kind of finish are you aiming to achieve. Painting it completely, paint graphics + clear coat or just clearcoat.