if you look at NGWclub.com (a site about older goldwings). In the shop talk section there is a "How-To" on painting. I put it together several years ago.
90% of the work is the prep work. If the prep is not PERFECT everything else will not be perfect!
Get good quality auto two-part paint. Get a respirator, at least a 5hp compressor, a quality gun, and make sure your paint area is WELL VENTILATED!
I have painted several motorcycles. It is fun a rewarding, but I have had to sand down some crappy jobs along the way.
One other thing, even high quality automotive paint will not stand up to dings like OEM.