Whatever you do dont do it
I have an 89 fuji that i felt the same way about. I took the bike down to its frame and stripped all the original enamel paint off. that part was horrendous. lots of work to get it right. if you do this, then take it to a sandblasting company. what you spend will pay for itself in time and energy. If you do not heed my advice then do me one favor, throw that spray paint away, go to an automotive store and get automotive enamel. its much harder and will wear better. i finished my paint job about a month ago and i already have huge chunks taken out of the paint. I will admit that i was pretty satisfied with how the bike originally looked after the painting, but a few months in and it doesnt look so good. just some advice from a guy who did not heed the advice of others.
mckelvie1