Hi mate im a painter and dec/spray techicain , i did mine recently this is what i did Stripped the frame down Sanded all the paint and any undercoat that is on the frame the sanded with a wet and dry pad not hard though this s jus to remove paint dust and sh!t next get tack rag and wipe the whole frame ths will remove all the dirt and grime and what not next find a inclosed enviroment (so wind doesn't dust and so on,on to the wet paint) then get a oxidised metal primer and spray the frame leaving 15mins between each coat and giving a light sand with your wety and dry pad when your have built up the primer leave the paint to cure for 24-48hrs next choose the paint you want and repeat the method again with the chosen paint, finally when you apply the last coat 15mins after apply the lacquer be careful as this makes the paint very soft and sticky apply up to 3 coats of lacquer and allow to cure for 7days before any out work is carried out (lacquer is for a shiny finish but also harden the paint agaist chips and scratchs) i know this sounds like a long process but believe me spraying takes time for the best finish, REMEMBER - Build the coats up dont try it on all at once otherwise this will cause runs, and the so called orange peel effect which is not a good look, hope this helps