use nitromors (or similar) paint stripper and give it **** good wash before you spray it
Degrease it using thinners
get the paint you want.
Mask up the bits you don’t want painted (low tack masking tape is best)
Leave the frame in the house before you paint it for a while so that it’s warm and put the paint aerosols in warm water before you use them
two coats of etch primer (get the right colour primer for your top coat paint) then a couple of coats of top coat
Thin coats are better than thick (it’ll run if it’s too thick)
then if you want to a couple of coats of lacquer
Take off the masking tape
Leave it for a couple of days to dry and then put your decals on
Assemble the bike
Go for a ride
Have fun :D