You could touch up the frame with a brush and a small tin of black paint it's better than spraying for getting into those tight hard to spray places I recently painted my Yamaha SR500 frame I actually had a couple of attempts before I was happy with it I paint striped it then blasted it with a small sand blasting gun and before spraying it knowing there would be places that would be difficult to reach when spraying I did those place with a brush first I laid the paint on too heavily and it had runs and it curdled up a bit so to save a lot of time restriping it I took it to a local blaster and had him remove my first attempt And he suggested the same thing I'd done paint the difficult parts with a brush before spraying it I made a painting stand from an old exercise bike I welded up a bracket that mounted to the exercise bike's seat post and ran threaded rod through the front lower engine mounting holes in the frame and through my bracket and I was able to swing the back of the frame up to be close to vertical and painted under the frame and while the epoxy enamel paint was still wet swung it back down horizontal to do the top, it worked well Brush painting has it's place it will pump paint into places spraying won't reach I've got Hodaka dirt bikes with cast steel cylinders and always paint them with a brush you can get right in between the fins with the right brush better than you ever could trying to spray them and you don't see brush marks on the cast metal
You could touch up the frame with a brush and a small tin of black paint it's better than spraying for getting into those tight hard to spray places
I recently painted my Yamaha SR500 frame I actually had a couple of attempts before I was happy with it
I paint striped it then blasted it with a small sand blasting gun and before spraying it knowing there would be places that would be difficult to reach when spraying I did those place with a brush first
I laid the paint on too heavily and it had runs and it curdled up a bit so to save a lot of time restriping it I took it to a local blaster and had him remove my first attempt
And he suggested the same thing I'd done paint the difficult parts with a brush before spraying it
I made a painting stand from an old exercise bike I welded up a bracket that mounted to the exercise bike's seat post and ran threaded rod through the front lower engine mounting holes in the frame and through my bracket and I was able to swing the back of the frame up to be close to vertical and painted under the frame and while the epoxy enamel paint was still wet swung it back down horizontal to do the top, it worked well
Brush painting has it's place it will pump paint into places spraying won't reach
I've got Hodaka dirt bikes with cast steel cylinders and always paint them with a brush you can get right in between the fins with the right brush better than you ever could trying to spray them and you don't see brush marks on the cast metal