I have problems with rust on my 3 months old fivespeeder.
Here, I will paint with a rust-stopping paint like Hammerite:
Here, too, I think, Hammerite will do the job:

But here, inside of the bolts of the chromed cylinderheads, whats the best way to get rid of the existing rust and to prevent further rusting:

Greetings from the salty coast of Bretagne, France
Achim