No, alot of chemicals will break down the coil wire coating if not the bobbins. Get a little bit of napatha in a cup and dip a rag or q-tip in it then rub off the rust with the rag/q-tip. Try not to get any in the pick up. Just on the caps.
Where can I acquire some napatha? Will a normal spray to prevent rust work? Also, does napatha remove the rust? I'm sorry if that's a lot of questions, but this caught me by surprise.
Napatha is standard lighter fliud. Just don't spray anything at the pickup. Napatha will help "break it up" but you rubbing with the rag will remove the rust.
This happened to me with my Hotrails. Some people just have really acidic sweat. Someone recommended I put clear nailpolish over the rails to prevent corrosion, and that worked... for a bit, anyway.