Decided to clean all the gunk off my engine the other day so I grabbed a handy can of carb cleaner and had at it. Cleaned the gunk off really well but after about a minute anywhere I'd sprayed with it the paint started to wrinkle up. Let her sit for a few hours hoping the paint would lay back down and it did but I think a better alternative would be to use brake cleaner.
Carb spray is best left to cleaning bare unpainted parts off the bike.
Brake cleaner would be a much better replacement for carb cleaner for doing leak tests and general motor cleaning plus it's cheaper just keep it away form anything plastic.