I have a 2005 Goldwing 1800A and would like to know if there is a need for valve adjustments after 24,000 miles? I was told by a service mechanic that Honda requires a valve adjustment after 24,000 miles. I never heard of this and had a 1989 Goldwing that never had a valve adjustment that I know of. Sure would appreciate some answers on this before I spend the money.