This SAE Recommended Practice applies to personal watercraft as defined in 2.2. With the exception of Sections 4 and 5, this document does not apply to electronic circuits having a current flow of less than one ampere; conductors which are totally inside an equipment housing; resistance conductors that control circuits amperage; high-voltage secondary conductors and terminations that are in ignition systems; pigtails of less than 180 mm of exposed length; and cranking motor conductors.