30 HP serial number 1271884-1448139 30 Jet serial number C1592000-G589999 35 HP 1963-65 serial number 1571114-1960826 35 HP 1966-69 serial number 1960827-6445652 35 HP 1984-up serial number 6445653-up 40 HP 1970-75 serial number 2874704-4362214 40 HP 1976-77 serial number 4362215-4860102 40 HP 2 cyl 1978-96 serial number 4860103-6445653 40 HP 4 cyl 1989 serial number C159200-up 45 HP 1986-89 serial number A914859-up * 50 HP 1963-68 serial number 1521914-2514918 50 HP 1969-75 serial number 2514919-4357639 50 HP 1976-77 serial number 4357640-4962055 50 HP 4 cyl 1978-85 serial number 4962056-A914858 50 HP 3 cyl 1986-90 serial number A912478-D000749 60 HP 3 cyl 1984-90 serial number 6428681-D000749 65 HP 3 cyl 1972-75 serial number 3293184-4382056 65 HP 3 cyl 1976-up serial number 4382057-up 70 HP 3 cyl 1977-78 serial number 4571652-4977156 70 HP 1979-86 serial number 4977157-B110053