Look at the 10th digit of the VIN
1983 KX500 JKAKXVA1-DA--XXXX KX500AE00XXXX
1984 KX500 JKAKXVA1-EA--0015 KX500AE0015XX
1985 KX500 JKAKXVA17EA00XXXX kx500BE000001-001800
1986 KX500 JKAKXVB18GA00XXXX kx500BE001801-004100
1987 KX500 JKAKXVC19HA00XXXX kx500BE004101-006600
1988 KX500 JKAKXVD17JA00XXXX kx500BE006601-008500
1989 KX500 JKAKXVE10KA00XXXX kx500BE008501-
1990 KX500 JKAKXVE12LA00XXXX kx500BE010701- 004000
1991 KX500 JKAKXVE12MA00XXXX KX500BE013001
1992 KX500 JKAKXVE12NA00XXXX KX500BE013001
1993 KX500 JKAKXVE12PA00XXXX KX500BE013001
1994 KX500 JKAKXVE12RA00XXXX KX500BE013001
1995 KX500 JKAKXVE12SA00XXXX KX500BE013001
1996 KX500 JKAKXVE12TA01XXXX KX500BE013001
1997 KX500 JKAKXVE--VA--XXXX KX500BE013001
1998 KX500 JKAKXVE--WA--XXXX KX500BE013001
1999 KX500 JKAKXVE--XA--XXXX KX500BE013001
2000 KX500 JKAKXVEC7YA02XXXX KX500BE013001
2001 KX500 JKAKXMLC91A02XXXX KX500BE013001
2002 KX500 JKAKX----2----XXXX KX500BE013001
2003 KX500 JKAKXVECO3AO3XXXX KX500BE013001
2004 KX500 JKAKX----4----XXXX KX500BE013001