Already checked, I don't have one but you may be able to find one on eBay...
Or, you can buy a new one for about 28 bucks here:
http://www.partzilla.com/parts/detail/kawasaki/KP-44063-1060.htmlP/N 44063-1060
Fits the following:
1993 KX125-J2 KX125 FRONT FORK
1993 KX250-J2 KX250 FRONT FORK
1994 KX125-K1 KX125 FRONT FORK
1994 KX250-K1 KX250 FRONT FORK
1994 KX500-E6 KX500 FRONT FORK (KX500-E6-E7)
1995 KX125-K2 KX125 FRONT FORK
1995 KX250-K2 KX250 FRONT FORK
1995 KX500-E7 KX500 FRONT FORK (KX500-E6-E7)
1996 KX125-K3 KX125 FRONT FORK
1996 KX250-K3 KX250 FRONT FORK
1996 KX500-E8 KX500 FRONT FORK (KX500-E8)
1997 KX125-K4 KX125 FRONT FORK
1997 KX250-K4 KX250 FRONT FORK
1997 KX500-E9 KX500 FRONT FORK
1998 KX125-K5 KX125 FRONT FORK
1998 KX250-K5 KX250 FRONT FORK
1998 KX500-E10 KX500 FRONT FORK
1999 KX500-E11 KX500 FRONT FORK
2000 KX500-E12 KX500 FRONT FORK
2001 KX500-E13 KX500 FRONT FORK
2002 KX500-E14 KX500 FRONT FORK
2003 KX500-E15 KX500 FRONT FORK
2004 KX500-E16 KX500 FRONT FORK