HA0 say it's for the 250es, so you have the right one
1986 ATC500X
1985 ATC250SX
1985 ATC200X
1985 ATC250R
1986 ATC250R
1984 ATC250R
1981 ATC70
1984 ATC70
1985 ATC70
Custom built ATC70 / 250R laydwon swap
1986 ATC250SX FATCAT
i'm interested in why the difference in the # ci93 as well. i have 10 1985 cdi's with ci67 on them. thanks