SOME 1982 ATC'S THAT NEVER WERE CONVERTED DUE TO THE HONDA RECALL,, YOU MAY NEED TO MODIFY YOUR AIR FILTER SCREEN. E-MAIL JACK IF NEEDED, IN TECH. NO LONGER AVAILABLE FROM DRATV @ AIR FILTER ARMORTECH 2-STAGE HONDA (1979_to_1982) ATC110 185S 200 2-STAGE 1/19M (90A) 90A