OKThe paperback by Clymer "Chain Saw" 10th edition Primedia 1999 . 612 pp, Stihl section shows models 024AV with two additional suffix alphas, e.g., AVE, AVEQ. AVSEQ on and on. Look for more sffix alphas and advise. The blow ups are small , but better than nothing. If you can screen up on amazon sometimes you can page into the book. Otherwise advise.