ATK 1992 brochure, 604 CC (cross country, electric start, lights; recorded): Mikuni TM 38 mm with optional EFI throttle body, 4.2 gal, 267 lb dry. 604 Standard and MX: 248 lb (MX 2.3 gal). Lineup: 604 STD, MX, ES, ES MX, ES CC.