A combination theory and lab course covering two stroke operating principles as well as complete service and troubleshooting of the snowmobile engine and its accessory systems. Discussion will cover engine diagnostic and overhaul procedures, as well as carburetion, lubrication systems, cooling systems, and other related items. This is a half-semester course. Prerequisite: PST 101 or completion of an NDSCS Automotive or Diesel AAS degree. (F, second half of semester)