Told the church I'd take a look at their mower. Cub Cadet 3660 (predecessor to the M60 tank?). Presenting problem was mower shredding the deck drive belt. However, it will not crank. I can hear a click with key turn. Not sure if it's starter solenoid or carb solenoid. Not even sure if it has one on the carb. New starter solenoid. Battery fully charged. Both paddle switches and parking brake switch appear to have continuity. My next guess is checking PTO switch and key switch. Am I on the right track? Am I missing something? I am Youtube trained so speak slowly. Any help would be appreciated.