We have a snapper rider 5 speed disc 12 hp b&s got the engine running good. Now I can't get it to move. Clutch works, 5 speed shifter, deck drops, blades ingauge. Any ideas? Cause I got 5 other mowers and 2 weedeaters I need to get running.

Check to see if there are any chain or belt driven links to the transaxle that may be off, otherwise it may be in the transaxle itself. Hope this helps.

Raise the rear end and see if when you turn one wheel by hand the other turns also.