Engine dies when blades are engaged or when clutch/brake is released

Craftsman riding mower 917.258581 with Kohler 16 hp engine dies when clutch/brake is released or when blades are engaged.

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0

crwdns2942205:01crwdne2942205:0:

Replaced all safety switches but still same problem

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

crwdns2934285:0crwdne2934285:0