I noticed that I can turn the 4 engine mount bolts on the transom. There is no gap and the engine appears to be tight to transom, but.. is there a specific torque they need to be set too?

2005 Mercury 225 Optimax, ChampioN 201

UPDATE: I used that search feature thingy and found 50lbs of torque to be the common response. If different please chime in..