new to saltwater and was going to use the flushing adapter that came with my Mercury 125 saltwater 2 stroke outboard. I have read that you don't want to put the hose on full pressure because it can cause damage to motor. Do I flush with motor up out of water or do it before I trim it up out of the water? Does water come out of the telltale? How do I know if I'm using enough pressure? Is there anything I should look for while doing this operation. Thanks for any help,
Tom
Tom