Hi my name is Bud, I'm new to the forum.I purchase a used 2006 Mecury 25 HP four stroke. I cannot get any water out of the cooling hole. I hooked up the hose & cups like I did with other motors, but no water. The guy that I bought it from said it worked for him, but his mechanic said you have to run it for 3 to 4 minutes because of the thermostat. That seems scary to run the motor for that long without water. Thanks Please Help Bud