Dose water come out of the center of the prop ? And be in behind it when hooked up on a water hose ?

Water comes out with the exhaust through and around the propeller and also the telltale(pisser). If it's not coming out, shut off the engine and check the head/block temperature. May need a new water pump.

Thank you ! It's pissing a real good stream I just wanted to make I didn't have some wrong in the lower unit