I changed out my water pump and thermostat on my 2008 yamaha 25 2-stroke, and now I have no water flow discharging from the motor. I know I'm getting water to the thermostat, I just don't know if I'm getting water through the thermostat or if it's getting blocked somewhere else. I have no clue what the flow path looks like downstream of the thermostat...is there anything I can check to find the problem? Is it common to install a new thermostat and it just not lift or let flow by for some reason? I ordered the part from boats.net and just dropped it in the slot and bolted the cover back on. Thanks for the help!