I was checking a new thermostat that I bought for my '66 Big twin by dropping it in a cup of boiling water and here is what I found. Initial temp reading with a barbeque meat thermometer in the cup of water measured at 197 degrees and was about 30 seconds after removing the cup of water from the microwave once it started boiling. The thermostat opened immediately. It stayed open until the thermometer measured 145 degrees. It appears that the thermostat is working properly but once I install it on my motor, no water comes out of the water discharge port when I run it in a barrel or on the flushing device in my driveway. If I remove the t-stat, water sprays out just fine and gets pretty hot after several minutes of idling. I'm hesitant to run the motor for an extended period with no water coming out of the discharge port since the powerhead seems very hot to the touch. Does this seem normal for these motors or should I just run it without the thermostat installed? Thanks for the help.
