As an explanation to those who feel unsecure about the tell tale 'pisser' if it does not show immediately - especially after some time of sitting still or having the boat out of the water:<br /><br />On some motors the hose that leads the water to the tell tale outlet is connected to the uppermost water jacket on the motor and will not show any tale until all the motor's water jacket is full. <br /><br />If water has been drained from the motor after some time of sitting still or having the boat out of the water, it will take some time (seconds - not minutes) for the impeller to fill up the system.<br />The impeller runs in water (which is extremely important) all the time anyway.<br /><br />This way you will only get the tale when the cooling systems copes with filling the whole jacket and producing a pressure. This pressure should make the tale strong at any time until the motor is turned off.<br /><br />Systems that incorporate thermostats may act slightly different until the t-stat opens but the principle is the same.<br /><br />The length of the internal connecting hose also explains why water runs out after turning the motor off - it simply empties the cavity above the connection on the jacket (if any) and the hose itself.<br /><br />This ofcourse only applies to designs with a high mount tell tale connection. Check your motors layout before accepting hesitation on the tell tale.
