I have an 06 stx-15f w/ 29hrs on it and have never had any probs w/ it since i bought it last yr brand new. Today after leaving the beach i went to clean it and flush the motor like i always do and i noticed not much water was coming out the rear while flushing. A sec later i heard this beeping noise and looked at the dash and the temp light was on and heat was flashing. I immediately turned it off and continued to clean the bay and exterior. I tried once again to flush and this time no water was comin out the rear and the beeping came back really quick. Has anyone else had this prob or know what could cause this. Thanks

 

You have a low flow issue from sediment clogging a fitting on the engine or bypass. I suggest pulling off one hose at a time then using compressed air blow through each(the line and then the fitting) then retry to flush with the hose. If the problem pesist or you don't have access to compressed air, visit a local Kawasaki dealer.
Hope this helps,
Jody