I'm new to PWC and recently bought a new Spark HO900 last fall and store it in the shed, about every two months I would start it to keep it lube and to do a battery check. Of course I hook the hose up when I ran it and never went over 2 mins with it. The first time the engine ran sweet and smooth. the second time two months later (with water running) I notice a vibration in the engine and not running smooth specially between 2500 to 6000 rpm's, I got a High Temp alarm and shut it down immediately!.. when I shut the machine off a small amount of white smoky vapor is coming out the back of the machine. Did I do damage to the engine already?