This is on a 04 Turf Tracer with 1270 Hours w. Kawasaki 17hp electric start. Made an expensive mistake today. I was in a hurry and didnt check the oil yesterday or today and as i was mowing today at full RPM with blades engaged the the engine suddenly dropped down to what seemed to be about half throttle (going by sound). I quickly turned blades off throttled down and shut the mower off. I cranked it back on and it seemed to be really hot. I throttled up and it seemed to have a miss about full throttle. so i shut it down checked the oil and to no surprise, no reading on the dipstick unless it was screwed down tight. I walked up to the truck and got a quart of oil and added it to it and limped it back to the trailer. on the way to the trailer i messed with the throttle a little and it no longer has a miss at full throttle but it does not sound right.... seems too quiet. Any information about what all could be messed up is greatly appreciated. I'd like to know what im looking at before i take it in. Or if i should start lookin at new mowers.