Hi all, I am new to the site, and Polaris. I picked up a 2003 600 twin with a few issues for a good price. As I dive into this horse I am finding all kinds of strange things. The worst so far is after researching the issue the owner told me of "this thing over heats every dam time " I checked the radiator, overflow , and saw the had fluid. I then took off more of the 600 pieces of plastic on this quad and tore into the waterpump. Once inside I saw no impeller, and what looked like black and green slush. After sticking my finger in the slush I realized it was plastic. I now know where the impeller went. I did proceed to flush the radiator, and motor to get the rest of the plastic out. My question is does this happen often? is it a know issue since Polaris changed all the plastic pieces from the waterpump to aluminum? And how do I know if this wiped out the water pump seal ? Any info would be great.