Past couple of rides I notice that the BRP's coolant is about 1" low, and every time I topped it off. Oil on the dipstick looks nice and fresh. Did notice a bit of dried coolant residue on the bottom side of the water pump, but there wasn't much anywhere else. Not sure, but could the seal be going out in the pump. The first time I noticed it was after riding some trails that had a few techincal sections and it was slow going for 5-10 minutes. 1st gear, slipping the clutch and dabbling the feet to stay up. In addition to the radiators, the catch tank was near empty too, and I usually keep it between the min/max lines. Didn't notice anything blowing out. The other possibility is that it blew out during the technical stuff and there was still air trapped in the system the second time I checked it. Anybody had experience with this? How much A**-pain is it to replace the seal?