Today I went riding here in SoCal in a place called Moreno Valley. It was about 80F or so and we were on some tight, technical trails and all of the sudden I am blowing A LOT of coolant out of the little weep hole under the impeller cover of the water pump. In fact it drained every last drop out. Luckily I had a fanny pack and enough water to refill. Now, 2 weeks ago, i blew on of the seals in my water pump and replaced both and they have had 2 rides on them with no problems. Why would all the coolant blow out of that hole and then when I refill the radiator and let the bike cool a bit, it runs fine and no coolant loss? Wierd... Any help is appreciated!