Got an 04 YZ 450, took it out for a couple hours and overheated, realized it was because the antifreeze was pouring out of the weep hole on th bottom of the pump. had some extra water on me so tried to refill radiator. Bike wouldnt start and had to get a pull back to camp. And yea it was the first ride of the weekend. When i got home i took the crank case off and found antifreeze/water in the oil. Heard i need to replace the seals but was wondering what else i might need to do. Any suggestions?