Hey folks...I need some help. I have a 2005 Polaris Sportsman 800. Excellent shape and runs amazing. While riding a couple weeks ago the front brakes locked up while I was riding. Hand brake was so hard I couldn't move it at all. After it sat about 30 minutes I had movement on the hand brake and was able to get it home. I drained the lines and the master cylinder on the handlebar and bled the brakes. Went riding for the first time since i bled it today and it did the same thing. I dont know where to go from here. There was a gel like substance in the master cylinder and the fluid that came out was orange looking. Flushed until it ran clear. Any ideas on what I need to do next will be greatly appreciated.