As Jahlion said, buy a manual. I've got one for my '96 and it is an immense help when doing repairs, even if they are minor. Front rotors are pretty easy to take off though. First of all, you have to take your front wheel off, so you need a frontstand or a bike jack. Loosen your front axle and remove it, then take off your brake calipers and use zip ties to hang them on the bike so the brake lines aren't supporting the weight. Then roll the front wheel out from under the fender, and unscrew the rotors. Pretty straightforward.