Not sure of the brand of the break rotors but I would guess he replaced them cause the bike has been downed. I don't have a stand so its kinda hard to see if they are warped but I guess I can clean them and see if that does it. While I'm at it I might as well clean the calipers as well, what kinda stuff should I use to clean them? And what do I use to scrub the pads, 120 sandpaper too?
see if someone local can loan you some? This is where filling in your location helps. To view links or images in this forum your post count must be 5 or greater. You currently have 0 posts.
First Id be checking the wheel, off the ground, for free wheel revolutions.
Undo the calipers and check it again
Inspect the calipers.
Clean with mild degreaser like simple green. Any metal should be polished to look new.
When youre done take a q tip dipped in DOT4 and lube the seals.
120-180 grit should be good enough to renew the rotor & pad surface. When doing them by hand keep the rotor turning so youre not concentrating on 1 area. After you finish use brake cleaner on a clean lint free shop towel to hit the rotors a final time. Just clean the pads with mild degreaser.
After all that youll have fresh surfaces to mate. I wouldnt start out grabbing a handful of brake... build some heat between the surfaces with a low speed drag test ride... working up to a hard stop.
Lastly make sure your brake fluid level is slightly above "low"