Hey guys so I’m trying to do the front pads on my 07 trx 400 ex And having a fun time. I can’t seem to get the caliper piston in all the way to get the new pads over the rotor. I have the reservoir cap off and used a c clamp to compress them but still won’t fit over the rotor. I can squeeze my brake handle and the piston moves in and out freely not frozen or anything. So my question here is what am I missing? how far in is the piston supposed to be? I don’t want to damage anything