I just put a new OEM set of brake pads on my '03 GL1800. Had a little trouble getting them in, but I attributed it to having to lay on the ground to get to them, but nothing big. Went on my first ride afterward and could hear a sound like they were rubbing, then I remembered an old mechanic friend once told me that they will make that sound. Rode for about 45 mins and started to slow down to pull into the house and the back brake started, like pulsing...almost similar to what ABS brakes feel like when you brake on ice. Got off the brake, slowed with the front brake and tried it again, only at a slower speed...like about 20mph...same pulsing. Got it in my shop and on the center stand and felt of the rotor and brake caliper and both were HOT! Let it cool overnight and rode it for about 3 miles the next morning and it didn't do it again. Any suggestions what the problem might be?