my 81 seca has the left inside brake pad seizing, not releasing from the rotor, a few times first thing in the morning. it´s to the point of slowing the bike down when in neutral or clutch in. the rest of the day is okay. another subject, also anybody cut holes into the air-cleaner-box to allow more air to the carbs? better or worse results? i have aftermarket pipes, but are fairly quiet. thanks,, robin