MakerBot Industries

Very normal. If you read the gcode (the second tab in RepG windows that is filled when you generate code for that file previously) you will see that it sets the temperature to 225 for printing under the standard conditions for ABS:

M104 S225 T0 (set extruder temperature)

PS: The 245 that was there before I use to print with MABS (clear ABS). Sorry!

Note that the system temperatures are controlled with 'PID'. This, as you may know, when you heat there will be ramp up to your temperature goal. The system can not just nail the set temp. There is an overshoot then a cool which may under value. So, there is an inherent oscillation to get to the set temp. The 'PID' can be adjusted to give a balance of heat up, and the response to match the set temp. It can minimize the oscillation of heat and cooling around the desired set temp.