Just joined the club this weekend after spending quite some time looking for a nice example of this game. A fellow pinsider did a great job LED'ing this game, replacing the plastics, etc., and now I finally get to hear how LOUD the soccer ball motor is when the game is in a quiet environment! (I had only played it before at shows or arcades or such and never noticed how loud it was). I've seen several posts in this topic about mitigating that noise, and will be checking the motor/gearbox to see if any of those suggestions apply.
This is a great game and the GOOOOAAAALLLL sound just sticks in your head!