Hi Jason,
I'm assuming its the WMS IJ?
Depends on how long you've had the machine and whether it was fully shopped previously (inc flipper kits).
Whenever I get a new machine (new for me that is) I always rebuild the flippers with a full flipper kit from either RTBB or PinballSpareParts. I also replace the nylon bushes (important).
The coil should be OK (test with a DMM if you have one)- game off and unplugged of course) and new coil sleeves go with the flipper kits.
If they have been replaced not so long ago - it may be that the EOS needs adjustment.
http://www.pinrepair.com/wpc/index3.htm#flipBest of luck.
