Gottlieb Genesis
Ever since I purchased this machine I've had a weaker pop on the right slingshot. It has a different coil in it than the left and it also looks like at some point a previous owner swapped the knocker coil into the right slingshot coil. That's just a hunch though. I ordered a new coil from the specs in the manual just in case. How would I go about diagnosing the problem? Should I just replace the coil?