Surf n safari flipper machine gunning

[Body pop]

can anyone help me with this ,the left flipper on my surf n safari is machine gunning ,arcing quite badly
So far I’ve changed the coil ,and capacitor .but no luck
I tried cleaning the eos switch a bit ,but it has gotten worse ,I haven’t been able to locate the right eos switches yet
Anyone any ideas what else I could try or what could be causing this ,it just started happening during play
Thanks