Electrical Gremlin 2008 400

Got an issue, one of our riders has a snorkelled outy 400 max. We have put dielectric grease on all the connectors but when just above floor boards hit water ( fully submersed ) it dies instantly like the kill switch was hit. It has trouble starting after that. We have been tracing and looking for bare or stripped wires….:th_smiliepullhair: nothing, anyone have a suggestion or run into this before??