oulander1000 sparking against cylinder

so i have a 2015 outlander 1000 xt, its snorkeled, has duel muzzys full exhaust. every time the spark plug touches water it dies. iv changed the boots.the boots and wire. now im going back to new OEM wire and boots but dies when you spash water or put water hose on it. riding in shallow creek spashes water up and will die and sometimes start running on one cylinder really need some help!