Ok Guys need some help. I have a 2014 420 manual shift, with around 750 miles. While riding it the other day my 14yo son got it in some pretty deep water, not over the tank. he kept it running, we pulled him out and cut it off. checked the oil (no water) it was low but no milky color at all. checked the breather box. It had oil in it . Really don’t understand that one. Anyways after all that it wouldn’t crank. tried a couple of times but wouldn’t stay running. checked the plug, it has spark. Got it back to the house, topped the oil off still wont start. Pulled the air filter sprayed a little starting fluid and it will try to start. so its gotta be fuel related. Right??