My 2017 Polaris 850 SP has 70 miles on it. Used only for ice fishing. In temps above and below zero it won't always start. When you go to start it if you don't initially hear the fuel pump pumping you have to turn it off wait a bit and try it again until you hear the fuel being pumped and then you can start it. I have changed out the relay as advised but nothing has changed. My battery has been tested and is supposedly great. Dealership mechanics just stare, have no idea what to do. Any help out there?