Hello, all! Hoping for some assistance. Have a 2016 Sportsman 850. Went for about a 40 mile drive in the mountains yesterday, say 20 up and the latter 20 heading back down. It was all downhill close to the truck. Was intermittently throttling and using the hill descent feature to maintain about 30 mph. Started running rough and backfiring and eventually quit running altogether. Had to go into neutral and coast to the truck. Got home and today I charged the battery up and checked air filter. Will not start unless I squirt a small amount of starting fluid in the intake. Dies once the fluid burns out. Any thoughts? I am not too familiar with the maintenance and have no idea where the fuel filter might be. Thank you!