I have a mid-2000s Polaris Sportsman 500 6x6 that only gets used a few times a year for hunting. I went to pull it out of the shed this morning to start working on it, but I can't keep it running. It will start and idle just fine, but as soon as I press on the gas it immediately dies regardless of whether it is in gear or neutral. I let it idle for 20 minutes after the first few times, but even then it died as soon as I pressed the throttle even a little.
While I'm sure there are a number of possibilities, are there any common reasons why this might be occurring? First place to check for someone who is pretty illiterate when it comes to engines?