What lets the gas get into the oil - Polaris 2004 Sportsman 700 Twin

yes it can so can anti-freeze but usually gas from carb floats sticking and leaking back into cylinder can cause hard starting and can clean oil off bearings causing damage https://www.polarisatvforums.com/threads/gas-in-oil.10700/

Its the oil injection tank. This is the oil that mixes with the gas. Without and oil/gas mixture your 2 stroke motor will be ruined due to lack of internal lubrication. Some people will disconnect them and premix the gas due to a fear of failure of the injection system.

, usually due to a leaking fuel line or malfunctioning fuel injectors. However, it is normal for a small amount of gas to get into the engine oil during normal engine operation.

Being a 2012, I am sure it is fuel injected and not carbureted, so I am sure that there would be no fuel in there. I truly doubt that oil would be in there unless this crash was violent enough to crack a block or head. If it were mine, I would check the oil level, if good, start it and run to operating temperature. Then turn it off and let cool to cold, check oil level, as well as check coolant. If the coolant looks lime green(if it uses green coolant) and not chocolate milkshake brown, I would say you are good to go!

the shareof oil in the enginea bit

2 cycle oil wont hurt it a bit,drain the gas out and start fresh,oil is good for a motor,smell the gas,it may smell bad,which means the oil and gas have congieled

a lot of gas? thats a bad float in the carb. a gas smell could be lots of small trips.

sounds like the float in the carburetor or needle valve is failing and gas fills up the bowl, rides down the cylinder and into the oil pan.
Do you notice gas pouring out into the air cleaner?

if its the type of dipstick that unscrews usually you have to unscrew it first, clean it then dip it back in without screwing it in.

If the oil is milky it has a bad and leaking seal somewhere that the gas is gitting in, or it has water in it. Water does not mix well with oil as you may know so I'd guess its gas is getting in. If it does run, change the oil right away then see if the oil develops the milky look again. Probably a seal would be my guess. Good luck.