Sled needs choke even when warm?

[Pillowydrops]

Having an issue with my 07 summit 800 REV. It's got a relatively new short block in it (roughly 400k on it), but sometimes it just wont start when I'm out playing around.

Yesterday it happened a couple of times that I was ripping around, came to a stop, shut it off then it wouldnt start no matter how many pulls. The only thing that seems to get it going again is by giving it a few minutes then using the choke.

Anyone have any ideas what might be going on? I'm not very mechanical, but understand some of the basics. Any advice on things to check would be appreciated!

 

[slomo]

if you have to choke it to get it going its lean,may have an issue with the compensator i dont know skidoo to well though

 

[Summiteer]

Check out your carb boots, may be cracked, leaning chit out.