I have owned this sled for 7 years. 2 years ago I had a top end done on it. Ever since ,the sled will not start when it has set for several days. As long as you start it everyday it starts fine but as soon as it sits for 3 days it won't start. I took it to the local shop last season and they re jetted it. I took it home and it started just great. let it sit for 3 days wouldn't start. I took it back and it has sat there ever since. Any body have any ideas?
TNRC

Try shutting off the gas each time you stop it, maybe the float is sticking and flooding the engine.
Tell us what you checked ,for spark,,,plugs wet,fuel pump working, choke/ primer working