Engine shutting down on its own?

[joshm8979]

I'm having problems with my 450R shutting down on its own. My problem occurs after it is ridden for a while and then parked at idle. It will shut down on its own. My atv is and 05 with less than 7 hrs. I am running a FMF titanum 4 exhaust, jetted 175, and no lid. It runs great so I don't think any of this has to do with it. Thanks for the help! One more question. When do you use the Hot start button?

[ATC350X 85]

Sometimes random stalling is attributed to have the intake valves too tight. Also with your mods, have you checked the color of the spark plug, is it jetted correctly. You use the hot start button to start the quad after it is warm, say after a 5 minute break when youre out riding with your friends.