My XR600R stalls at idle but restarts with no problem. It doesn't do it all of the time but too often for my liking. It mainly seems to do it when it's warmed up at operating temperature. Does anyone have any ideas and where to start looking? It doesn't seem to be lack of fuel because it starts with no problem and seems to run fine. Also, I believe it is bone stock and I am wondering how to know if it is jetted correctly. How do I know if it is lean or rich. Sorry for my ignorance as this is my first four-stroke. Thanks for any help I can get.