Originally Posted by pointe_blanke 
Hello,
I have a 2001 Polaris Expedition 425. When it gets hot the engine quits. I replace spark plug and it fires up and goes again.
I have cleaned and replaced carb, replaced coil.
Not sure what to do next.
Your help is appreciated
something is getting hot and shutting down..., can u reuse ur spark plug? or does it burn it out.... could it be flooding out and killing the plug as opposed to an electrical problem.... check stator wiring, for electrical, as u can test everything but the cdi, if its overfueling the carb clean should have done it,,unless the needle and seat are worn...which would cause overfueling which would kill the plug.... changing the plug seems to fix it, i would be leaning towards,, fuel,, not to often electrical kills the plug,,maybe a bad regulator....?
Good luck
Terry