Bob;

        The first thing that pops i= my mind is idle position sensor. Easily checked. Have significant other slowly= depress gas pedal (with engine off) as you listen at throttle body. You = should hear a click as gas pedal comes off, and returns to, idle position.       

        If not that let me know.

Starts up, but won't stay running.  If = throttled and engaged, it will go, but when you stop it dies on you.  Have = tried replacing spark plugs, air filter, cap and rotor, and carburetor cleaner= - and still having problems. 

 

Bob Mendonca