Throttle abruptly does not respond

[RhoRidge]

3-year-old Troy-Bilt Broncho was mowing as usual, stopped moving, throttle pedal now can be depressed without resistance. What is the mostly likely problem?

 

[ILENGINE]

Drive belt came off or broke. Will need to look up inside the frame to determine exact cause.

 

[RhoRidge]

It's a given: you don't have the non-functioning equipment to examine. Nevertheless, your "diagnosis" is most helpful. Thanks. RhoRidge