Toro Groundsmaster 4000-D Service Manual page 209

Starting Problems (Continued)
Problem
Starter cranks, but should not, when the traction pedal
is depressed.
Engine cranks, but does not start.
Groundsmaster 4000--D/4010--D
Possible Causes
Traction pedal position sensor is out of adjustment.
Traction pedal position sensor or circuit wiring is faulty.
The fuel tank is empty.
The engine is not cranking fast enough.
The fuel pump or circuit wiring is faulty.
The engine or fuel system is malfunctioning (see
Yanmar Service Manual).
Page 5 - - 19 Electrical System