Perform the previous Stall Speed Check procedure through the “Bring the engine speed back to low idle” step
then complete the following:
โข Quickly move the throttle to the full-open position, and start the stopwatch at the same time.
โข When the engine speed is 90 percent of the stall speed rpm, stop the stopwatch.
Example: Stall speed 2089 [2089 x 0.90 = 1880 rpm].
NOTE: The type of unit and the stall speed rpm can make the stall speed time a maximum of 10 seconds.
Check the equipment manufacturer’s specifications for the time to stall or the acceleration time.
If the time is excessive, refer to the Stall Speed Checklist in this procedure.
