Simplicity CFC Series Operator's Manual page 36

Adjustments
Transmission Speed Variation
If rider pulls to one side with the steering wheel in a straight
forward position, the hydro pump linkage can be adjusted to
correct for unequal pump output. This adjustment limits the
output of a faster hydro pump at less than maximum forward
speed. Refer to "Forward Travel Stop Adjustment" for
maximum forward speed adjustment.
To adjust hydro pump linkage (A, figure 18), loosen retaining
hardware and move linkage upward in slot (B) to reduce
hydro pump output. Retighten flange locknut (C) after
adjustment is complete.
34
_i_i_:
18
.
dro Pump Linkage
ustment Slot
ige Locknut