Engine Adjustments - Troy-Bilt 979 Operator's Manual

Reassemble theupper handle tothelower handle.
Attach thestarter r opeasinstructed i nthe
Assembly S ection.
_'_ Notch
Lower Han_tle _/
Figure 12
DriveClutchControlAdjustment
The adjustment wheel is located in the ddve clutch
control handle housing and is used to tighten or loosen
the drive belt. You will have to adjust the drive clutch
control if any of the following happens:
The mower does not propel itself with the drive
clutch engaged.
The mower's drive wheels hesitate with the drive
clutch engaged.
To resolve the above problems, rotate the adjustment
wheel with your fingers. Clockwise to tighten the cable
and counter-clockwise to loosen the cable.
See Figure 13.
Bottom View
® ®
Adjustmenl
Wheel
.=Clutch
Control
Figure 13
NOTE: For some people the drive clutch control may
not be in a comfortable position. You can adjust the
handle out by tightening the adjustment wheel.
Shift LeverCableAdjustment
Periodic adjustment of the six speed shift cable may be
required due to normal wear on the cable. Adjustment
is needed if all six speeds do not work.
The adjustable cable bracket is located on the left side
of the mower beside the engine. See Figure 15.
Start engine and place speed control lever in the
sixth speed position. See Figure 14.
Bottom View
®
Speed Control
Lever
Figure 14
Stop engine and disconnect spark plug wire and
ground it against engine.
Loosen hex nut which secures the adjustable cable
bracket. See Figure 15.
Push back on the adjustable cable bracket and
tighten hex nut.
Adjustable Cable
Bracket
Hex Nut
Figure 15
EngineAdjustments
See the separate engine manual packed with your unit
for adjustments to the engine,
13