Troy-Bilt 12157 - Manual (Page 18)

3. Return the tiller to its normal upright operating
position and reconnect the spark plug lead.
4. If the engine continues to run poorly, please con­
tact an authorized Tecumseh Service Dealer.
TINE REMOVAL & INSTALLATION
Figure 14: Idle mixture screw can be adjusted.
COOLING SYSTEM
Frequently remove debris from the engine cool­
ing fins, around the air intake screen, and levers
and linkage. This will help to ensure adequate
cooling and correct engine speed.
SPARK PLUG
Inspect the spark plug once yearly or every 75
operating hours. The gap should be set at .030".
Refer to the Engine Owner’s Manual for cleaning
and replacement information.
A
WARNING
Worn tines may be sharp. Wear heavy
gloves when removing, handling, or rein­
stalling tines to prevent personal injury.
IMPORTANT: The four tines are not interchange­
able. They must be reinstalled in the same posi­
tions and their cutting edges must face forward. If
replacing tines due to wear, replace all four as a
set, rather than replacing a single, worn tine.
To be sure of reinstalling the tines in the correct
order, mark the tines as follows; Disconnect the
spark plug wire. Use a sharp nail or awl to
scratch the tine location on the tine (Outer l_/H,
Inner I_/H, Outer R/H, and Inner R/H).
Photo 16: The correct position of the tines.
Swept-Back Edge of Tine
' M ust Enter Soil First
Uiic>( lion of Rotation
(Viewed f|om Right Side of
Tines Are Stamped “R” or “L”
for Right and Left Side Locations
Photo 15: Removing the hairpin cotter. Photo 17: Side view of a tine.
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