John Deere AC1-CG16H - Manual (Page 28)

Maintenance
 Operator’s Manual
MAInTenAnCe
CLEANING AND GAPPING SPARK PLUG:
If the plug is contaminated with carbon, remove it using a
plug cleaner or wire brush.
Check the spark plug gap and reset it if necessary. The spark
plug gaps are listed below. To change the gap, bend the side-
electrode only, using a spark plug tool. (Fig. )
Install and tighten the spark plug. Connect the spark plug
lead.
Recommended Spark Plug:
BELT TENSION ADJUSTMENT:
To maintain peak performance of your unit, it may be
necessary to adjust the belt tension on occasion. Follow the
procedure outlined below:
. Remove the beltguard and loosen the two nuts on each
side of the pump or engine. There are a total of 4 nuts.
. Turn the cap screw clockwise until a / inch belt
deflection is noticed between the pulleys.
. Tighten the side nuts.
4. Put a straight edge across both pulleys. If necessary,
loosen one set of pulley screws and adjust in or out to
properly align. Tighten the pulley screws and check the
tension again.
5. Replace the beltguard and tighten the fasteners
securely.
Spark Plug Gap
(See recommendations)
Engine Honda
Spark Plug NGK BPR6ES
Spark Plug Gap 0. - 0. mm (0.0 in.)
Torque - New .-0.9 ft-lb
Torque - Retighten 6.6-9.5 ft-lb
(Fig. )