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MAINTENANCE
ADJUSTING THE IDLE SPEED
If the engine will not idle properly:
1.
Start the engine. Refer to Starting and Stopping.
2.
Let the engine idle. If the engine stops, increase the idle
speed. Use a small Phillips screwdriver to turn the idle
speed screw clockwise, 1/8 of a turn at a time, until the
engine idles smoothly (Fig. 13).
MAINTAINING THE SPARK PLUG
1.
Stop the engine and allow it to cool.
2.
Grasp the spark plug boot firmly and pull it from the
spark plug (Fig. 14).
3.
Clean around the spark plug. Remove the spark plug
from the cylinder head with a 5/8-inch socket, turning
counterclockwise.
WARNING:
Do not sand blast, scrape
or clean spark plug electrodes. Grit in the engine could
damage the cylinder.
4.
Inspect the spark plug. If the spark plug is cracked,
fouled or dirty, replace it with replacement part
Newstar
AM5C, or a NGK CMR5H,
or an equivalent spark plug.
5.
Use a feeler gauge to set the air gap at
0.025 - 0.31 in. (0.6 mm - 0.8 mm)
(Fig. 15).
6.
Install the spark plug in the cylinder head. Tighten the
spark plug with a 5/8-inch socket, turning it clockwise
until snug.
Note:
If using a torque wrench, torque to:
159 in.•lb. (18 N•m). Do not over tighten.
7.
Reattach the spark plug boot.
Idle Speed Screw
Fig. 13
Spark Plug Boot
Fig. 14
0.025 in. - 0.31 in.
(0.6 mm - 0.8 mm)
Fig. 15
Содержание BL4QL-L
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