12 DR
®
VERTICAL SHAFT ENGINE
Never clean the air cleaner element with gasoline or low flash-point detergents, or explosion may happen.
Maintenance of Air Cleaner
A dirty or damaged air cleaner will allow dust to enter into the Engine causing rapid Engine wear. Service the air cleaner as
recommended by the manufacturer.
1)
Remove the Air Filter Cover (Figure 10).
2)
Remove the air filter (foam element or paper element).
3)
Check and clean air cleaner parts.
4)
Replace any damaged air cleaner parts.
5)
Reinstall the air filter and cover
Maintenance of Spark Plug
In order to ensure the Engine will run normally, setting the gap of the Spark
Plug must be correct and no deposit around the Spark Plug.
Recommended Spark Plugs:
1)
Remove the Spark Plug cap.
2)
Clear away any dirt or debris around the Spark Plug base.
3)
Remove the Spark Plug with a Spark Plug wrench.
4)
Visually check the Spark Plug (Figure 11). Clean with a steel brush. If the
insulator is damaged, replace the Spark Plug.
5)
Measure the Spark Plug clearance with a feeler gauge. The clearance should be 0.7~0.8mm (.028"-.031"). If adjustment is
necessary, bend the side electrode carefully.
6)
To avoid cross-threading, first, screw in Spark Plug by hand, then tighten with a Spark Plug wrench to compress the
gasket.
Note: If a new Spark Plug is used, please replace it with same Spark Plug model.
7)
Turn a new Spark Plug 1/2 turn after the gasket is touching to compress the gasket.
8)
Turn a used Spark Plug 1/8-1/4 turns after the gasket is touching to compress the gasket.
If you use compressed air to clean the paper element, wear ear and eye protection to prevent injury.
Allow the muffler to cool for at least 15 minutes before removing the Spark
Plug to prevent burn injuries.
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