WARNING! Operating the engine without an air filter, or with a damaged air filter,
will allow dirt to enter the engine, causing rapid engine wear. This type of damage
is not covered.
AIR FILTER INSPECTION AND CLEANING - PLEATED FILTER WITH PRE-FILTER
CAUTION: The air filter must be serviced (cleaned) after 25 hours normal working.
Service more frequently when operating the machine in extremely dusty areas.
1. Release the air filter cover (fig. 41A).
2. Remove the air filter cover. Be careful to prevent dirt and debris from falling into the air filter
base.
3. Remove the pre-filter (fig. 42A) and the air filter (fig. 43A) from the air filter base.
4. Inspect the air filter elements. Clean dirty elements.
5. To loosen debris, gently tap the filter on a hard surface or blow compressed air through the
filter from the inside out. Never try to brush the dirt off, brushing will force dirt into the
fibers. If the filter is excessively dirty, replace with a new filter.
6. Wash the pre-filter in liquid detergent and water. Then allow it to thoroughly air dry. Do not
oil the pre-filter.
7. Install the filter and the pre-filter back.
8. Close the cover and secure it.
NOTE: Replace filter if frayed, torn, damaged or unable to be cleaned.
SPARK PLUG
For best results, replace the spark plug every 100 hours of use. Use only the recommended spark
plug which is the correct heat range for normal engine operating temperatures. To find actual
types of recommended spark plugs please contact an authorized service center.
Warning!!! If the engine has been running, the muffler and the spark plug will be
very hot. Be carefull not to touch this parts.
NOTE: Incorrect spark plugs can cause engine damage.
For good performance, the spark plug must be properly gapped and free of deposits.
1. Disconnect the cap (fig. 44A) from the spark plug, and remove any dirt from the spark plug
area.
2. Use the proper size spark plug wrench to remove the spark plug (fig. 44B).
3. Inspect the spark plug. Replace it if damaged, badly fouled, if the sealing washer is in poor
condition, or if the electrode is worn.
4. Measure the electrode gap with a suitable gauge (fig. 45). The correct gap is listed in the
Specifications. If adjustment is needed, correct the gap by carefully bending the side electrode.
5. Install the spark plug carefully, by hand, to avoid cross-threading.
6. After the spark plug is seated, tighten with the proper size spark plug wrench to compress
the washer.
7. When installing a new spark plug, tighten by 1/2 turn after the spark plug seats to compress
the washer.
8. When reinstalling the original spark plug, tighten by 1/8 - 1/4 turn after the spark plug seats
to compress the washer.
To Next Page
Loading...
