MAINTENANCE
17
F-051302L
SPARK PLUG
Check the
spark plug
every 25 hours. Re-
place the
spark plug
if the electrodes are
pitted or burned or if the porcelain is
cracked.
1. Make sure the
spark plug
is clean.
Clean the
spark plug
by carefully scrap-
ing the electrodes (do not sand blast or
use a wire brush).
2. Check the
spark plug
gap with a
feeler
gauge
. See “Product Specifications” for
the correct
spark plug
gap and replace-
ment
spark plug
.
3. Before installing the
spark plug
, coat
the threads lightly with oil for easy re-
moval. Tighten the spark plug to a torque
of 15 foot-pounds.
Figure 11
Spark Plug
Feeler Gauge
0.035”
HOW TO CLEAN THE AIR FILTER
The engine uses a foam air filter that can be
cleaned and reused. Clean and oil the air
filter every 25 hours. Clean more often in
dusty conditions. Remove and clean the air
filter as follows:
CAUTION: Never run the engine without
the air filter installed. An air filter clogged
with dust can result in loss of engine
power and can cause excessive wear or
damage to the engine. If the air filter is
clogged, clean or replace immediately.
1. Disconnect the spark plug wire from the
spark plug.
2. Remove the
screws
from the
air filter
cover
(see Figure 12). Remove the
air
filter cover
and the
air filter.
3. Wipe the
cover
and the inside of the
air
filter housing
with a clean cloth.
4. Clean the
air filter
in a solution of water
and household detergent. Rinse tho-
roughtly in clean water.
5. Wrap the
air filter
in a dry clean cloth.
Squeeze out (do not twist) all solution
until dry.
6. Cover the outside of the
air filter
with
oil. Use the same type of oil as used to
make the fuel mixture. Lightly squeeze
the
air filter
to distribute and remove
any excess oil.
7. Put the clean
air filter
into the
air filter
housing
.
8. Install the
air filter cover
and secure
with the
screws
as shown.
9. Connect the spark plug wire to the spark
plug.
Figure 12
Air Filter
Cover
Screw
Filter Housing
CYLINDER EXHAUST PORTS
Clean the cylinder exhaust ports after every
75 hours of operation. For this procedure, we
recommend that you take your unit to a Au-
thorized Service Center.
Summary of Contents for 11053x92a
Page 27: ...NOTES 27 F 051302L...
