Replacing The Spark Plug - Okay BLS 31 Mode D'emploi

screws
Cleaning the Air Filter
Clean and re-oil the air filter every 10 hours of opera-
tion. The air filter is an important item that requires
regular maintenance. Not maintaining the air filter will
VOID the warranty.
1. Remove the air filter/muffler cover. See Removing
the Air Filter/Muffler Cover.
2. Remove the air filter from behind the air filter/muffler
cover (Fig. 23),
3. Wash the filter in detergent and water (Fig. 24).
Rinse the filter thoroughly. Squeeze out excess wa-
ter. Allow it to dry completely.
4. Apply enough clean oil to lightly coat the filter (Fig.
25).
screws
5. Squeeze the filter to spread and remove excess oil
(Fig. 26).
6. Replace the air filter in the air filter/muffler cover
(Fig. 23).
NOTE: Operating the unit without the air filter and
air filter/muffler cover assembly, will VOID the war-
ranty.
Installing the Air Filter/Muffler Cover
1. Place the air filter/muffler cover over the back of the
carburettor and muffler.
NOTE: The choke lever must be in position B (Fig.
22) to install the air filter/muffler cover.
2. Insert the four (4) screws into the holes in the air
filter/muffler cover (Fig. 22) and tighten them. Use a
flat blade or T-20 Torx bit screwdriver. Do not over-
tighten. Do not use excessive force.

REPLACING THE SPARK PLUG

Use a type RDJ8J spark plug (or equivalent ). The cor-
rect air gap is 0.5 mm (0.020 in). Remove the plug after
every 50 hours of operation and check its condition.
1. Stop the engine and allow it to cool. Grasp the plug
wire firmly and pull the cap from the spark plug.
2. Remove any dirt from around the thread. Remove
the spark plug from the cylinder using a 5/8 in. spark
plug wrench and turning it counterclockwise.
3. Replace cracked, fouled or dirty spark plugs. Set the
air gap at 0.5 mm (0.020 in) using a feeler gauge
(Fig. 27).
GB-13