3. Remove the screws (E) and remove the exhaust
duct (D).
Note: The inner surfaces of the muffler contain
chemicals that can cause cancer. Be careful not to
touch these elements if the muffler is damaged.
4. Remove the spark arrester screen (C) and clean it
with a wire brush. Remove dirt from the inlet and
outlet of the muffler with the wire brush. Also,
remove dirt from the exhaust port of the cylinder with
the wire brush.
5. Replace the spark arrester screen if it is damaged.
6. Attach the spark arrester screen (C) and the exhaust
duct (D) with the screws (E). Tighten the screws to
2-3 Nm.
7. Install the muffler. Refer to
To remove and install the
muffler on page 15
.
7.6 Air filter
7.6.1 To clean the air filter
Clean the air filter regularly from dirt and dust. This
prevents carburetor malfunctions, starting problems,
loss of engine power, wear to engine parts and more
fuel consumption than usual. Clean the air filter at an
interval of 40 hours of operation or less if it is heavy
operation conditions.
1. Loosen the knobs that hold the air filter cover.
2. Remove the air filter cover (A).
3. Remove the foam filter (B) and the paper filter (C)
from the filter frame.
4. Replace the paper filter (C).
CAUTION: Do not hit the paper filter to
make it clean. This will cause damage to the
paper filter.
5. Examine the foam air filter for damage. Replace the
foam air filter if it is damaged.
6. Clean the foam filter (B) with warm soap water.
Note: An air filter that is used for a long time can not
be fully cleaned. Replace the air filter regularly and
always replace a defective air filter.
7. Make sure that the foam filter (B) is dry.
8. Clean the inner surface of the air filter cover with a
brush (A).
16 - Repair instructions 1662 - 003 - 04.11.2021
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