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Cleaning the Underside of the
Lawn Mower Housing
Warning
Tipping the lawn mower may cause the fuel to leak
from the carburetor or the fuel tank. Gasoline is
extremely flammable, highly explosive and under
certain conditions can cause personal injury or
property damage.
Avoid fuel spills by running the engine dry or
removing gasoline with a hand pump; never
siphon.
If washing does not remove all the debris from under the
deck, tip the lawn mower and scrape it clean.
1. Remove the grass bag.
2. Disconnect the wire from the spark plug (Fig. 10).
3. Drain the gasoline from the fuel tank. Refer to steps 3
and 4 of Emptying the Fuel Tank on page 17.
4. If the grass bag is on the lawn mower, close the door in
the lawn mower housing and remove the grass bag.
5. Tip the lawn mower onto its left side.
6. Remove the dirt and grass clippings with a hardwood or
plastic scraper. Avoid burrs and sharp edges.
Important
Move the blade as little as possible to avoid
future starting problems.
7. Turn the lawn mower upright.
8. Connect the wire to the spark plug.
Servicing the Air Filter
Clean or replace the pre-cleaner once every season or after
every 25 operating hours. Clean or replace the paper
cartridge after every 100 hours or every season; clean or
replace it more frequently in dusty or dirty conditions.
1. Stop the engine and wait for all moving parts to stop.
2. Disconnect the wire from the spark plug (Fig. 10).
Note: For the electric-start model, remove the key from the
switch.
3. Remove the 2 knobs that secure the air filter cover to
the engine (Fig. 15).
Ó Ó Ó
Ó Ó Ó
1. Knobs
2. Cover
4. Remove the cover and clean it thoroughly (Fig. 15).
5. Carefully remove the pre-cleaner.
6. If the pre-cleaner is dirty, carefully wash it with a mild
detergent and water. Rinse the pre-cleaner in clean
water and allow it to dry (Fig. 15).
7. If the paper cartridge is dirty, clean it by tapping it
gently on a flat surface. Replace the cartridge if it is
very dirty.
Important
Do not oil the pre-cleaner or the paper
cartridge. Do not use pressurized air to clean the paper
cartidge.
8. Install the pre-cleaner over the paper cartridge (Fig. 15).
9. Install the air filter cover (Fig. 15).
10. Tighten the cover securely in place with the 2 knobs
(Fig. 15).
Important
Do not operate the engine without the air
filter element; extreme engine wear and damage may result.
Replacing the Spark Plug
Check the spark plug after every 25 operating hours. Use a
Champion RC12YC spark plug or equivalent.
1. Stop the engine and wait for all moving parts to stop.
2. Disconnect the wire from the spark plug (Fig. 10).
3. Clean around the spark plug.
4. Remove the spark plug from the cylinder head.
Important
Replace the spark plug if it is cracked,
fouled, or dirty, or the electrodes are worn or damaged. Do
not clean the electrodes because grit entering the cylinder
can cause engine damage.
13
m-3664
Figure 15
3. Foam pre-cleaner
4. Air filter
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