Cleaning The Discharge Tunnel And The Recycler Plug; Servicing The Air Filter; Servicing The Spark Plug - Toro 20831 Operator's Manual

Scraping Method
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
housing, tip the lawn mower and scrape it clean.
1. Remove the grass bag.
2. Disconnect the wire from the spark plug (Fig. 11).
3. Drain the gasoline from the fuel tank; refer to steps 3
and 4 of Emptying the Fuel Tank on page 20.
4. Tip the lawn mower onto its left side (Fig. 20).
5. 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.
6. Turn the lawn mower upright.
7. Connect the wire to the spark plug.
Cleaning the Discharge Tunnel
and the Recycler Plug
To ensure the best performance, clean the discharge tunnel
and the recycler plug after each use. When the grass is thick
and lush, clippings may collect on and around the recycler
plug, making it difficult to remove.

Servicing the Air Filter

Clean the pre-cleaner and replace the air filter once every
season or every 25 operating hours; replace it more
frequently in dusty operating conditions.
Important Do not operate the engine without the air
filter element; extreme engine damage will occur.
1. Stop the engine and wait for all moving parts to stop.
2. Disconnect the wire from the spark plug (Fig. 11).
3. Remove the screws that secure the air cleaner cover
(Fig. 22).
Ó Ó Ó
Ó Ó Ó
2
1. Cover
2. Foam pre-cleaner
4. Remove the cover and clean it thoroughly (Fig. 22).
5. Remove the foam pre-cleaner.
6. Wash the pre-cleaner with a mild detergent and water,
then blot it dry (Fig. 22).
7. Remove the paper air filter and discard it (Fig. 22).
Important
Do not try to clean a paper air filter.
8. Insert the new paper air filter into the foam pre-cleaner
(Fig. 22).
9. Install the new air filter (Fig. 22).
10. Install the cover (Fig. 22).

Servicing 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. 11).
3. Clean around the spark plug and remove it from the
cylinder head.
Important Replace a cracked, fouled, or dirty spark
plug. Do not clean the electrodes because grit entering the
cylinder could damage the engine.
16
4
1
3
Figure 22
3. Air filter
4. Screws
m-4203