Replacing The Spark Plug; Cleaning The Fuel Filter - Toro 04052 Operator's Manual

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Figure 30
1. Foam element
A. Wash the foam element in a solution of liquid soap
and warm water.
B. Squeeze to remove dirt, but do not twist it because
the foam may tear.
C. Dry it by wrapping it in a clean rag. Squeeze rag and
foam element to dry it.
D. Saturate the element with clean engine oil.
E. Squeeze the element to remove excess oil and to
distribute the oil thoroughly. An oil damp element is
desirable.
5. Check condition of the paper element. Clean or replace
it as required.
6. Install the foam element, paper element, and air cleaner
cover.
Important
Do not operate the engine without the air
cleaner element because extreme engine wear and
damage will likely result.

Replacing the Spark Plug

Use an NGK BPR 5ES spark plug or equivalent. The
correct air gap is 0.028 to 0.032 in. (0.05 to 0.07 cm).
Remove the plug after every 100 operating hours and check
its condition.
1. Pull the wire off of the spark plug.
2. Clean around the spark plug and remove it from the
cylinder head (Fig. 31)
Important Replace a cracked, fouled, or dirty spark
plug. Do not sand blast, scrape, or clean electrodes
because engine damage could result from grit entering
the cylinder.
2. Paper element
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Figure 31
1. Spark plug
3. Set the air gap at 0.028 to 0.032 in. (0.05 to 0.07 cm)
(Fig. 32).
4. Install the correctly gapped spark plug and tighten it to
17 ft.-lb. (23 N⋅m).
Figure 32

Cleaning the Fuel Filter

Initially, clean the fuel filter after the first 20 hours of
operation; thereafter clean it after every 50 hours operation.
1. Close the fuel shut off valve and unscrew the bowl from
the filter body (Fig. 33).
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Figure 33
1. Shut-off valve
2. Clean the bowl and filter in clean gasoline and install it.
0.028–0.032 in.
0.05–0.07 cm
2. Bowl