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IMPORTANT: Do not oil pre–cleaner or
paper cartridge. Do not use pressurized air to
clean paper cartridge.
6.
Reinstall pre-cleaner over paper cartridge.
Reinstall air cleaner cover and tighten securely
in place with two (2) knobs.
Replacing Spark Plug
Remove plug after every 25 operating hours and
check its condition. Replace spark plug every 100
operating hours or every season. Use a Champion
RC12YC spark plug or equivalent.
1.
Stop engine and wait for all moving parts to
stop. Pull wire off spark plug (Fig. 12).
2.
Clean around spark plug and remove plug from
cylinder head.
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 cylinder.
3.
Set air gap at 0.020" (0.5 mm) (Fig. 18). Install
correctly gapped spark plug and gasket seal.
Tighten plug firmly to 14 ft–lb (19 N m).
Draining Gasoline
1.
Stop engine and wait for engine to cool. Pull
wire off spark plug (Fig. 12).
Note:
Drain gasoline from a cold engine
only.
2.
Remove cap from fuel tank and use pump–type
syphon to drain fuel into clean gas can.
Note:
This is the only procedure
recommended for draining fuel.
EN–11
Changing Crankcase Oil
Change oil after the first 5 operating hours and then
after every 50 hours or every season. Change oil
while engine is warm.
Note:
Change oil every 25 hours when
operating under heavy load or in high
temperatures.
1.
Stop engine and wait for all moving parts to
stop. Pull wire off spark plug (Fig. 12).
2.
Remove grass bag. Drain gasoline from fuel
tank: refer to Draining Gasoline, page 11.
3.
Remove dipstick from oil fill tube and place a
drain pan next to left side of mower.
4.
Tip mower on its left side, allowing oil to drain
into drain pan (Fig. 19).
5.
When oil is drained, return mower to upright
position and add fresh oil to engine. Refer to Fill
Crankcase With Oil, page 5.
Replacing Oil Filter
Replace the oil filter (Fig. 19) after every 100
operating hours or yearly, whichever occurs first.
1.
Drain gasoline from fuel tank; refer to Draining
Gasoline, page 11.
2.
Drain oil. Refer to Changing Crankcase Oil,
page 11.
3.
Place a rag under oil filter to catch any oil that
may leak out as filter is removed.
4.
Remove oil filter and discard it.
5.
Using your finger, coat the gasket on the new
filter with oil (Fig. 20).
6.
Install the new filter and hand tighten it 2/3 turn
only.
7.
Check the filter for any oil leaks.
8.
Properly discard the oily rag.
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