Operator's Manual

EN–11
POTENTIAL HAZARD
• If you leave the wire on the spark plug,
someone could start the engine.
WHAT CAN HAPPEN
• Accidental starting of engine could
seriously injure you or other bystanders.
HOW TO AVOID THE HAZARD
• Pull wire off spark plug before you do any
maintenance. Also push wire aside so it
does not accidentally contact spark plug.
Servicing Air Cleaner
Normally, clean air cleaner after every 25 operating
hours. More frequent cleaning is required when
mower is operated in dusty or dirty conditions.
1. Stop engine and pull wire off spark plug (Fig. 6).
2. Lift tabs at top of air cleaner cover and pivot
cover down. Clean cover thoroughly.
3. If outside of foam element is dirty, remove it
from air cleaner body. Clean thoroughly.
A. WASH foam element in a solution of liquid
soap and warm water. Squeeze to remove
dirt, but do not twist because foam may
tear. Rinse thoroughly in clear water.
B. DRY by wrapping in a clean rag. Squeeze
rag and foam element to dry.
C. SATURATE element with engine oil.
Squeeze element to remove excess oil and
to distribute oil thoroughly. A damp
element is desirable.
4. Reinstall foam element and air cleaner cover.
IMPORTANT: Do not operate engine without
air cleaner element because extreme engine
wear and damage will likely result.
Replacing Spark Plug
Use an NGK BPMR4A spark plug or equivalent.
Correct air gap is 0.032” (0.81 mm). Remove plug
after every 25 operating hours and check its
condition.
1. Stop engine and pull wire off spark plug (Fig. 6).
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 0.032” (0.81 mm) (Fig. 17). Install
correctly gapped spark plug and gasket seal.
Tighten plug firmly to 10 ft–lb (13.6 Nm).
Draining Gasoline
1. Stop engine and pull wire off spark plug (Fig. 6).
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.
Adjusting Throttle
Throttle control adjustment may be required if engine
does not start. Whenever a new throttle control cable
is installed, throttle must be adjusted.
1. Stop engine and pull wire off spark plug (Fig. 6).
2. Move throttle control to
(FAST) position.
3. Loosen cable clamp screw until throttle cable
slides (Fig. 18).
4. Check to see if holes in throttle bracket and
choke lever are aligned (Fig. 18). If not, follow
adjustment procedure in step 5.