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5. If necessary, replace the paper element.
6. Reinstall the sponge-like element in the air cleaner casing and reinstall the cover.
CAUTION: running the engine with dirty, damaged or missing air cleaner element will cause the engine to wear
out prematurely.
SPARK PLUG MAINTENANCE
The spark plug is important for proper engine operation. A good spark plug should be intact, free of deposits, and
properly gaped. Refer to Recommended Maintenance Schedule. To inspect the spark plug:
1. Remove spark plug boot. Be careful not to tear insulation or wire.
2. Unscrew the spark plug from the engine using the spark plug wrench provided. There is limited space for the
wrench to turn. Use both rows of holes in the spark plug wrench to gain leverage to loosen the plug.
3. Visually inspect the spark plug for cracks or excessive electrode wear. Replace as necessary.
4. Measure the plug gap with a wire gauge. The gap should be 0.7 to 0.8 mm (0.028-0.031 in).
5. If re-using the spark plug, use a wire brush to clean any dirt from around the spark plug base then re-gap the
spark plug.
6. Screw the spark plug back into the spark plug hole using the spark plug wrench. Do not over-tighten spark
plug. Recommended tightening of spark plug is ½ to ¾ of a turn after spark plug gasket contacts spark plug
hole. Reinstall the spark plug boot.
MAINTENANCE SCHEDULE
Item
Action
Blade
Inspect
Blade
Inspect
mounting bolt
Check
Engine oil
Change
Check
Air filter
Clean
Replace
Grass bag
Check
Blade control
Check
operation
Check
Spark plug
Replace
Fuel tank
Clean
Flywheel
Check
brake pad
Valve
Check-
clearance
adjust
Fuel line
Check
1. Service more frequently when used in dusty areas.
2.Change engine oil every 25 hours when used under heavy load or in high outside air temperatures.
STORAGE
All manuals and user guides at all-guidesbox.com
Before
5 Hours of
First 25
each
use or first
hours of
use
month
use
x
x
x
x
x
x
1
x
x
Check every 2 years and replace if necessary
50 hours of
100 hours of
use or every
use or every
6 months
year
x
2
x
x
1
x
1
x
x
x
x
x
18
150 hours of use
or every two
years
x
x
x
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