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ITEM 69727
S
AFETY
S
ETU
p
Op
ERA
TION
M
AINTENANCE
Air Filter Maintenance
1. Remove the Air Cleaner Cover and the air filter(s)
and check for dirt. Clean as described below.
2.
Cleaning:
• For paper filters:
To prevent injury from dust and debris,
wear ANSI-approved safety goggles,
NIOSH-approved dust mask/respirator, and
heavy-duty work gloves. In a well-ventilated
area away from bystanders, use pressurized
air to blow dust out of the filter.
• For foam filters:
Wash the filter in warm water and mild
detergent several times. Rinse. Squeeze out
excess water and allow it to dry completely.
Soak the filter in lightweight oil briefly,
then squeeze out the excess oil.
3. Install the cleaned filter(s). Secure the
Air Cleaner Cover before use.
Spark plug Maintenance
1.
Spark
plug
Cap
Disconnect spark plug cap from end of plug.
Clean out debris from around spark plug.
2.
Using a spark plug wrench, remove the spark plug.
3. Inspect the spark plug:
If the electrode is oily, clean it using a clean, dry rag.
If the electrode has deposits on it, polish it using
emery paper. If the white insulator is cracked or
chipped, the spark plug needs to be replaced.
Recommended Spark plugs
NGK
®
BP-6ES
NHSP
® /
TORCH
®
F6TC
NOTICE:
Using an incorrect spark plug
may damage the engine.
4. When installing a new spark plug,
adjust the plug’s gap to the specification on the
Specifications chart. Do not pry against the
electrode, the spark plug can be damaged.
5. Install the new spark plug or
the cleaned spark plug into the engine.
•
Gasket-style
:
Finger-tighten until the gasket
contacts the cylinder head,
then tighten about 1/2-2/3 turn more.
•
Non-gasket-style
:
Finger-tighten until the plug
contacts the cylinder head,
then tighten about 1/16 turn more.
NOTICE:
Tighten the spark plug properly.
If loose
, the spark plug will cause the
engine to overheat.
If overtightened
, the threads in the
engine block will be damaged.
6. Apply dielectric spark plug boot protector
(not included) to the end of the spark plug
and reattach the cap securely.
