PRIMARY MAINTENANCE
Generally, wash foam-type filters
In a dishwashlng detergent and
water solution. Rinse and wring
dry, then saturate with oil and
squeeze out excess. Failure to
re-oil this type filter will ruin the
engine.
Clean paper elements by tapping
lightly. Blowing with air will
rupture paper elements.
Use a flashlight to detect clogged
or torn paper elements - replace If
damaged in any way.
Air is also needed to keep
your engine cool. Dirt, dust
& debris build up to restrict
and clog cooling air Intake
screens and fins. Clean
screens and fins at frequent
Intervals. The engine blower
housing and shrouds should
be removed at least once
each season or more often
under dry, dusty conditions
for a thorough cleaning of
fins.
Failure to keep external
surfaces clean not only
presents fire hazards, but
causes overheating and
resulting engine damages
such as:
1. distorted valve guides
2. sticking valves
° o. 3. scuffed, scored
.,,_. walls
4. overspeedlng
5. loss of power
6. complete failure of
engine.
Dirt can also be Introduced
Into an engine In dirty fuel
from a contaminated
container. Always use clean
fresh fuel from a clean
container to guard against
dirt, sludge and water
contamination.
Be aware that fuel breaks
down in storage and forms
gummy compounds which
will block carburetor pass-
ages. Never use fuel more
than 3 months old. Drain
tank then run the engine out
of fuel before storing during
the off-season.
An engine must also have proper lubrication.
All englnes use some oli. On 4-cycle englnes,
CHECK OIL LEVEL BEFORE EACH START-UP.
Wlpe area clean around the oli check plug or
dlpstlck opening to keep dlrt from falllng Into
the englne when checklng the oli. Always
check wlth the machlne on a level surface.
On englnes wlth dlpstlck, keep the level up to,
but not over, the FULL mark. When addlng oli,
allow tlme for all of the oli to flow down the fill
tube to prevent a false full readlng when the
level could actually be low and result In englne
damage.
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