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11Section 6 — Maintenance
Fuel Filter Service
The fuel filter cannot be cleaned and should be
replaced every 100 operating hours; more often
if run with old gasoline.
1. Remove all fuel from tank by running
engine until it stops from lack of fuel.
2. Use pliers to squeeze tabs on the clamps,
then slide the clamps away from the fuel
filter. See Figure 6-11.
Fuel Filter
Fuel Line
Tab
Clamp
Figure 6-11
3. Twist and pull the fuel lines off of the
fuel filter.
4. Replace with a new fuel filter.
5. Secure the fuel lines with the clamps.
Clean Engine
If the engine has been running, allow it to
cool for at least half an hour before cleaning.
Periodically remove dirt build-up from engine.
Clean cooling fins every 25 hours. Clean with a
brush or compressed air.
IMPORTANT: Do not spray engine with water
to clean because water could contaminate
fuel. Using a garden hose or pressure washing
equipment can also force water into the air
cleaner or muffler opening. Water in the air
cleaner will soak the paper element, and water
that passes through the element or muffler can
enter the cylinder, causing damage.
WARNING!
Accumulation of debris around muffler could cause
a fire. Inspect and clean before every use.
Storage
CAUTION
Failure to use a fuel stabilizing additive or
completely run the engine until it’s out of fuel
before off-season storage may result in damage
to your engine’s carburetor. Subsequent damage
would not be covered under the manufacturer’s
warranty.
Gasoline that will be stored longer than 30
days needs to be pre-treated upon purchase
with fuel stabilizer to prevent gum and varnish
from forming in the engines fuel and intake
system. Improper fuel storage can result in
hard starting, no starting, stalling and poor
performance. If the gasoline in your engine
deteriorates during storage, you may need
to have the carburetor, and other fuel system
components, serviced or replaced.
1. Remove all fuel from tank by running
engine until it stops from lack of fuel.
WARNING!
Never leave engine unattended while running.
2. Change oil. See Oil Change section.
3. Remove spark plug and pour about 1/2
an ounce of engine oil into cylinder.
Replace spark plug and crank slowly to
distribute oil.
4. Clean debris from around engine, under
finger guard, and under, around and
behind muffler. Touch up any damaged
paint, and coat other areas that may rust
with a light film of oil.
5. Store in a clean, dry and well ventilated
area away from any appliance that
operates with a flame or pilot light, such
as a furnace, water heater, or clothes
dryer. Also avoid any area with a spark
producing electric motor, or where power
tools are operated.
6. If possible, also avoid storage areas with
high humidity, because that promotes
rust and corrosion.
7. Keep the engine level in storage. Tilting
can cause fuel or oil leakage.
Removing From Storage
1. Check your engine as described in the
Pre-Operation Check section of this
manual. Check for debris under blower
housing.
2. If the fuel was drained during storage
preparation, fill the tank with fresh
gasoline. If you keep a container of
gasoline for refueling, make certain it
contains only fresh fuel. Gasoline oxidizes
and deteriorates over time, causing hard
starting.
3. If the cylinder was coated with oil during
storage preparation, the engine will
smoke briefly at startup. This is normal.
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