Power Stroke PS906522MFI, Operator'S Manual

Page: 22 / 48

Page 18 — English
SPARK PLUG MAINTENANCE
See Figure 17.
The spark plug must be properly gapped and free of deposits
in order to ensure proper engine operation. To check:

Remove the spark plug cap.

Clean any dirt from around base of spark plug.

Remove spark plug using wrench (not included).

Inspect spark plug for damage, and clean with a wire
brush before reinstalling. If insulator is cracked or
chipped, spark plug should be replaced. For replacement
spark plug, see
Product Specifications earlier in this manual
or the accompanying engine manual, if applicable.

Measure plug gap. The correct gap is 0.028−0.031 in.
(0.7-0.8 mm). To widen gap, if necessary, carefully bend the
ground (top) electrode. To lessen gap, gently tap ground
electrode on a hard surface.

Seat spark plug in position; thread in by hand to prevent
cross-threading.
 Tighten with wrench to compress washer. If spark plug is
new, use 1/2 turn to compress washer appropriate amount. If
reusing old spark plug, use 1/8 to 1/4 turn for proper washer
compression.
NOTE
: An improperly tightened spark plug will become very
hot and could damage the engine.

Reinstall the spark plug cap.
CLEANING THE EXHAUST PORT AND
MUFFLER
Depending on the type of fuel used, the type and amount of
lubricant used, and/or your operating conditions, the exhaust
port and muffler may become blocked with carbon deposits. If
you notice a power loss with your gas-powered products, you
may need to remove these deposits to restore performance.
We highly recommend that only qualified service technicians
perform this service.
SPARK ARRESTOR
See Figure 18.
NOTICE:
This product is equipped with a spark arrestor that has been
evaluated by the USDA Forest Service; however, product
users must comply with Federal, State, and local fire preven-
tion regulations. Check with appropriate authorities. Contact
customer service or a qualified service center to purchase
a replacement spark arrestor.

Inspect the spark arrestor for breaks or holes. Clean or replace
if necessary.

Use a brush (not provided) to remove carbon deposits from
the spark arrestor screen as needed.
DRAINING FUEL TANK
See Figures 19 - 20.
To help prevent gum deposits in the fuel system, drain the fuel
from the tank before storing.

Turn the engine switch OFF ( O ).

Turn the fuel valve to the OFF (O ) position.


Remove the fuel line from the hose barb by squeezing the
end of the retaining clip and sliding the fuel line off.
NOTE: Make sure you are removing the fuel line that runs
between the fuel valve and the fuel filter, NOT the line that
runs between the fuel valve and the fuel tank.

Place the fuel line with fuel valve in a fuel container large
enough to catch the fuel being drained from the tank.
 Turn the fuel valve to the
ON ( l )
position.

When the fuel has drained from the tank, close the fuel valve
and reinstall fuel line securely on hose barb.
REPLACING FUEL FILTER
See Figure 21.
Occasionally the fuel filter may become clogged and need to be
replaced. To purchase a replacement fuel filter, contact customer
service or a qualified service center.
NOTE: Fuel tank must be empty before replacing fuel filter. Run
unit until tank is empty, if needed, or inspect filter prior to fill-up.
To replace:

Turn the fuel valve to the OFF ( O ) position.
 Drain the fuel tank completely.


Remove both fuel lines from the old fuel filter by squeezing
the ends of the retaining clips and sliding the fuel lines off.


Reinstall fuel lines to the new fuel filter.
  Pull on lines to make sure they are secured

Turn the fuel valve to the ON ( I ) position.
TRANSPORTING

Turn the engine switch OFF ( O ) .

Disconnect any equipment that is plugged into the generator.

Verify the fuel valve is in the OFF ( O ) position.
 Allow 30 minutes of “cool down” time before storing the
machine. Make sure engine and exhaust of unit are cool.

For security, insert the pins to secure the handles before
transporting.

Tilt the machine toward you until it balances on the wheels,
then roll the machine to the desired location.

If transporting in a vehicle, drain the fuel tank, close fuel valve,
and securely restrain the generator.
 Provide a plastic sheet or absorbent pad below the generator
to catch any drips of fuel or lubricant.
MAINTENANCE