BLACK&DECKER BM903650 Serie Manual Del Operador página 21

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 perfor-
mance. We highly recommend that only qualified service
technicians perform this service.
SPARK ARRESTOR
See Figure 17.
The spark arrestor must be cleaned or replaced every 50
hours or yearly to ensure proper performance of your product.
Spark arrestors may be in different locations depending on
the model purchased. Please contact your nearest service
dealer for the location of the spark arrestor for your model.
To clean the spark arrestor:
 Remove the screws securing the spark arrestor in place.
 Remove the spark arrestor and gently clean using a wire
brush.
 Replace spark arrestor and secure using the screws.
DRAINING FUEL TANK/CARBURETOR
See Figures 18 - 19.
To help prevent gum deposits in the fuel system, drain the
fuel from the tank and carburetor before storing.
DRAINING THE FUEL TANK
 Turn the engine switch OFF.
 Turn the fuel valve to the OFF position.
 Remove the fuel line from the petcock by squeezing the
ends of the retaining clip and sliding the fuel line off.
 Install one end of a drain line over the petcock, and place
the other end in a fuel container large enough to catch
the fuel being drained from the tank.
 Turn the fuel valve to the ON position.
 When the fuel has drained from the tank, close the fuel
valve and reinstall fuel line on petcock.
MAINTENANCE
DRAINING THE CARBURETOR
 Turn the engine switch OFF.
 Turn the fuel valve to the OFF position.
 Position a suitable container under the carburetor drain
screw to catch fuel; loosen the screw.
 Allow fuel to drain completely into container.
 Retighten drain screw.
NOTE: Consult hazardous waste management guidelines in
your area for the proper way to dispose of used fuel.
REPLACING FUEL FILTER
See Figure 20.
Occasionally the fuel filter may become clogged and need
replacing. To purchase a replacement fuel filter contact
customer service at 1-800-726-5760.
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 position.
 Remove the fuel line from both sides of the filter by
squeezing the ends of the retaining clip with pliers.
 Slide the fuel line off.
 Replace with new fuel filter.
 Reinstall fuel lines to new fuel filter.
 Turn the fuel valve to the ON position.
TRANSPORTING
 Turn engine switch OFF.
 Turn the fuel valve to the OFF position.
 Make sure engine and exhaust of unit is cool.
 Empty the fuel tank.
 Do not drop or strike unit or place under heavy objects.
Page 17 — English