Ryobi RGN3800A Operator's Manual page 16

NOTE: An improperly tightened spark plug will
become very hot and could damage the engine.
CLEANING THE EXHAUST PORT AND MUFFLER
Depending on the type of fuel used, the type and amount of
oil 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 petrol-powered tool, you
may need to remove these deposits to restore performance.
We highly recommend that only qualified service technicians
perform this service.
SPARK ARRESTOR
Product users in some areas must comply with fire prevention
regulations. This product is equipped with a spark arrestor
in accordance with Australian requirements.
DRAINING FUEL TANK / CARBURETOR
When not using a fuel stabiliser, draining the fuel from the
tank and carburetor before storage may help prevent gum
deposits in the fuel system.
DRAINING THE FUEL TANK
See Figure 13.
Turn the engine switch OFF ( O ).
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Close the fuel valve.
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Remove the fuel line from the barb by squeezing the
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ends of the retaining clip and sliding the fuel line off.
Install one end of a drain line over the barb, and
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place the other end in a fuel container large enough
to catch the fuel being drained from the tank.
Open the fuel valve.
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When the fuel has drained from the tank, close the
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fuel valve and reinstall fuel line on barb.
DRAINING THE CARBURETOR
See Figure 2.
Turn the engine switch OFF ( O ).
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Close the fuel valve.
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Position an approved fuel container under the
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carburetor drain screw to catch fuel; loosen the
screw.
Allow fuel to drain completely into the container.
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Retighten the drain screw.
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NOTE: After draining the fuel tank and carburetor,
start the engine and allow it to run until the unit runs
out of fuel. Consult hazardous waste management
guidelines in your area for the proper way to dispose
of fuel.
TRANSPORTING
Turn engine switch OFF ( O ).
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English
Close the fuel valve.
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Make sure engine and exhaust of unit is cool.
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Keep unit level to prevent fuel spillage.
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Do not drop or strike unit or place under heavy
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objects.
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