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Installing the Threaded Fuel Filler Cap
WARNING
￭
￭ An improperly tightened fuel filler cap can loosen or come
off and spill quantities of fuel. To reduce the risk of fuel
spillage and fire from an improperly installed fuel cap,
correctly position and tighten the cap by hand with as
much force as possible.
Damaged or Broken Cap
WARNING
￭ If your fuel cap does not tighten properly, it may be
damaged or broken. Stop using the blower and take it to
your authorized STIHL dealer for repair.
Vapor Lock
WARNING
￭ Vapor lock occurs when fuel in the fuel line or carburetor
vaporizes, causing bubbles to block the free flow of liquid
fuel into the carburetor.
￭ Vapor lock cannot be relieved or affected by opening the
fuel tank. Removing the fuel filler cap without first allowing
the blower to cool adequately can result in fuel spraying.
Always follow the instructions in this section when
removing the fuel cap.
10
5 IMPORTANT SAFETY INSTRUCTIONS
￭ To relieve vapor lock:
– Press the manual fuel pump bulb at least 20 to 30
times – even if the bulb is already filled with fuel – to
clear the vapor and send liquid fuel into the
carburetor. Then start the blower. For specific
starting instructions, see the appropriate section of
your instruction manual.
– If the manual fuel pump bulb will not be filled, place
the Choke Knob to the
starter cord until the engine runs.
– If your blower will not restart, or if vapor lock occurs
again, the blower is being used in conditions too
extreme for the fuel being used. Discontinue use and
let the engine cool completely before attempting to
start the blower.
– Using good quality, fresh fuel (stored less than 30
days) also can help reduce the occurrence of vapor
lock.
5.6
Starting
WARNING
￭ To reduce the risk of burns and other personal injury from
escaping gas vapor and fumes:
– Move at least 10 ft. (3 m) from the fueling spot before
starting the engine.
– Start your blower only outdoors.
￭ To reduce the risk of serious or fatal injuries to the
operator or bystanders from loss of control:
– Start the blower only as described in the "Starting"
chapter in this manual, @ 11.
– When you pull the starter grip, do not wrap the
starter rope around your hand.
– Do not let the grip snap back. Guide the starter rope
to rewind it properly.
– Once the engine has started, immediately blip the
throttle trigger, which should cause the choke knob
to move to the run position and allow the engine to
slow down to idle.
position and pull the
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