16
3) Primer pump
Continue to push the primer pump until fuel enters into the primer pump. (In
general, fuel enters into the primer pump by 7 to 10 pushes.)
If the primer pump is pushed excessively, an excess of gasoline returns to
the fuel tank.
NOTE:
In case of excessive fuel intake (ooding), remove the spark plug and pull the starter handle slowly to remove excess fuel. Also, dry the •
electrode section of the spark plug.
When operating the tool with a metal blade, don’t open the throttle fully. Operating the tool with the appropriate engine speed for use of metal •
blades (around 6,000 to 8,500 rpm) will save the fuel.
On the other hand, nylon cutting heads requires full throttle for clean cut.
Carburetor
Primer Pump
4) Recoil starter
Pull the start knob gently until it is hard to pull (compression point). Then,
return the start knob, and pull it strongly.
Never pull the rope to the full. Once the start knob is pulled, never release
your hand immediately. Hold the start knob until it returns to its original
point.
5) Warm-up operation
Continue warm-up operation for 2 to 3 minutes.
B: Startup after warm-up operation
1) Push the primer pump repeatedly.
2) Keep the throttle lever at the idling position.
3) Pull the recoil starter strongly.
4) If it is difcult to start the engine, open the throttle by about 1/3.
Pay attention to the cutter blade which may rotate.
OPEN
CLOSE
At times, such as winter, when starting the engine
is difcult
Operate choke lever with the following procedure when starting engine.
After implementing startup steps 1) to 3), set choke lever to the CLOSE •
position.
Implement startup step 4) and start engine.•
Once engine starts, set choke lever to the OPEN position.•
Implement startup step 5) and complete warm up.•
CAUTION: If a bang (explosive sound) is heard and the engine stops, or the
just-started engine stalls before the choke lever is operated, return
the choke lever to the OPEN position, and pull the starter knob a
few times again to start the engine.
CAUTION: If the choke lever is left in the CLOSE position, and the starter knob
merely pulled repeatedly, too much fuel will be sucked in, and the
engine will become difcult to start.