5
OPERATION
WARNING:
Be sure to read the fuel
information in the safety rules before you be-
gin. If you do not understand the safety rules,
do not attempt to fuel your unit. Contact an
authorized service dealer.
FUELING ENGINE
WARNING:
Remove fuel cap slowly
when refueling.
This engine is certified to operate on unleaded
gasoline. Before operation, gasoline must be
mixed with a good quality 2-cycle air-cooled en-
gine oil. We recommend McCulloch
®
brand oil
mixed at a ratio of 40:1 (2.5%). A 40:1 ratio is
obtained by mixing 5 liters of unleaded gasoline
with 0,125 liter of oil. DO NOT USE automotive
oil or boat oil. These oils will cause engine dam-
age. When mixing fuel, follow instructions
printed on oil container. Once oil is added to
gasoline, shake container momentarily to as-
sure that the fuel is thoroughly mixed. Always
read and follow the safety rules relating to fuel
before fueling your unit.
IMPORTANT
Experience indicates that alcohol blended
fuels (called gasohol or using ethanol or
methanol) can attract moisture which leads to
separation and formation of acids during stor-
age. Acidic gas can damage the fuel system
of an engine while in storage. To avoid engine
problems, empty the fuel system before stor-
age for 30 days or longer. Drain the gas tank,
start the engine and let it run until the fuel lines
and carburetor are empty. Use fresh fuel next
season. Never use engine or carburetor
cleaner products in the fuel tank or permanent
damage may occur.
HOW TO STOP YOUR UNIT
S
To stop the engine, move the ON/OFF
switch to the OFF position.
HOW TO START YOUR UNIT
WARNING:
The trimmer head will
turn while starting the engine. Avoid any con-
tact with the muffler. A hot muffler can cause
serious burns.
STARTING A COLD ENGINE (or a
warm engine after running out of fuel)
Starting Position
Choke
Lever
Primer Bulb
Starter Handle
Muffler
1. Set unit on a flat surface.
2. Move ON/OFF switch to the ON position.
3. Slowly press the primer bulb 6 times.
4. Move choke lever to FULL CHOKE posi-
tion.
5. Squeeze and hold trigger through
all re-
maining steps
.
6. Pull starter rope handle sharply until en-
gine sounds as if it is trying to start, but do
not pull rope more than 6 times.
7. As soon as engine sounds as if it is trying
to start, move choke lever to HALF
CHOKE.
8. Pull starter rope sharply until engine runs,
but no more than 6 pulls. If the engine
doesn’t start after 6 pulls (at the HALF
CHOKE position), move the choke lever
to the FULL CHOKE position and press
the primer bulb 6 times. Squeeze and hold
the throttle trigger and pull the starter rope
2 more times. Move the choke lever to the
HALF CHOKE position and pull the start-
er rope until the engine runs, but no more
than 6 pulls.
NOTE:
If engine still doesn’t
start, it is probably flooded. Proceed to
STARTING A FLOODED ENGINE.
9. Once the engine starts, allow it to run 10
seconds, then move the choke lever to OFF
CHOKE. Allow the unit to run for 30 more
seconds at OFF CHOKE before releasing
the throttle trigger.
NOTE:
If engine dies
with the choke lever in the OFF CHOKE
position, move the choke lever to the HALF
CHOKE position and pull the rope until en-
gine runs, but no more than 6 pulls.
STARTING A WARM ENGINE
1. Move ON/OFF switch to the ON position.
2. Move the choke lever to the HALF
CHOKE position.
3. Squeeze and hold the throttle trigger.
Keep throttle trigger fully squeezed until
the engine runs smoothly.
4. Pull starter rope sharply until engine runs,
but no more than 5 pulls.
5. Allow engine to run 15 seconds, then
move the choke lever to the OFF CHOKE
position.
NOTE:
If engine has not started, pull starter
rope 5 more pulls. If engine still does not run, it
is probably flooded.
