McCulloch MC125 - Manual (Page 10)

10
OPERATION
KNOW YOUR UNIT
READ THIS INSTRUCTION MANUAL AND SAFETY RULES BEFORE OPERATING YOUR UNIT.
Compare the illustrations with your unit to familiarize yourself with the location of the various controls
and adjustments. Save this manual for future reference.
Line Limiter
Blade
Primer Bulb
Assist Handle
Throttle Trigger
Start
Lever
Spark
Plug
Shield
Trimmer
Head
Shaft
Muffler
ON/STOP
Switch
Coupler
Starter handle
ON/STOP SWITCH
The ON/STOP switch is located on the trigger
handle and is used to stop the engine. To stop
the engine, push and release the engine
ON/STOP switch.
PRIMER BULB
The PRIMER BULB removes air from the car-
buretor and fuel lines and fills them with fuel.
This allows you to start the engine with fewer
pulls on the starter rope. Activate the primer
bulb by pressing it and allowing it to return to
its original form.
START LEVER
The START LEVER helps to supply fuel to the
engine to aid in starting. Activate the starting
system by moving the start lever to the START
position. DO NOT squeeze the throttle trigger
until the engine has started and runs. After the
engine starts, allow the engine to warm--up
10--15 seconds, then fully squeeze the throttle
trigger to deactivate the starting system.
COUPLER
The COUPLER enables optional attach-
ments to be installed on the unit.
BEFORE STARTING ENGINE
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. Call
1-800-554-6723.
FUELING ENGINE
WARNING:
Remove fuel cap slowly
when refueling.
HELPFUL TIP
To obtain the correct oil mix
ratio, pour 3.2 ounces of
2--cycle synthetic oil into
one gallon of fresh gas.
This engine is certified to operate on un-
leaded gasoline. Before operation, gasoline
must be mixed with a good quality synthetic
2-cycle air-cooled engine oil designed to be
mixed at a ratio of 40:1. A 40:1 ratio is ob-
tained by mixing 3.2 fluid ounces (95 ml) of oil
with 1 gallon (4 liters) of unleaded gasoline.
Pour the entire contents of the 3.2 ounce (95
ml) container of oil into 1 gallon (4 liters) of
gasoline to achieve the proper fuel mixture.
DO NOT USE automotive or marine oil.
These oils will cause engine damage. When
mixing fuel follow the instructions printed on
the container. Once oil is added to gasoline,
shake container momentarily to assure that
the fuel is thoroughly mixed. Always read and
follow the safety rules relating to fuel before
fueling your unit.
CAUTION: Never use straight gasoline in
your unit. This will cause permanent engine
damage and void the limited warranty.
FUEL REQUIREMENTS
This engine requires the use of minimum 87
octane [R+M]/2 clean gasoline.