McCulloch M B325 CB Trimmer User Manual


 
9
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,
donotattemptto fuelyourunit.Contactanau-
thorized service dealer.
FUELING ENGINE
WARNING: Remove fuel cap slowly
when refueling.
This engine is certified to operate on unleaded
petrol. Before operation, petrol must be mixed
withagoodquality 2-cycleair-cooledengineoil.
We recommend McCullochbrandoilmixed at a
ratio of 40:1 (2.5%). A 40:1 ratio is obtained by
mixing5 liters ofunleaded petrol with 0,125 liter
of oil. DO NOT USE automotive oil or boat oil.
These oils will cause engine damage. When
mixingfuel,followinstructions printedonoilcon-
tainer. Once oil is added to petrol, shake con-
tainer momentarily to assurethat thefuelisthor-
oughly 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 storage. Acidic
gas can damage the fuel system of an engine
while in storage. To avoid engine problems,
empty the fuel system before storage for 30
days or longer. Drain the gas tank, start the en-
gineandletitrununtilthefuellines andcarbure-
tor areempty. Use fresh fuel next season.Nev-
er 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/STOP
switch to the STOP position.
ON/STOP
Switch
HOW TO START YOUR UNIT
WARNING: Avoidany contact withthe
muffler. A hot muffler can cause serious burns.
STARTING A COLD ENGINE (or a
warm engine after running out of fuel)
Starting position
Muffler
Starter Handle
Start Lever
Primer Bulb
NOTE: The throttle lock--out is designed to
prevent unintentional use of the throttle trig-
ger. The lock--out must be pressed with the
palmofyourhandas yougripthethrottlehan-
dle before the trigger can be used. DO NOT
squeeze the throttle trigger until the engine
has started and runs.
1. Set unit on a flat surface.
2. Move ON/STOP switch to the ON position.
3. Slowly press the primer bulb 6 times.
4. Move the startlever tothe START position.
5. Pull starter rope handle sharply until en-
gine starts and runs.
6. Allow unit to run for 10--15 seconds, then
fully squeeze the throttle trigger to disen-
gage the starting system.
STARTING A WARM ENGINE
1. Move ON/STOP switch to the ON position.
2. Squeeze and hold the throttle trigger.
Keep throttle trigger fully squeezed until
engine runs smoothly.
3. Pull starter rope sharply while squeezing
throttle trigger until engine runs.
NOTE: Normally, thewarmstarting procedure
can be used within5 -- 10 minutes after the unit
is turned STOP. If the unit sits for more than 10
minutes withoutbeingrun,it willbenecessaryto
start the unit by following the steps under
STARTING A COLD ENGINE or following the
starting instruction steps shown on the unit.
STARTING A FLOODED ENGINE
Flooded engines can be started by placing
the ON/STOP switch in the ON position.
Move the start lever to the RUN position and
fully squeeze throttle trigger. Pull the starter
handle repeatedly while squeezing throttle
triggeruntilenginestarts andruns.This could
require pulling thestarter handle many times,