Shindaiwa M231 Owner's manual

SHINDAIWA OWNER’S/OPERATOR’S MANUAL
M231 MULTIPURPOSE
TOOL CARRIER
M231
Part Number 65008-94011 Rev. 12/05
®
WARNING!
Minimize the risk of injury to yourself and others! Read this manual
and familiarize yourself with the contents. Always wear eye and
hearing protection when operating this unit.

PAGE
ContentsIntroduction
The Shindaiwa 231-series of hand-
held power tools has been designed and
built to deliver superior performance and
reliability without compromise to quality,
comfort, safety or durability.
Shindaiwa engines represent the lead-
ing edge of high-performance engine
technology, delivering exceptionally
high power with remarkably low dis-
placement and weight. As an owner/op-
erator, you’ll soon discover for yourself
why Shindaiwa is simply in a class by
itself!
Introduction............................................1
Attention Statements.............................2
General Safety Instructions..................3
Safety Labels..........................................4
Operating Precautions..........................5
Product Description..............................6
Specifications.........................................7
Assembly ...............................................8
Installing a Tool Attachment................9
Mixing Engine Fuel.............................10
Starting the Engine.............................11
Stopping the Engine............................13
Adjusting Engine Idle..........................13
Checking Unit Condition....................14
Shoulder Strap......................................14
Maintenance.........................................15
Long Term Storage..............................19
Troubleshooting Guide.......................20
Emission System Warranty.................24
1
IMPORTANT!
The information contained in these
instructions describes units available
at the time of publication.
Shindaiwa Inc. reserves the right
to make changes to products without
prior notice, and without obligation to
make alterations to units previously
manufactured.
WARNING!
The engine exhaust from this
product contains chemicals known
to the State of California to cause
cancer, birth defects or other repro-
ductive harm.

IMPORTANT!
The operational procedures described
in this manual are intended to help you
get the most from your unit as well as
to protect you and others from harm.
These procedures are guidelines for
safe operation under most conditions,
and are not intended to replace any
safety rules and/or laws that may be in
force in your area. If you have questions
regarding your 231-series power tool,
or if you do not understand something
in this manual, your Shindaiwa dealer
will be glad to assist you. You may also
contact Shindaiwa, Inc. at the address
printed on the back of this manual.
SAFETY
2
Throughout this manual are special
“attention statements”.
WARNING!
A statement preceded by the
triangular attention symbol and the
word “WARNING” contains infor-
mation that should be acted upon
to prevent serious bodily injury.
CAUTION!
A statement preceded by the word
“CAUTION” contains information
that should be acted upon to pre-
vent mechanical damage.
Attention Statements
IMPORTANT!
A statement preceded by the word
“IMPORTANT” is one that possesses
special significance.
NOTE:
A statement preceded by the word
“NOTE” contains information that is
handy to know and may make your job
easier.
Read and follow this manual, make
sure anyone using the trimmer does
likewise. Failure to do so could result
in serious personal injury or machine
failure. Keep this manual for future
reference.
Always wear a hard hat to reduce the
risk of head injuries during operation
of this machine. In addition, always
wear eye and hearing protection.
Shindaiwa recommends wearing a
face shield as additional face and eye
protection.
Wear heavy duty, non-slip gloves.
Safety tip shoes or boots with non-slip
sole should be worn.
This product conducts electricity.
Keep the product and/or operator
a minimum distance of 15 feet (4.5
meters) away from electrical sources
and power lines.
Keep bystanders at least 50 feet (15
meters) away from the operating trim-
mer to reduce the risk of being struck
by falling objects or thrown debris.
The blades / cutting attachments are
SHARP! Handle with care.
Be aware of the danger of falling
debris.

SAFETY
3
Work Safely
Attachments for this M231 Multipurpose
Tool Carrier operate at very high speeds
and can do serious damage or injury if
they are misused or abused. Never allow
a person without training or instruction to
operate your unit!
WARNING!
Use Good Judgment
ALWAYS wear eye protection to
shield against thrown objects.
ALWAYS protect yourself from
hazards such as thorny brush
and ying debris by wearing
gloves and close tting cloth-
ing that covers arms and legs.
Never wear shorts. Don’t wear
loose clothing or items such as
jewelry that could get caught
in machinery or underbrush.
Secure long hair so it is above
shoulder level.
NEVER run the engine when
transporting the unit.
NEVER operate the engine in-
doors! Make sure there is always
good ventilation. Fumes from
engine exhaust can cause seri-
ous injury or death.
ALWAYS clear your work area
of trash or hidden debris that
could be thrown back at you or
toward a bystander.
ALWAYS use the proper cutting
tool for the job.
ALWAYS stop the unit im-
mediately if it suddenly begins
to vibrate or shake. Inspect for
broken, missing or improperly
installed parts or attachments.
ALWAYS keep the unit as clean
as practical. Keep it free of loose
vegetation, mud, etc.
ALWAYS hold the unit rmly
with both hands when cutting or
trimming, and maintain control at
all times.
ALWAYS keep the handles
clean.
ALWAYS disconnect the spark
plug wire before performing any
maintenance work.
Stay Alert
You must be physically and mentally fit
to operate this unit safely.
General Safety Instructions
WARNING!
Never make unauthorized
attachment installations.
WARNING!
Never operate power equipment of
any kind if you are tired or if you are
under the inuence of alcohol, drugs,
medication or any other substance that
could affect your ability or judgement.
DO NOT OPERATE THIS UNIT�
IF YOU ARE TIRED, ILL OR�
UNDER THE INFLUENCE OF�
ALCOHOL, DRUGS, OR�
MEDICATION.�
�
�
�
�
WARNING!
Minimize the Risk of Fire
NEVER smoke or light res near
the engine.
ALWAYS stop the engine and allow
it to cool before refueling. Avoid
overlling and wipe off any fuel that
may have spilled.
ALWAYS inspect the unit for fuel
leaks before each use. During each
rell, check that no fuel leaks from
around the fuel cap and/or fuel tank.
If fuel leaks are evident, stop using
the unit immediately. Fuel leaks must
be repaired before using the unit.
ALWAYS move the unit to a place
well away from a fuel storage area
or other readily ammable materials
before starting the engine.
NEVER place ammable material
close to the engine mufer.
NEVER run the engine without the
spark arrester screen in place.

Safety Labels
Figure 1
IMPORTANT!
Safety and Operation Information
Labels: Make sure all information
labels are undamaged and readable.
Immediately replace damaged or miss-
ing information labels. New labels are
available from your local authorized
Shindaiwa dealer.
M231
SAFETY
4

CAUTION!
Operating Precautions
Always make sure the cutting
attachment tool is properly
installed and rmly tightened
before operation.
Never use a cracked or warped
cutting attachment: replace
it with a serviceable one and
make sure it ts properly.
Keep the unit away from exces-
sive heat. Engine fuel is very
ammable and re could lead
to serious personal injury or
property damage.
Make sure there are no missing
or loose fasteners, and that the
stop switch and throttle controls
are working properly.
WARNING!
Before starting the engine,
make sure the cutting attach-
ment is not contacting anything.
Always stop the engine imme-
diately and check for damage
if you strike a foreign object or
if the unit becomes tangled.
Do not operate with broken or
damaged equipment.
Never transport the unit or set it
down with the engine running.
An engine that’s running could
be accidently accelerated caus-
ing the cutting attachment to
rotate.
Make sure cutter safety guards
are in place when transporting
the unit.
Never extend trimming line beyond
the length specied for your unit.
Always keep the unit as clean
as practical. Keep it free of loose
vegetation, mud, etc.
SAFETY
5

Product Description
M231 Multipurpose
Tool Carrier
Outer Tube
Fuel Tank
Grip
Using the accompanying illustrations
as a guide, familiarize yourself with
your unit and its various components.
Understanding your unit helps ensure
top performance, long service life, and
safer operation. See Figure 2 and 2a.
Handle
Coupler
Throttle
Trigger
Throttle Lockout
Lever
Tank Guard
Figure 2
Ignition
Switch
Air Cleaner
Spark Plug
M23002a
Coupler Screw Knob
Latch
Latch protector
Figure 2a
6
DESCRIPTION
WARNING!
Do not make unauthorized modi-
cations or alterations to any of
these units or their components.

Specications
M231 Multipurpose Tool Carrier dry weight (less attachments) ...... 4.5 kg/9.8 lb.
Engine model ................................................................................. Shindaiwa S230C
Engine type........................................................2-cycle,vertical-cylinder, air-cooled
Bore x stroke...................................................................32 x 28 mm/1.26 x 1.10 in.
Displacement .................................................................................22.5 cc/1.4 cu. in.
Maximum power ............................................... 0.8 kW/1.1 HP@ 7500 rpm (min-1)
Fuel/oil ratio........... 50:1 with ISO-L-EGD or JASO FC class 2-cycle Mixing Oil*
Fuel tank capacity ..............................................................................670 ml/22.7 oz.
Carburetor type ................................................... Walbro WYL-122 diaphragm-type
Muffler ............................................................................................. 2-Stage, Catalyst
Ignition ...................................................One-piece electronic transistor-controlled
Spark plug............................................................................................Champion CJ8
for EMC compliance use NGK BMR6A
Air cleaner type ............................................ Non-reversible flocked filter element
Starting method ................................................................................................ Recoil
Stopping method ..................................................................................... Slide switch
Transmission type....................................................... Automatic centrifugal clutch
Optional Assessories ..........................................................................Shoulder strap
EPA Emission Compliance Period* ....................................................... Category A
* The EPA emission compliance referred to on the emission compliance label located on
the engine, indicates the number of operating hours for which the engine has been shown
to meet Federal emission requirements. Category C = 50 hours (Moderate), B = 125 hours
(Intermediate) and A = 300 hours (Extended).
Prior to Assembly
Before assembling, make sure you
have all the components required for a
complete unit:
Engine/Outer tube assembly
Handle
Kit containing handle mounting
bracket and hardware, this owner’s/
operator’s manual and tool kit for
routine maintenance. Tool kits vary
by model and may include a hex
wrench, spark plug/screwdriver
combination wrench, and spanner
wrench.
Specifications are subject to change without notice.
Carefully inspect all components for
damage.
7
DESCRIPTION
meets or exceeds these specifications and is recommended for all Shindaiwa products.
IMPORTANT!
The terms “left”, “left-hand”, and “LH”;
“right”, “right-hand”, and “RH”; “front”
and “rear” refer to directions as viewed
by the operator during normal
operation.

Handle
Connect the Handle to the Outer Tube.
1. Position the handle on the outer
tube as shown. See Figure 3.
2. Install the mounting bracket
with the socket head cap screws.
Tighten the screws finger-tight
ONLY at this time.
3. Locate the handle in the best
position for operator comfort (usu-
ally about 10 inches ahead of the
throttle assembly).
4. Secure the handle by alternately
tightening the four socket-head
screws in a diagonal or “criss-cross”
fashion.
Outer Tube
Socket-head Cap-
screws
Handle
Mounting Bracket
Throttle As-
sembly
Figure 3
8
ASSEMBLY
Assembly

�
M23006
M23005
�M23004
Installing a Tool Attachment
1. Place the M231 Multipurpose Tool
Carrier and the Tool Assembly on
a clean, flat surface so that both
assemblies fit end to end. The M231
assembly should be facing up, and
the tool assembly should be posi-
tioned with the locking hole in the
tube end facing up. See Figure 4.
Tool As-
sembly
M231 Tube As-
sembly
Coupler
Latch
Coupler
Screw
Knob
Locking Hole
Latch Protector
(extended)
Latch Protector
(lowered)
Coupler Screw
Knob
Coupler
Press
Latch
Figure 4
Figure 5
Figure 6
ASSEMBLY
9
Removing a Tool Attachment
1. With the unit on a clean, flat sur-
face, loosen the coupler screw knob.
The spring-loaded coupler protector
should pop up.
2. Press down on the latch with your
finger or thumb. This releases the
coupler lock. See Figure 6.
3. Pull the tool assembly out of the
coupler.
CAUTION!
Keep the open ends of the tubes
clean and free of impurities!
2. Slip off the protective covers from
the ends of both tubes, and loosen
the coupler screw knob.
3. Insert the upper tube assembly
into the coupler, with the tool decal
facing up, until the line of the decal
is flush with the end of the coupler.
Twist the tool back and forth until
you are sure it snaps in place by the
coupler latch. See Figure 4.
4. When the two tube halves are
locked together, press down on the
spring-loaded latch protector and
tighten the coupler screw knob.
See Figure 5.

10
OPERATION
Mixing Fuel Filling the Fuel Tank
CAUTION!
This engine is designed to operate on
a 50:1 mixture consisting of unleaded
gasoline and ISO-L-EGD or JASO FC
class 2-cycle mixing oil only. Use of
non-approved mixing oils can lead to
excessive carbon deposits.
CAUTION!
Some types of gasoline con-
tain alcohol as an oxygenate.
Oxygenated gasoline may cause
increased operating temperatures.
Under certain conditions, alcohol-
based gasoline may also reduce
the lubricating qualities of some
2-cycle mixing oils. Never use
any type of gasoline containing
more than 10% alcohol by volume!
Generic oils and some outboard
oils may not be intended for use
in high-performance 2-cycle type
engines, and should never be used
in your Shindaiwa engine.
Use only fresh, clean unleaded
gasoline with a pump octane of 87
or higher.
Mix all fuel with a 2-cycle air-cooled
mixing oil that meets or exceeds
ISO-L-EGD and/or JASO FC classi-
fied oils at 50:1 gasoline/oil ratio.
Examples of 50:1 mixing quantities
 1 gallon of gasoline to 2.6 oz. mixing oil
 5 liters of gasoline to 100 ml. mixing oil
IMPORTANT!
Mix only enough fuel for your immedi-
ate needs! If fuel must be stored longer
than 30 days and oil with fuel
stabilizer is not used, it should first be
treated with a fuel stabilizer such as
StaBil™.
Oil is a registered JASO FC
classified oil and also meets or exceeds
ISO-L-EGD performance requirements.
Shindaiwa One is recommended for
use in all Shindaiwa low emissions en-
gines. Shindaiwa One also includes
a fuel stabilizer.
1. Place the unit on a flat, level surface.
2. Clear any dirt or other debris from
around the fuel filler cap.
3. Remove the fuel cap, and fill the tank
with clean, fresh fuel.
4. Reinstall the fuel filler cap and
tighten firmly.
WARNING!
Minimize the risk of re!
 STOP engine before refueling.
 ALWAYS allow the engine to
cool before refueling!
 Wipe all spilled fuel and move
the engine at least 10 feet (3
meters) from the fueling point
and source before restarting!
 NEVER start or operate this
unit if there is a fuel leak.
 NEVER start or operate this
unit if the carburetor, fuel lines,
fuel tank and/or fuel tank cap
are damaged.
 NEVER smoke or light any res
near the engine or fuel source!
 NEVER place any ammable
material near the engine mufer!
 NEVER operate the engine with-
out the mufer and spark arrester
in good working condition.

11
OPERATION
23122
Starting the Engine
4. While holding the outer tube firmly
with one hand, slowly pull the recoil
starter handle until resistance is felt,
then pull quickly to start the engine.
1. Slide the ignition switch to the “I”
position (engine ON).
2. Press the primer bulb until fuel can
be seen flowing in the transparent
return tube.
3. Set the choke lever to the CLOSED
position if engine is cold.
Make sure the
cutting head
is clear of ob-
structions!
Primer Bulb
Return Tube
IMPORTANT!
Engine ignition is controlled by a two position switch mounted on the throttle
housing labeled: “I” for ON or START and “O” for OFF or STOP.
Figure 7 Figure 9
Figure 8 Figure 10
IMPORTANT!
The primer system only pushes fuel
through the carburetor. Repeatedly
pressing the primer bulb will not flood
the engine with fuel.
CAUTION!
Do not pull the recoil starter to the
end of the rope travel. Pulling the
recoil starter to the end of the rope
travel can damage the starter.

23122
OPERATION
12
Starting the Engine (Continued)
WARNING!
Never start the engine from the
operating position.
WARNING!
The cutting attachment may
rotate when the engine is started!
When the Engine Starts...
After the engine starts, allow the
engine to warm up at idle 2 or 3
minutes before operating the unit.
After the engine is warm, pick
up the unit and clip on the harness
if so equipped. See page 14.
Advancing the throttle makes the
cutting attachment turn faster;
releasing the throttle permits the
attachment to stop turning. If the
cutting attachment continues to
rotate when the engine returns to
idle, carburetor idle speed should
be adjusted (see the next page).
IMPORTANT!
If the engine fails to start after several
attempts with the choke in the closed
position, the engine may be flooded
with fuel. If flooding is suspected,
move the choke lever to the open
position and repeatedly pull the recoil
starter to remove excess fuel and start
the engine. If the engine still fails to
start, refer to the troubleshooting sec-
tion of this manual.
5. When the engine starts, slowly
move the choke lever to the
“OPEN” position. See Figure 11.
(If the engine stops after the initial
start, close the choke and restart.)
Figure 11
Open

OPERATION
13
Idle the engine briefly before stopping
(about 2 minutes), then slide the igni-
tion switch to the “O” (engine OFF)
position. See Figure 12.
Stopping the Engine Adjusting Engine Idle
Idle Adjusting
Screw
Figure 12 Figure 13
Slower
Faster
The engine must return to idle speed
whenever the throttle lever is released.
Idle speed is adjustable, and must be set
low enough to permit the engine clutch
to disengage the cutting attachment.
WARNING!
The cutting attachment must
NEVER rotate at engine idle! If
the idle speed cannot be adjusted
by the procedure described here,
return the unit to your Shindaiwa
dealer for inspection.
Idle Speed Adjustment
1. Place the unit on the ground, then
start the engine and allow it to idle
2-3 minutes until warm.
2. If the attachment rotates when the
engine is at idle, reduce the idle
speed by turning the idle adjust-
ment screw counter-clockwise.
See Figure 13.
3. If a tachometer is available, the engine
idle speed should be final adjusted to
2,750 (±250) rpm (min-1).
4. Carburetor fuel mixture adjust-
ments are preset at factory and
cannot be serviced in the field.

Checking Unit Condition
Use only authorized Shindaiwa parts
and accessories with your Shindaiwa
unit. Do not make modifications to
your unit without the written approval
of Shindaiwa, Inc.
ALWAYS make sure the tool is
properly installed and firmly tightened
before operation.
NEVER use a cracked or warped
cutting attachment: replace it with a
serviceable one.
ALWAYS make sure the cutting at-
tachment fits properly into the appro-
priate cutting attachment holder. If a
properly installed attachment vibrates,
replace the attachment with a new one
and re-check.
ALWAYS stop the engine immediate-
ly and check for damage if you strike
a foreign object or if the unit becomes
entangled. Do not operate with broken
or damaged equipment.
NEVER allow the engine to run at
high RPM without a load. Doing so
could damage the engine.
NEVER operate a unit with worn
or damaged fasteners or
attachment holders.
NEVER operate the unit with the
cutting attachment shield or other
protective devices (ignition switch etc.)
removed!
Shoulder Strap
OPERATION
14
Adjust the shoulder strap so the
shoulder pad rests comfortably on the
off-side shoulder with the cutting at-
tachment parallel to the ground. Make
sure all hooks and adjusting devices
are secure.
Figure 14
Optional Accessories
Shoulder Strap.......... P/N 22410-17202
Hanger....................... P/N 22410-12210
Hanger Bolt .............. P/N 01020-05120
Hanger Nut ............... P/N 01500-05041
WARNING!
A cutting attachment shield or other
protective device is no guarantee
of protection against ricochet.
YOU MUST ALWAYS GUARD
AGAINST FLYING DEBRIS!
NOTE:
Although not required for use with
Multipurpose Tool Carrier, an optional
shoulder strap can increase operator
comfort during extended periods of
operation.

MAINTENANCE
IMPORTANT!
MAINTENANCE, REPLACEMENT
OR REPAIR OF EMISSION
CONTROL DEVICES AND
SYSTEMS MAY BE PERFORMED
BY ANY REPAIR ESTABLISHMENT
OR INDIVIDUAL; HOWEVER,
WARRANTY REPAIRS MUST BE
PERFORMED BY A DEALER OR
SERVICE CENTER AUTHORIZED
BY SHINDAIWA KOGYO CO.,
LTD. THE USE OF PARTS THAT
ARE NOT EQUIVALENT IN
PERFORMANCE AND DURABILITY
TO AUTHORIZED PARTS MAY
IMPAIR THE EFFECTIVENESS OF
THE EMISSION CONTROL SYSTEM
AND MAY HAVE A BEARING ON
THE OUTCOME OF A WARRANTY
CLAIM.
General Maintenance
Mufer
This unit must never be operated with
a faulty or missing spark arrester or
muffler. Make sure the muffler is well
secured and in good condition. A worn
or damaged muffler is a fire hazard
and may also cause hearing loss.
Spark Plug
Keep the spark plug and wire connec-
tions tight and clean.
Fasteners
Make sure nuts, bolts, and screws
(except carburetor adjusting screws)
are tight.
15
MAINTENANCE
WARNING!
Before performing any mainte-
nance, repair or cleaning work on
the unit, make sure the engine and
cutting attachment are completely
stopped. Disconnect the spark plug
wire before performing service or
maintnenance work.
WARNING!
Non-standard parts may not oper-
ate properly with your unit and may
cause damage and lead to per-
sonal injury.
NOTE:
Using non-standard replacement parts
could invalidate your Shindaiwa warranty.
Daily Maintenance
Prior to each work day, perform the
following:
 Remove dirt or debris from the en-
gine, check the cooling fins and air
cleaner for clogging and clean them
as necessary.
 Carefully remove any accumulation
of dirt or debris from the muffler or
the fuel tank. Dirt build-up in these
areas could cause engine overheat-
ing, induce premature wear, or
create a fire hazard.
 Check for loose or missing screws
or components. Make sure the
cutting attachment is securely fas-
tened.
Check the entire unit for leaking
fuel or grease.

M23016
10-Hour Maintenance
Every 10 to 15 hours of opera-
tion: Remove and clean the spark
plug. Adjust the spark plug electrode
gap to 0.024-inch (0.6 mm). If the
plug must be replaced, use only a
Champion CJ8 or equivalent type spark
plug of the correct heat range. For
Electromagnetic Compliance (EMC)
use NGK BMR6A. See Figure 16.
CAUTION!
Before removing the spark plug,
clean the area around the plug to
prevent dirt and debris from falling
into internal engine parts.
Clean the spark plug
and check the gap at
the electrode.
Every 10 hours of operation
(more frequently in dusty or
dirty conditions):
Remove the air cleaner element from
the carburetor and clean it thoroughly
with soap and water or compressed
air. Let dry before reassembling the
element. See Figure 15.
CAUTION!
Do not operate the unit if the air
cleaner or element is damaged, or
if the element is wet.
10/15-Hour Maintenance
0.024 inch
(0.6 mm)
Figure 16
Loosen Knob Remove and clean or
replace the element
Figure 15
MAINTENANCE
16

23138
50-hour Maintenance
Every 50 hours of operation
(more frequently in dusty or dirty
conditions):
Remove and clean the cylinder
cover and clean grass and dirt from
the cylinder fins.
Use a hooked wire to extract the
fuel filter from inside the fuel tank.
See Figure 17. Remove and replace
the filter element. Before reinstall-
ing the filter, inspect the condi-
tion of the fuel line. If damage or
deterioration are noted, the M231
Multipurpose Tool Carrier should
be removed from service until it can
be inspected by a Shindaiwa-trained
service technician. Filter Element
Hooked
Wire
Figure 17
CAUTION!
Make sure you do not pierce the
fuel line with the end of the hooked
wire, the line is delicate and can be
damaged easily.
MAINTENANCE
17

23139
135-hour Maintenace
Every 135 hours of operation,
remove and clean the mufer.
5. Remove the rear muffler shield
socket head screw and, while noting
the orientation of parts, separate the
muffler shield. See Figure 18.
6. Remove the spark arrester screen
and clean with a stiff bristle brush.
7. Gently tap the muffler on a wood
surface to dislodge any loose car-
bon.
8. Inspect the cylinder exhaust port
for carbon buildup.
9. Reassemble the muffler in the
reverse order of disassembly.
Forward
Muffler
Shield
Lower Muffler
Screw
Muffler
5 mm Muffler
Screws
Rear Muffler
Shield Spark Ar-
rester Screen
Rear Muffler
Shield Screw
Figure 18
MAINTENANCE
18
IMPORTANT!
If you note excessive carbon buildup,
consult with an authorized servicing
dealer.
WARNING!
Never operate the unit with a dam-
aged or missing mufer or spark
arrester! Operating with missing or
damaged exhaust components is a
re hazard and could also damage
your hearing.
1. Remove the spark plug boot.
2. Remove the two 4 mm engine cover
screws (located at the top of the
recoil housing).
3. Loosen the 5 mm engine top cover
screw (the screw is captive) and lift
the cover from the engine.
4. Remove the two 5 mm muffler
screws. Remove the lower muffler
screw, then lift the muffler assem-
bly from the engine.

Long Term Storage
Whenever the unit will not be used for
30 days or longer, use the following
procedures to prepare it for storage:
Clean external parts thoroughly
and apply a light coating of oil to all
metal surfaces.
Drain all the fuel from the fuel tank.
MAINTENANCE
19
To remove the remaining fuel from the
fuel lines and carburetor and with the
fuel drained from the fuel tank:
1. Prime the primer bulb until no more
fuel is passing through.
2. Start and run the engine until it
stops running.
3. Repeat steps 1 and 2 until the en-
gine will no longer start.
Remove the spark plug and pour
about 1/4 ounce of 2-cycle mixing
oil into the cylinder through the
spark plug hole. Slowly pull the
recoil starter 2 or 3 times so oil
will evenly coat the interior of the
engine. Reinstall the spark plug.
Before storing the unit, repair or
replace any worn or damaged parts.
Remove the air cleaner element
from the carburetor and clean it
thoroughly with soap and water. Let
dry and reassemble the element.
Store the unit in a clean, dust-
free area.
IMPORTANT!
All stored fuels should be stabilized
with a fuel stabilizer such as STA-BIL™,
if oil with fuel stabilizer is not
used.
CAUTION!
Gasoline stored in the carburetor
for extended periods can cause
hard starting and could also lead
to increased service and mainte-
nance cost.