Shindaiwa M242/EVC Owner's/operator's Manual
ENGLISH
SHINDAIWA OWNER’S/OPERATOR’S MANUAL
M242/EVC
MULTIPURPOSE
TOOL CARRIER
Part Number 65025-94311 Rev. 10/07
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.
WARNING!
M242
English.......................1
Español..............SP_1
Françias.............FR_1
2
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 242-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.
PAGE
Contents
Introduction
The Shindaiwa 242-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 leading
edge of high-performance engine technology, delivering exceptionally high power with
remarkably low displacement and weight. As
an owner/operator, you’ll soon discover for
yourself why Shindaiwa is simply in a class by
itself!
Introduction....................................................2
Attention Statements.....................................2
General Safety Instructions..........................3
Safety Labels..................................................4
Operating Precautions..................................4
Product Description......................................5
Specifications.................................................5
Handle Assembly ..........................................6
Installing a Tool Attachment.........................6
Mixing Fuel....................................................7
Starting the Engine........................................8
Stopping the Engine......................................8
Adjusting Engine Idle....................................9
Checking Unit Condition..............................9
Maintenance.................................................10
Long Term Storage.......................................11
Troubleshooting Guide...............................12
Emission System Warranty.........................15
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 reproductive harm.
Throughout this manual are special “attention statements”.
WARNING!
A statement preceded by the triangular attention symbol and the word
“WARNING” contains information 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 prevent 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 trimmer 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.
3
Work Safely
Attachments for this M242 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 clothing 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 indoors!
Make sure there is always good ventilation. Fumes from engine exhaust
can cause serious 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 immediately
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
inuence 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
rell, 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 mufer.
NEVER run the engine without the
spark arrester screen in place.
4
CAUTION!
Operating Precautions
Always make sure the cutting at-
tachment 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 excessive
heat. Engine fuel is very ammable
and re could lead to serious per-
sonal 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 attachment is not
contacting anything.
Always stop the engine immedi-
ately 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 causing the
cutting attachment to rotate.
Make sure cutter safety guards are
in place when transporting the unit.
Never extend trimming line beyond the
length specied for your unit. Always
keep the unit as clean as practical. Keep
it free of loose vegetation, mud, etc.
Safety Labels
IMPORTANT!
Safety and Operation Information Labels:
Make sure all information labels are
undamaged and readable. Immediately
replace damaged or missing information
labels. New labels are available from your
local authorized Shindaiwa dealer.
M242
Figure 1
This label indicates the
minimum distance between
front handle and rear grip
per ANSI B175.3.
5
Product Description
M242 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
WARNING!
Do not make unauthorized modications or alterations to any of these units
or their components.
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 scraper.
Carefully inspect all components for damage.
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.
Specications
M242 Multipurpose Tool Carrier dry weight
(less attachments)...........................................................4.3 kg/9.5 lb.
Engine model .............................................................................S242E
Engine type..................................................................2-cycle catalyst
Bore x stroke................................................1.3 x 1.1 in./33 x 28 mm
Displacement ..........................................................1.5 cu. in./23.9 cc
Maximum power............................1 HP/0.8 kW @ 8000 rpm (min-1)
Fuel/oil ratio...........50:1 with ISO-L-EGD or JASO FC class 2-cycle
mixing oil*
Fuel tank capacity........................................................21.0 oz./620 ml
Carburetor type..................................Walbro WYK, diaphragm-type
Ignition.............................One-piece electronic transistor-controlled
Spark plug...............................................................................BPMR6A
Specifications are subject to change without notice.
meets or exceeds these specifications and is recommended for all
Shindaiwa products.
Air cleaner type.........................Non-reversible foam filter element
Starting method.........................................................................Recoil
Stopping method..............................................................Slide switch
Transmission type................................Automatic centrifugal clutch
w/bevel gear
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).
6
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 (usually 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
Capscrews
Handle
Mounting Bracket
Throttle
Assembly
Figure 3
Handle Assembly
M23006
M23005
�
M23004
Installing a Tool Attachment
1. Place the M242 Multipurpose Tool
Carrier and the Tool Assembly on a
clean, flat surface so that both assemblies fit end to end. The M242 assembly should be facing up, and the tool
assembly should be positioned with the
locking hole in the tube end facing up.
See Figure 4.
Tool Assembly
M242 Tube
Assembly
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
Removing a Tool Attachment
1. With the unit on a clean, flat surface,
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.
7
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 2cycle mixing oil only. Use of non-approved
mixing oils can lead to excessive carbon
deposits.
CAUTION!
Some types of gasoline contain
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 highperformance 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 mix-
ing oil that meets or exceeds ISO-L-EGD
and/or JASO FC classified 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 immediate
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 engines.
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 mufer!
NEVER operate the engine without
the mufer and spark arrester in
good working condition.
8
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!
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.
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.
Advancing the throttle makes the cut-
ting 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 section
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
Closed
Open
Idle the engine briefly before stopping
(about 2 minutes), then slide the ignition
switch to the “O” (engine OFF) position.
See Figure 12.
Stopping the Engine
Figure 12
ON
Primer Bulb
Return Tube
251029
OFF
9
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.
Adjusting Engine Idle
Figure 13
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 adjustment screw
counter-clockwise.
See Figure 13.
WARNING!
A cutting attachment shield or other
protective device is no guarantee of
protection against ricochet. YOU MUST
ALWAYS GUARD AGAINST FLYING
DEBRIS!
3. If a tachometer is available, the engine idle
speed should be final adjusted to 3,000
(±250) rpm (min-1).
4. Carburetor fuel mixture adjustments are
preset at factory and cannot be serviced
in the field.
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 attachment fits properly into the appropriate
cutting attachment holder. If a properly
installed attachment vibrates, replace the
attachment with a new one and re-check.
ALWAYS stop the engine immediately 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!
Idle Adjusting
Screw
10
10-Hour Maintenance
Figure 16
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 CORPORATION
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
Mufer
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 connections
tight and clean.
Fasteners
Make sure nuts, bolts, and screws (except
carburetor adjusting screws) are tight.
Figure 15
WARNING!
Before performing any maintenance, 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 operate
properly with your unit and may cause
damage and lead to personal injury.
NOTE:
Using non-standard replacement parts could
invalidate your Shindaiwa warranty.
Prior to each work day, perform the following:
Remove dirt or debris from the engine,
check the cooling fins and air cleaner for
clogging and clean them as necessary.
Unscrew
Fastener
Remove and
clean or replace
the element
Carefully remove any accumulation of
dirt or debris from the muffler or the
fuel tank. Dirt build-up in these areas
could cause engine overheating, induce
premature wear, or create a fire hazard.
Check for loose or missing screws or
components. Make sure the cutting attachment is securely fastened.
Check the entire unit for leaking fuel or
grease.
Daily Maintenance
Every 10 hours of operation (more frequently in dusty or dirty conditions):
Remove the air cleaner element.
See Figure 15. Clean or replace as
necessary. To clean element: wash it
thoroughly in soap and water. Let it
dry before reinstalling the element.
CAUTION!
Do not operate the unit if the air
cleaner or element is damaged, or if
the element is wet.
XST021
Every 10 to 15 hours of operation:
Remove and clean the spark plug. Adjust
the spark plug electrode gap to 0.024-
0.028 inch (0.6-0.7 mm). If the spark plug
must be replaced, use only an BPMR6A
or equivalent resistor type spark plug of
the correct heat range. See Figure 16.
CAUTION!
Before removing the spark plug, clean
the area around the plug to prevent
dirt and debris from getting into the
engine’s internal parts.
Clean the
spark plug and
check the gap
at the electrode.
10/15-Hour Maintenance
0.024–0.028 inch
(0.6–0.7 mm)
NOTE:
The BPMR6A also meets the requirements
for electro magnetic compliance (EMC).
11
135-hour Maintenance
Every 135 hours of operation,
remove and clean the muffler.
WARNING!
Never operate this trimmer
with a damaged or missing mufer or
spark arrester! Operating with missing
or damaged exhaust components is
a re hazard, and can also damage
your hearing!
1. Remove the spark plug boot.
2. With a 3 mm hex wrench remove the 1
muffler cover and 3 engine cover screws
and the engine cover. See Figure 18.
3. With a Phillips type screwdriver remove
the 5 screws holding the spark arrester
screen and cover to the muffler. See
Figure 18.
4. Remove the screen and clean it with a
stiff bristle brush.
5. With a 4 mm hex wrench remove the 3
muffler bolts and the muffler.
See Figure 18.
6. Inspect the cylinder exhaust port for any
carbon buildup.
7. Gently tap the muffler on a wood surface
to dislodge any loose carbon.
Engine Cover
Screws
IMPORTANT!
If you note excessive carbon buildup, consult
with an authorized Shindaiwa servicing
dealer.
8. Reassemble the spark arrester, muffler
and engine cover in the reverse order of
disassembly.
Figure 18
Muffler
Cover
Engine
Cover
Muffler
Cover Screw
Spark Arrester
Screen
Muffler
Gasket
Muffler
Spark Arrester
Cover
Gasket
Screws
Mufer
Screws
Outlet
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 reinstalling the filter, inspect the
condition of the fuel line. If damage or deterioration are noted, the M242 Multipurpose
Tool Carrier should be removed from
service until it can be inspected by a
Shindaiwa-trained service technician.
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.
Filter Element
Hooked
Wire
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.
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 engine will
no longer start.
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 maintenance cost.
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.
12
Troubleshooting Guide
ENGINE DOES NOT START
Does the engine
crank?
Faulty recoil starter.
Fluid in the crankcase.
Internal damage.
Consult with an authorized servicing dealer.
Consult with an authorized servicing dealer.
Consult with an authorized servicing dealer.
NO
Good
compression?
Loose spark plug.
Excess wear or damage to cylinder,
piston, rings.
Tighten and re-test.
NO
YES
Does the tank
contain fresh
fuel of the
proper grade?
Refill with fresh, clean unleaded gasoline with a pump
octane of 87 or higher mixed with a 2-cycle air cooled
mixing oil that meets or exceeds ISO-L-EGD and/or
JASO FC classified oils at 50:1 gasoline/oil ratio.
Fuel incorrect, stale, or contaminated;
mixture incorrect.
NO
YES
Is fuel visible
and moving in
the return line
when priming?
Check for clogged fuel filter and/or vent.
Priming pump not functioning properly. Consult with an authorized servicing dealer.
Replace fuel filter or vent as required; restart.
NO
Is there spark at
the spark plug
wire terminal?
The ignition switch is in “O” (OFF)
position.
Shorted ignition ground.
Faulty ignition unit.
Move switch to “I” (ON) position and re-start.
NO
YES
YES
Check the
spark plug.
If the plug is wet, excess fuel may be
in the cylinder.
The plug is fouled or improperly gapped.
The plug is damaged internally or of the
wrong size.
Crank the engine with the plug removed, replace the
plug, and re-start.
Clean and re-gap the plug to 0.024 -0.028 inch
(0.6- 0.7 mm). Re-start.
Replace the plug with an BPMR6A or
equivalent resistor type spark plug of the
correct heat range. Set spark plug electrode
gap to 0.024-0.028 inch (0.6-0.7 mm).
YES
What To Check Possible Cause Remedy
13
Troubleshooting Guide (Continued)
LOW POWER OUTPUT
Is the engine
overheating?
Operator is overworking the machine.
Carburetor mixture is too lean.
Improper fuel ratio.
Fan, fan cover, cylinder fins dirty
or damaged.
Carbon deposits on the piston or in
the muffler.
Shorten trimmer line. Cut at a slower rate.
Consult with an authorized servicing dealer.
Refill with fresh, clean unleaded gasoline with a pump
octane of 87 or higher mixed with a 2-cycle air cooled
mixing oil that meets or exceeds ISO-L-EGD and/or
JASO FC classified oils at 50:1 gasoline/oil ratio.
Clean, repair or replace as necessary.
Consult with an authorized servicing dealer.
What To Check Possible Cause Remedy
Engine is rough
at all speeds.
May also have
black smoke
and/or unburned
fuel at the
exhaust.
Clogged air cleaner.
Loose or damaged spark plug.
Air leakage or clogged fuel line.
Water in the fuel.
Piston seizure.
Faulty carburetor and/or diaphragm.
Service the air cleaner element.
Tighten or replace. Replace the plug with an
BPMR6A or equivalent resistor type spark plug
of the correct heat range.
Repair or replace filter and/or fuel line.
Replace the fuel.
Consult with an authorized servicing dealer.
Engine is
knocking.
Overheating condition.
Improper fuel.
Carbon deposits in the combustion
chamber.
See above.
Check fuel octane rating; check for presence of
alcohol in the fuel (pg. 7). Refuel as necessary.
Consult with an authorized servicing dealer.
14
Troubleshooting Guide (Continued)
ADDITIONAL PROBLEMS
Poor
acceleration.
Clogged air cleaner.
Clogged fuel filter.
Lean fuel/air mixture.
Idle speed set too low.
Clean the air cleaner element.
Replace the fuel filter.
Consult with an authorized servicing dealer.
Adjust: 3,000 (±250) rpm (min-1)
Symptom Possible Cause Remedy
Engine stops
abruptly.
Switch turned off.
Fuel tank empty.
Clogged fuel filter.
Water in the fuel.
Shorted spark plug or loose terminal.
Ignition failure.
Piston seizure.
Reset the switch and re-start.
Refuel.
Replace filter.
Refill with fresh, clean unleaded gasoline with
a pump octane of 87 or higher mixed with a 2-cycle
air cooled mixing oil that meets or exceeds ISO-L-EGD
and/or JASO FC classified oils at 50:1 gasoline/oil ratio.
Tighten or replace the plug with a BPMR6A or
equivalent resistor type spark plug of the correct heat
range. Set spark plug electrode gap to 0.024-0.028 inch
(0.6-0.7 mm). For Electromagnetic compliance (EMC)
use NGK BPMR6A. Restart.
Replace the ignition unit.
Consult with an authorized servicing dealer.
Engine difficult
to shut off.
Ground (stop) wire is disconnected
or switch is defective.
Overheating due to incorrect
spark plug.
Overheated engine.
Test and replace as required.
Replace the plug with a BPMR6A or equivalent resistor
type spark plug of the correct heat range. Set spark plug
electrode gap to 0.024-0.028 inch (0.6-0.7 mm). For
Electromagnetic compliance (EMC) use NGK BPMR6A.
Restart.
Idle engine until cool.
Refer to page 13 (overheated engine).
Cutting
attachment
rotates at
engine idle.
Engine idle too high.
Broken clutch spring or worn clutch
spring boss.
Loose attachment holder.
Set idle: 3,000 (±250) rpm (min-1)
Replace spring/shoes as required, check idle speed.
Inspect and re-tighten holders securely.
ADDITIONAL PROBLEMS
Symptom Possible Cause Remedy
Excessive
vibration.
Warped or damaged attachment.
Loose gearcase.
Bent main shaft/worn or damaged
bushings.
Inspect and replace attachment as required.
Tighten gearcase securely.
Inspect and replace as necessary.
Cutting
attachment will
not rotate.
Shaft not installed in powerhead or
gearcase.
Broken shaft.
Damaged gearcase.
Inspect and reinstall as required.
Consult with an authorized servicing dealer.
15
Your Warranty Rights and
Obligations
The California Air Resources Board, the U.S. Environmental
Protection Agency and Shindaiwa Corporation are pleased to
explain the exhaust and evaporative emission control system
warranty on your new small off-road (non-road) engine.
In California, new small off-road engines must be designed,
built, and equipped to meet the State’s stringent anti-smog standards. In other states, new 1997 and later non-road engines must
meet the Federal EPA’s stringent anti-smog standards.
Shindaiwa Corporation must warrant the emission control system on your small off-road engine for the periods of time listed
below, provided there has been no abuse, neglect, or improper
maintenance of your small off-road engine.
Your engine exhaust and evaporative emission control system
includes parts such as the carburetor, fuel tank, the ignition system and, if equipped, the catalytic converter. These components
are specifically listed below.
Where a warrantable condition exists, Shindaiwa Corporation
will repair your small off-road engine at no cost to you including
diagnosis, parts, and labor.
Manufacturer’s Warranty
Coverage
When sold within the U.S., this engine’s emission control
system is warranted for a period of two (2) years from the date
this product is first delivered to the original retail purchaser.
During the warranty period, Shindaiwa Corporation will, at
their option, repair or replace any defective emission-related
component on this engine. During the original Warranty Period,
these Warranty Rights are automatically transferable to subsequent owners of this product.
What is Covered by this
Warranty
1. Carburetor Internal Components
Throttle Valve, Needle, Jet, Metering Diaphragm
2. Fuel Tank
3. Ignition System Components
Ignition Coil
Flywheel Rotor
4. Catalytic Converter (if originally equipped)
The emission control system for your particular Shindaiwa
engine may also include certain related hoses and connectors.
Emission System Warranty Statement
Owners Warranty
Responsibilities
As the small off-road engine owner, you are responsible for
the performance of the required maintenance listed in this owners manual. Shindaiwa Corporation recommends that you retain
all receipts covering maintenance on your small off-road engine,
but Shindaiwa Corporation cannot deny warranty solely for the
lack of receipts or for your failure to ensure the performance of
all scheduled maintenance.
As the small off-road engine owner, you should be aware,
however, that Shindaiwa Corporation may deny you warranty
coverage if your small off-road engine or a part has failed due to
abuse, neglect, improper maintenance, or unapproved modifications.
You are responsible for presenting your small off-road engine
to an authorized Shindaiwa Dealer as soon as a problem exists. The warranty repairs should be completed in a reasonable
amount of time, not to exceed 30 days.
If you have any questions regarding your warranty rights
and responsibilities, you should contact a Shindaiwa customer
service representative at (503) 692-3070 or your local Shindaiwa
Dealer.
Consequential Damages
In the event that other component parts of this product
are damaged by the failure of a warranted part, Shindaiwa
Corporation will repair or replace such component parts at no
charge to you.
What is Not Covered
Failures caused by abuse, neglect, or improper
maintenance procedures.
Failures caused by the use of modified or non-approved parts
or attachments.
This Warranty is Administered by:
Shindaiwa Inc.
11975 S.W. Herman Rd.
Tualatin, OR 97062
(503) 692-3070
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