Echo CLS-5800 User manual

OPERATOR’S MANUAL
CLEARING SAW
CLS-5800
CAUTION
Read Rules for Safe Operation
and Instruction Carefully
X750-005 88 3
X750 226-440 3
ECHO POWER EQUIPMENT (CANADA)
501 Newbold Street, London, Ontario Canada N6E 1K4
Printed in Japan 0506n 0605 ES

2
INTRODUCTION
The ECHO Clearing saw, model CLS-5800 is
lightweight, high performance gasoline powered
rotary clearing saw which is designed for
brushcutting, in areas which are difficult to control
by any other means. The machine is equipped with
a safety shoulder harness, and the excellent
balance characteristics plus the available power,
ensures comfortable operation.
RULES FOR SAFE OPERATION .......................................................................................................... 3
NOMENCLATURE OF PARTS............................................................................................................... 4
TECHNICAL DATA................................................................................................................................. 4
ASSEMBLING ....................................................................................................................................... 5
OPERATION.......................................................................................................................................... 7
MAINTENANCE AND CARE ................................................................................................................. 10
TROUBLE SHOOTING.......................................................................................................................... 13
LONGTERM STORAGE ....................................................................................................................... 14
CONTENTS
This manual provides the information necessary
for assembly, adjustment, operation and
maintenance of your unit.
This spark ignition system complies with Canadian ICES-002.
Copyright ©2003 All Rights Reserved.
Safety decal: Part number 890317-49030
Safety decal: Part number 890177-51330
Locate this safety decal on your unit. The complete unit illustration found in the “NOMENCLATURE”
section, will help you locate them. Make sure the decal is legible and that you understand and follow
the instructions on them. If a decal cannot be read, a new one can be ordered from your ECHO dealer.

3
SAFETY INSTRUCTIONS
1. Do Not operate the unit when you are
fatigued.
2. Do Not operate if other people or animals
are in the work area.
3. Do Not operate the unit without the shield
correctly in position.
4. Do Not operate in a confined area. Carbon
monoxide exhaust gas is highly poisonous.
5. Do Not operate the unit while you are
smoking.
6. Always wear eye protection goggles when
operating the unit.
7. Always hold the unit firmly with both hands
and with fingers and thumbs encircling the
handles.
8. Always obey local ordinances regulating the
use of internal combustion engines in your
area.
9. Always use the cutting attachments as
approved and supplied by ECHO POWER
EQUIPMENT (CANADA) for your unit.
10. Always remain alert when operating the unit
to avoid possible injury to yourself and other
people.
11. Always wear the shoulder harness when
operating the unit.
12. Do not operate the unit while under the
influences of drugs or alcohol.
WARNING DANGER
1. DO NOT SMOKE WHILE HANDLING
GASOLINE.
2. DO NOT REFUEL A HOT ENGINE. WAIT
UNIT IT COOLS.
3. DO NOT OVERFILL THE TANK. SPILLED
FUEL MUST BE WIPED UP.
4. ALWAYS STOP THE ENGINE WHEN
REFUELING.
5. ALWAYS REMOVE THE FUEL CAP
SLOWLY IN ORDER TO RELIEVE ANY
PRESSURE BUILD UP IN THE TANK.
6. ALWAYS RESTART THE ENGINE AT
LEAST 3 M AWAY FROM THE REFUELING
POINT.
7. ALWAYS STORE GASOLINE IN AN
APPROVED CONTAINER.
RULES FOR SAFE OPERATION
CAUTION
For your protection when operating this unit,
comply with all Safety Rules as listed in the
Operator’s Manual. (Replacement manuals
are available from your ECHO dealer.)
1. Do not operate unless the debris shield
and safety harness are in good condition
and properly installed.
2. Do not operate if other persons or
animals are in the work area.
3. Do not operate without eye protection
goggles available from your ECHO dealer.
WARNING DANGER
SERIOUS INJURY MAY RESULT FROM THE
IMPROPER USE OF STEEL BLADES.
COMPLY WITH ALL SAFETY INSTRUCTIONS
LISTED IN THE OPERATOR’S MANUAL AND
SUPPLIED WITH THE BLADES.
1. THE ECHO SAW TOOTH BLADE IS
DESIGNED TO CUT BRUSH AND SMALL
TREES.
2. ECHO WILL NOT BE RESPONSIBLE FOR
THE FAILURE OF CUTTING DEVICES
WHICH HAVE NOT BEEN TESTED AND
APPROVED BY ECHO FOR USE WITH
THIS UNIT.

4
CLS-5800
Dimension L × W × H mm 1692 × 545 × 485 (66.6 in × 21.5 in × 19.1 in)
Mass kg 10.0 (22.0 lb): without shoulder harness and cutter head
Engine Type Air cooled two stroke single cylinder
Displacement mL (cm³) 58.2 (3.55 cu.in)
Maximum
revolution r/min 10,000
Carburetor ZAMA (C3M) diaphragm type
Ignition Flywheel magneto: CDI (Capacitor Discharge Ignition)
system
Spark plug NGK BPMR8Y
Starter Recoil starter
Clutch Automatic centrifugal clutch
Fuel Mixing ratio Mixture of gasoline (Unleaded, 89 octane minimum) and
specially blended 50 : 1 ECHO two cycle engine oil.
Tank capacity L 0.68 (23.0 US fl. oz.)
Drive shaft Gear housing 60 degree bevel gears, ratio 1 : 1.4 (Counterclockwise)
assembly Lubrication Good quality lithium grease
Drive shaft High tensile solid steel,10 mm (0.39 in) shaft, 5 bearings
Shield Metal shield mounted on the gear housing for steel blade
applications.
NOMENCLATURE OF PARTS
TECHNICAL DATA
Technical data subject to change without notice.
Shield
Gear housing
Ignition switch
Drive shaft assembly
Throttle trigger
Grip Spark plug
Muffler cover
Choke knob
Air cleaner cover
Starter handle
Fuel tank
Part number 890317-49030
Part number 890177-51330
Shoulder harness

5
ASSEMBLING
WARNING DANGER
NEVER START ENGINE WITHOUT SHAFT
TUBE ASSEMBLY INSTALLED.
THIS COULD RESULT IN SERIOUS INJURY.
U-HANDLE INSTALLATION
• Assemble handle and bracket to handle support
loosely.
• Position handle in comfortable operating position
and tighten four bolts (M5×35).
RIGHT HANDLE INSTALLATION
• Assemble the handle and bracket to handle
support loosely.
• Position handle in comfortable operating position
and tighten four bolts (M5×25).
• Fix the throttle cable to the driveshaft assembly
using both clips (M5×22, Nut).
Handle support
U-Handle bar
Bolts M5×35
Grip
Bracket
Adjustable
Bolts M5×25
Bolts M5×35
Clip
lNSTALLING SHIELD
• Place shield on the bracket of the gear housing,
aligning holes in bracket with those in shield.
• Secure shield to bracket with four bolts (M5×20).
NOTE
The left and right side of the U-Handle are
adjustable.
Bolts M5×20
Bracket
Gear housing
Shield
Bolts M5×25
DRIVE SHAFT
•Stand engine upright on a level floor.
•Fit drive shaft assembly ensuring that the drive
shaft is correctly engaged.
•Tighten four bolts (M5×25) to fasten drive shaft
assembly.
Adjustable

6
NOTE
The drive shaft is fitted with left hand threads.
Turn locking nut counterclockwise to tighten.
Assemble cutter blade properly
Adapter plate (B)
Cup washer
Nut
Adapter plate (A)
Shield
Cutter blade
INSTALLATION OF CLEARING BLADE
• Place the blade on the adapter plate (A).
• Place the adapter plate (B) atop the axle.
• The flat side of adapter plate (B) should be on the
blade.
• Put the cup washer on the adapter plate (B) and
secure the lock nut counterclockwise.
• To fasten or loosen the lock nut, use the spanner
(across flats 19).
• Inserting a locking tool into the holes of the
adapter plate (A) and gear housing should block
the axle.
Adapter plate (B)
Adapter plate (A) Locking tool
Cup washer
Nut Cutter blade
Shoulder strap
Push
Hook
SHOULDER HARNESS
•Install the harness over the both shoulders and
adjust shoulder straps so that the quick release
latch rests low on the right hand side.
•Attach the trimmer/brushcutter to the harness by
means of the quick release latch.
•Make some practice sweeps as with a scythe and
readjust the harness as necessary for comfort
and to maintain the cutter parallel to the ground.
WARNING DANGER
IN CASE OF EMERGENCY, PULL THE QUICK
RELEASE LATCH TO DISCONNECT THE
TRIMMER FROM THE HARNESS.
Quick release latch
Never fasten while applying your weight. Otherwise
the thread of nut could be broken.

7
Oil 1
50
Gasoline
GENERAL CHECK
•Eneure that all nuts, screws and bolts installed are
properlytightened.
FUEL STATEMENT
GASOLINE: Use 89 octane [(R+M)/2] gasoline or
gasohol known to be good quality. Gasohol may
contain maximum 10% ethyl (grain) alcohol or 15%
MTBE (methyl tertiary-butyl ether). Gasohol
containing methyl (wood) alcohol is not approved.
OIL: ECHO brand premium two-stroke 50 : 1 oil is
requirred.
Mix oil and gasoline /gasohol according to
instructions on the oil container label.
MIXING: Follow directions on the oil container.
OPERATION
US METRIC
GAS OIL GAS OIL
GAL. FL.OZ. L mL
1 2.6 4 80
2 5.1 8 160
5 12.8 20 400
Fuel mix chart 50 : 1 (2%)
NOTE
Stored fuel ages. Do not mix more fuel than you
expect to use in thirty (30) days, ninety (90) days
when a fuel stabilizer is added.
Stored two-stroke fuel may separate. ALWAYS
shake fuel container thoroughly before each use.
•It is not permitted to fill fuel above the shoulder
level of fuel tank.
•Slide switch to START/RUN position as shown.
•Turn choke knob to START (CLOSE) position.
•Pull starter handle until the engine fires. Now, turn
choke knob to RUN (OPEN) position, and if
necessary, restart the engine again and allow to
warm up for a few minutes before using.
•After idling, gradually open throttle and cutter
blade will start to operate as the engine attains
clutch engagement speed of 3,000 r/min
approximately.
Throttle trigger Ignition switch
Start/Run
Stop
Push
Throttle control lockout
Choke knob
START(CLOSE)
RUN(OPEN) STARTING WARM ENGINE
•When engine is warm, start it by pulling starter
handle with switch positioned at START/RUN.
(Keep choke knob in RUN (OPEN) position)
•If engine does not start in a few tries, follow same
procedures as starting a cold.
Sholder level
Fuel tank
WARNING DANGER
••
••
•WHEN ENGINE IS STARTED, CONFIRM IF
THERE IS NOT ANY ABNORMAL
VIBRATION OR SOUND. IF THERE IS
ABNORMAL VIBRATION OR SOUND, ASK
YOUR DEALER TO REPAIR.
••
••
•AFTER REFUELING TIGHTEN FUEL CAP
FIRMLY AND CHECK FOR LEAKAGE. IN
CASE OF FUEL LEAKAGE REPAIR BEFORE
STARTING OPERATION SINCE THERE IS A
DANGER OF FIRE.
STARTING COLD ENGINE
NOTE
Starter handle: Use short pulls - only 1/2 - 2/3 of
starter rope for starting. Do not let starter rope
snap back in.
Always hold the unit firmly.

8
STOPPING ENGINE
•Release throttle trigger and allow to run at an idle
speed.
•Slide ignition switch to “STOP” position.
Throttle trigger Ignition switch
Stop
OPERATING THE MACHINE
•Adjust handle to a convenient position for cutting
as instructed on page 5.
•Allow the engine to warm up at a fast idle for a
few minutes.
•Increase engine speed as necessary.
•When mowing shrubs, weeds, or grass, swing the
cutter head from right to left as you move forward.
- Avoid striking any obstruction such as rocks,
stones or tree stumps which can damage the
cutter head. Do not cut into the ground.
- To avoid damage to the engine, do not run the
engine unloaded at full throttle.
•In the event that the cutter strikes an obstruction
or is otherwise prevented from rotating in normal
operation, the clutch will slip to prevent possible
engine damage. In this case, stop the engine free
the cutter and then start the operation again.
•When grass or weeds have clogged the cutter
head affecting normal operation, first, stop the
engine and then remove the debris.
CAUTION
Do not allow either people or animals into the
work area. Always wear safety goggles when
cutting. Dress properly-Avoid loose clothing.
WARNING DANGER
••
••
•NEVER START ENGINE WITHOUT
DRIVESHAFT ASSEMBLY INSTALLED.
THIS COULD RESULT IN SERIOUS INJURY.
••
••
•BEFORE STARTING UP THE ENGINE,
MAKE SURE THAT THE CUTTER BLADE IS
NOT CONTACTING ANYTHING.
••
••
•WHEN TWO OR MORE OPERATORS ARE
WORKING TOGETHER, ENSURE THAT A
SAFE DISTANCE IS KEPT BETWEEN THEM.

9
6. SHOULD THE BRUSHCUTTER BE
OPERATED FOR AN EXTENDED PERIOD
OF HIGH TEMPERATURES, THE GEAR
BOX MAY BECOME VERY HOT.
IF TOO HOT TO TOUCH, ALLOW THE UNIT
TO COOL DOWN, CHECK THE
LUBRICATION AS PER “MAINTENANCE”
AND CONTINUE TO OPERATE IF IN
ORDER.
7. TO AVOID ENGINE DAMAGE, DO NOT
RUN ON FULL THROTTLE WITHOUT
LOAD.
8. DO NOT OPERATE THE BRUSHCUTTER
WITHOUT THE HARNESS AND DEBRIS
SHIELD CORRECTLY FITTED.
9. ALWAYS INSPECT THE WORK AREA AND
REMOVE ANY FOREIGN OBJECTS.
SAFETY PRECAUTIONS
1. ALWAYS USE THE CORRECT BLADE FOR
THE JOB AS RECOMMENDED.
2. BE CAREFUL NOT TO HIT ROCKS,
STONES, TREE STUMPS OR ANY
FOREIGN OBJECT WHICH MAY DAMAGE
THE BLADE.
3. DO NOT CUT INTO THE GROUND TO
AVOID DULLING THE BLADE.
4. ALWAYS STOP THE ENGINE AND
EXAMINE THE BLADE AFTER STRIKING
AN OBSTRUCTION.
DO NOT OPERATE WITH A BLADE WHICH
IS BLUNT, BENT, FRACTURED, OR
DISCOLORED DUE TO OVERHEAT.
5. IN THE EVENT, THAT THE BLADE
STRIKES AN OBSTRUCTION, OR IS
OTHERWISE PREVENTED FROM
ROTATING IN NORMAL OPERATION, THE
CENTRIFUGAL CLUTCH WILL SLIP TO
PREVENT ENGINE DAMAGE.
IN THIS CASE, STOP THE ENGINE, FREE
AND EXAMINE THE BLADE AND IF IN
GOOD ORDER, RESUME OPERATION.
WARNING DANGER
WARNING DANGER
1. SERIOUS INJURY MAY RESULT FROM
THE IMPROPER USE OF STEEL BLADES.
READ AND COMPLY WITH SAFETY
INSTRUCTIONS LISTED IN THIS MANUAL.
2. ECHO WILL NOT BE RESPONSIBLE FOR
THE FAILURE OF CUTTING DEVICES
WHICH HAVE NOT BEEN TESTED AND
APPROVED BY ECHO FOR USE WITH
THIS UNIT.
STEEL BLADE OPERATIONS
SMALL TREES
•The unit will effectively cut small trees up to 8 cm
diameter using new blade approved by ECHO.
•Before attempting to cut, ensure that the falling
tree will fall away from you, and if necessary, tie a
rope to the tree and have an assistant pull it in a
safe direction.
•Do not attempt to “plunge cut”, i.e. using the
brushcutter like an axe. It is not necessary and
may cause serious damage to the machine.
•Brace your feet firmly on the ground and cut with
the left hand side of the blade.
NOTE
1. Always cut on full throttle.
2. Never try cutting with a blunt blade.

10
MAINTENANCE AND CARE
- ALWAYS KEEP THE UNIT CLEAN -
AIR FILTER
•Clean before using the unit.
- Close choke and remove air cleaner cover.
- Remove air filter (Air filter is located inside air
cleaner cover).
- Brush off dust lightly or clean with compressed
air.
- Reinstall cover and engage latch.
FUEL FILTER
•Check periodically.
- Do not allow dust to enter into fuel tank.
- Clogged filter will cause difficulty in starting
engine or abnormalities in engine performances.
- Pick up fuel filter through fuel inlet port with a
piece of steel wire or the like.
- When filter is dirty, wash it in suitable cleaning
fluid or replace it.
MUFFLER AND EXHAUST PORT (SAM)
•Clean as necessary.
•Carbon deposits in cylinder exhaust port and
muffler will reduce engine output.
- Muffler can be removed by taking off muffler
cover.
- Remove spark arrestor screen from muffler.
- Clean carbon deposits from screen and muffler
components.
- Be careful not to scratch cylinder or piston when
cleaning cylinder exhaust port.
Use non-ferrous plastic or wood.
- Replace spark arrestor screen if it is cracked,
plugged or has holes burned through.
- Inspect gaskets, replace if damaged.
- Assemble components in reverse order.
(See left figure.)
CYLINDER FINS
•Check periodically.
•Clogged fins will result in poor engine cooling.
•Remove dirt and dust from between fins to let
cooling air pass easily.
Cylinder fins
Air cleaner cover
Air filter
Fuel tank Fuel filter
Muffler cover
Muffler
Gasket
Muffler
Spark arrestor screen
Gasket

11
CAUTION
When starting, idling adjustment speed
should be adjusted not to rotate the cutting
attachment.
Correct idle speed is adjusted 2,400 to
2,800 r/min. Or 1/4 turn counterclockwise
from the point the cutting attachment stops
moving.
When there is some trouble with the
carburetor, refer to your distributor or dealer.
WARNING DANGER
CUTTING ATTACHMENT MUST NOT TURN
OR MOVE WHEN UNIT IS IDLING.
SPARK PLUG
•Check periodically.
•Standard spark plug gap is 0.6 to 0.7 mm
(0.024 to 0.028 in).
•Replace if either electrode is worn or if the
insulator is fouled by oil or other deposits.
•TORQUE = 15 to 17 N•m (130 to 145 in•lb)
NOTE
Do not over torque.
0.6 - 0.7 mm (0.024 - 0.028 in)
Gear housing Bolt GEAR HOUSING
•Remove the bolt every 50 hours and check.
•Replenish as necessary, but do not overfill.
- Good quality lithium multi grease is
recommendable.
Idle speed
adjustment screw (T)
High speed needle (H)
Low speed needle (L)
CARBURETOR ADJUSTMENT
Every unit is run at the factory and the carburetor
is set in compliance with Emission Regulations. In
addition, the carburetor is equipped with “H” (High
Speed Needle) and “L” (Low Speed Needle)
needle adjustment limited that prevent settings
outside acceptable limits.
1. Before adjusting carburetor clean or replace air
filter.
2. Make sure the cutting attachments such as
hedge clipper blades or circular saw are
properly adjusted.
3. Start engine and run several minutes to bring to
operating temperature. Flash choke twice during
warm-up to clear any air from the fuel system.
4. Stop engine.
Turn “H” speed needle counterclockwise (CCW)
to stop.
Turn “L” speed needle midway between full
clockwise (CW) stop and CCW stop.
5. Idle Speed Adjustment:
•Start engine, turn “Idle” speed adjustment
screw CW until the cutting attachment begins
to turn, then turn screw out CCW until the
cutting attachment stops turning.
Turn screw out, CCW, an additional 1/4 turn.
6. Accelerate to full throttle for 2 - 3 seconds to
clear any excess fuel in the engine, then return
to idle.
Accelerate engine to full throttle to check for
smooth transition from idle to high speed.
If engine hesitates turn “L” needle CCW 1/8 turn
and repeat acceleration.
Continue adjustment until smooth acceleration
results.
7. Check idle speed and reset if necessary as
described in item 5. If a tachometer is available
idle speed should be set between 2,400 to
2,800 r/min.

12
FILING THE BLADE
(A)
• File with round file 4.0 to 4.8 mm (3/16” to 5/32”).
• The blade should be filed on the breast side and
equally on each single tooth. (Fig 1)
15°
Tooth height
MAGNETO
The unit is incorporated with a CDI (Capacitor
Discharge Ignition) system, which does not require
adjustment of ignition timing and the contact
breaker point gap.
Ensure wire connections and couplers assembling.
Fig. 1
Field blade
Center line
Fig. 2 (B)
• The cutting angle should be approximately 15
degress.
• The bottom of the tooth must be rounded off.
Sharp edges can cause crack formation. (Fig 2)
15°
CHECK FUEL SYSTEM
• Check before every use.
• After refuelling make sure fuel does not leak or
exude from around fuel pipe, fuel grommet or fuel
tank cap.
• In case of fuel leakage or exudation there is a
danger of fire. Stop using the machine
immediately and request your dealer to inspect or
replace.

13
Fuel filter clogged Clean or replace.
Fuel pipe clogged Clean.
Suction insufficient Make sufficient.
Fuel filter clogged Clean or replace.
Carburetor out of order Disassemble and check.
C.D.I. module defective Remove and replace.
Ignition coil defective Remove and replace.
Wire connection defective Reconnect.
High-tension cord connection Repair as necessary.
defective
Switch is grounded Switch on.
Insulator cracked Replace plug.
Spark gap incorrect Adjust.
Covered with carbon Clean or replace.
Fouled with fuel Clean or replace.
Starting procedures incorrect Start correctly.
Low and high speed needle Readjust.
setting too lean
Metering lever spring too strong Readjust.
Fuel pump diaphragm defective Replace.
Fuel passage clogged with dust Disassemble and clean.
Fuel leaking from fixing Retighten all screws.
surfaces of carburetor
Air valve, fuel tank cap Replace or clean.
does not work normally
Fuel pump does not operate Check impulse drilling.
Fuel inlet needle valve Clean.
clogged with dust
Metering lever spring not placed Correct.
in dent of lever This is because fuel
mixture is too rich.
Muffler sticky Start the engine several
with fuel times with choke shutter
fully open and run at fast
idle until engine does not
smoke.
Bearing damaged Disassemble and replace.
Piston and/or cylinder seized Disassemble and replace.
Crankshaft worn Disassemble and replace.
Crankshaft contacting Disassemble and replace.
crankcase
Fuel is not
reaching
carburetor
Starting procedures correct
Accelera-
tion and
low speed
function
defective
No spark at high
tension cord end
No spark at plug
Fuel is not
reaching
cylinder
Fuel is reaching cylinder
There is spark at plug
There is spark at high tension cord end
Fuel does
not keep
running
Carburetor
overflow
Engine does
not crank
Table 1
Engine cranks
Engine does not start (or, is difficult to start)
There is fuel in the tank
Fuel is reaching carburetor
TROUBLE SHOOTING
Poor performance of the engine and/or trimming mechanism can normally be prevented by carefully
followinginstructions.
Poor performances can easily be corrected even by a beginner.
When the engine does not function properly check the following three (3) points first.
•Is engine compression adequate?
•Is fuel system in good condition and is enough fuel being supplied?
•Is electrical system in good condition and is spark plug operating normally?
When there is serious trouble with the unit, do not try to repair it yourself but have your distributor or dealer
do it for you. For detailed TROUBLE SHOOTING refer to tables 1 and 2. Locate the problem on the
following charts and repair as necessary.

14
Improper fuel used Use fuel with correct mixing ratio.
Never use gasoline of poor quality.
Spark plug defective (burnt) Replace.
As cooling fins clogged, air Clean fins.
does not pass well
Excessive deposits in Disassemble and remove carbon.
combustion chamber
Plug damaged or fouled Replace or clean.
Combustion poor due to Check wiring.
defective wiring
High-speed needle Readjust.
setting incorrect
Carburetor overflow Refer to Table 1.
Air cleaner clogged Clean as necessary.
Compression insufficient Disassemble, check and replace
(piston ring stuck or worn if necessary.
out)
Cylinder chromium plating Replace cylinder.
peeled or worn out
Exhaust port clogged with Clean as necessary.
carbon
Throttle is not fully open Readjust.
Improper setting Set properly.
Height of cutter uneven Correct properly.
Overloaded Adjust load.
Clutch shoe worn out Replace.
Table 2
•Inspect and adjust every part of the unit.
- Completely clean every part, and repair, if
necessary.
- Apply thin coating of oil on metal parts to prevent
rust.
- Remove the cutter head, apply sufficient
oil coating and wrap up in plastic sheet.
LONGTERM STORAGE
•Drain fuel tank, pull starter handle slowly a few
times to drain fuel from carburetor.
•Pour a small amount of clean motor oil into spark
plug hole, pull starter handle and then crank the
engine until TOP DEAD CENTER.
•Store in a dry area, free from dust.
Engine overheated
Carburetor defective
Other troubles
Firing function defective
Blade does not cut well
Blade does not rotate
Machine does not trim properly
Engine speed insufficient
Eengine runs normally
WARNING DANGER
FUEL VAPORS ARE EXTREMELY FLAMMABLE AND MAY CAUSE FIRE AND/OR EXPLOSION.
NEVER TEST FOR IGNITION SPARK BY GROUNDING SPARK PLUG NEAR CYLINDER PLUG
HOLE, OTHERWISE SERIOUS PERSONAL INJURY MAY RESULT.