LONCIN LC 2000i User manual

LC2000i
Service Manual
LONCIN MOTOR CO., LTD.

SAFETY PRECAUTIONS
Thoroughly read this MANUAL before
operating the generator set. Safe operation
and top performance can only be attained
when equipment is operated and maintained
properly.
The following symbols, found throughout this
manual, alert you to potentially dangerous
conditions to operators, service personnel and
equipment.
This symbol alerts you to an
immediate hazard that will result in severe
personal injury or death.
This symbol alerts you to a
hazard or unsafe practice that can result in
severe personal injury or death.
This symbol alerts you to a
hazard or unsafe practice that can result in
personal injury or damage to equipment or
property.
Electricity, fuel, exhaust, moving parts and
batteries present hazards against which
precautions must be taken to prevent severe
personal injury or death.
Exhaust Gas Is Deadly
•Operate the generator set outdoors only.
Stay away from the exhaust outlet.
•Make sure generator set exhaust will not
enter windows, doors, vents or air intakes of
adjacent buildings, vehicles or boats.
•NEVER USE THE GENERTOR SET
INSIDE a home, garage, crawl space, barn,
shed, cabin, boat, boat house, RV or tent,
or in a confined outdoor space such as an
alley, ditch, parking garage or courtyard, or
in any other space where exhaust can
accumulate. Note that HAZARDOUS
CARBON MONOXIDE LEVELS FROM
ENGINE EXHAUST CAN ACCUMULATE
INDOORS EVEN WHEN ALL WINDOWS
AND DOORS ARE OPEN AND FANS ARE
RUNNING.
Gasoline is Flammable / Explosive
•Refuel the generator set outdoors only.
•Static electric sparks caused by fuel flowing
through a service station’s pump nozzle can
ignite gasoline. Never fuel the generator set
with a service station’s pump nozzle. Instead,
fill a safety tank sitting on the ground and
then slowly transfer fuel into the generator
set from the safety tank.
•DO NOT fill fuel tanks while the engine is
running. A hot engine can ignite the fuel.
•To prevent fire due to fuel leakage, always
close the fuel valve and let the generator set
cool before transporting it or storing it in a
confined space.
•DO NOT SMOKE OR ALLOW AN OPEN
FLAME near the generator set. Keep flames,
sparks, electrical switches, pilot torques,
electrical arcs, arc-producing equipment and
all other sources of ignition well away
generator set.
Generator Voltage is Deadly
•DO NOT CONNECT THE GENERATOR
SET DIRECTLY TO ANY BUILDING
ELECTRICAL SYSTEM. Back-feed could
cause electrocution of utility line workers and
damage to equipment. An approved
switching device must be used to prevent
interconnections. A trained and experienced
electrician must make electrical connections
when the generator set is used for
emergency power.
• Make sure clothing, shoes and skin are dry
when operating electrical equipment.
• Never operate the generator set in rain or
snow or when it is sitting on wet ground.
Moving Parts Can Cause Severe Personal
Injury or Death
•Before performing any maintenance on the
generator set, disconnect the spark plug
wire.
• Always keep hands away from moving parts.
•Do not wear loose clothing or jewelry while
servicing the generator set. Loose clothing
and jewelry can be caught in moving parts.
Jewelry can short out electrical contacts,
causing sparks, flame and electrical shock.
a

SAFETY PRECAUTIONS
•Make sure that fasteners and clamps on the
generator set are tight. Keep guards in
position over fans, rotors, etc.
Battery Gases Are Explosive
•Wear safety glasses when servicing
batteries.
•Do not smoke.
•To reduce arcing when disconnecting or
reconnecting battery cables, always
disconnect the negative (–) cable of the
battery first and reconnect it last.
General Precautions
•Keep children away from the generator set.
•Wear hearing protection when near an
running generator set.
•Keep a multi-class (ABC) fire extinguisher
readily at hand. Class A fires involve
ordinary combustible materials such as
wood and cloth. Class B fires involve
combustible and explosive liquids and
gaseous fuels. Class C fires involve live
electrical equipment. (ref. NFPA No. 10).
•Benzene and lead may be found in gasoline
and have been identified by some states and
federal agencies as causing cancer or
reproductive toxicity. Do not ingest, inhale or
contact gasoline.
•Used engine oil has been identified by some
states and federal agencies as causing
cancer or reproductive toxicity. Do not ingest,
inhale or contact used engine oil or its
vapors.
•Keep the generator set clean and dry at all
times. Excess grease and oil can catch fire
and/or accumulate dirt, which can cause
overheating.
•Do not store anything on the generator set,
such as oil cans, oily rags, chains or wooden
blocks. A fire could result or operation could
be adversely affected
•Do not work on the generator set when you
are mentally or physically fatigued or have
consumed alcohol or drugs.
Failure to properly follow instructions and precautions can cause
you to be seriously hurt or killed.
Follow the procedures and precautions in this manual carefully.
Improper service or repairs can create an unsafe condition that
can cause your customer or others to be seriously hurt or killed.
Follow the procedures and precautions in this manual and other
service materials carefully.
b

TABLE OF CONTENTS
SECTION 1 INTRODUCTION
1-1 Generator Components ..............................................................1
1-2 Parameters ........................................................................2
SECTION 2 MAINTENANCE STANDARD
2-1 Engine Maintenance Standard ........................................................3
2-2 Generator Maintenance Standard......................................................4
2-3 Fastener Torque Specification ........................................................4
2-4 Standard Fastener Torque Specification................................................4
SECTION 3 MAINTENANCE
3-1 Maintenance Schedule...............................................................5
3-2 Engine Oil..........................................................................6
3-3 Air Cleaner .........................................................................7
3-4 Fuel Sediment Cup Cleaning..........................................................8
3-5 Spark Arrester ......................................................................8
3-6 Spark Plug .........................................................................9
3-7 Valve Clearance ...................................................................10
SECTION 4 DISASSEMBLY AND SERVICE
4-1 Troubleshooting ....................................................................11
4-1-1 Hard Starting...................................................................11
4-1-2 Low Power.....................................................................12
4-1-3 Speed Unstable ................................................................13
4-1-4 Low Speed/Voltage .............................................................14
4-1-5 Exhaust Color Abnormal .........................................................15
4-1-6 No AC Output Voltage...........................................................16
4-1-7 No DC Output Voltage...........................................................16
4-2 Preparing to Service ................................................................17
4-2-1 Safety Precautions..............................................................17
4-2-2 Special Tools...................................................................17
4-3 Disassembly Chart..................................................................18
4-4 Engine ............................................................................19
4-4-1 Camshaft / Pistion ..............................................................19
c

TABLE OF CONTENTS
4-4-2 Cylinder Head / Valves ..........................................................27
4-4-3 Flywheel / Ignition Coil/Recoil Starter ..............................................33
4-4-4 Carburetor .....................................................................37
4-5 Generator .........................................................................40
4-5-1 Fuel Tank......................................................................40
4-5-2 Muffler ........................................................................41
4-5-3 Frame/Bedplate Combination.....................................................43
4-5-4 Motor .........................................................................44
4-5-5 Inverter .......................................................................47
4-5-6 Control Panel ..................................................................50
4-5-7 Outer case assembly............................................................54
SECTION 5 WIRING DIAGRAMS ........................................................55
d

SECTION 1. INTRODUCTION
1-1 Generator Components
LEFT
CARRYING
HANDLE
LEFT COVER
RECOIL
STARTER GRIP
MUFFLER
RECOIL
STARTER
CONTROL
PANEL
FUEL
TANK
FUEL TANK CAP
RIGHT
CARRYING
HANDLE
RIGHT COVER
CARBURETOR
FUEL COCK
AIR CLEANER
DIPSTICK
MOTOR
LOUVER
MUFFLER
SPARK
PLUG
- 1 -

SECTION 1. INTRODUCTION
1-2 Parameters
Model No. LC2000i
Generator
Type Inverter
Frequency/Hz 50/60
Rated Voltage/V 230/120
Max. output power /kVA 1.8
Rated output power /kVA 1.6
Power factor 1.0
AC output quality ISO8528 G2
THD/% ≤5
Noise Level Acoustical
Power(3/4 load)
87.5
DC Output/ V-A 12-8
Overload
Protection
DC Non-fuse Protector
AC
Control by inverter overload protection
program
Engine
Engine Model No. LC148F
Engine Type
Single cylinder, 4-Stroke, forced air
cooling, OHV
Displacement/cc 79
Fuel Type Unleaded Gasoline
Engine
Fuel Tank Capacity/L 4.0
Continuous Running
Time/h (at rated output)
4
Engine Oil Capacity/mL 350ml
Spark Plug Model E6TC/E6RTC
Starting Mode Recoil starter
Dimensions
Length × Width ×
Height/mm
499×285×455
Net weight/kg 21
- 2 -

SECTION 2 MAINTENANCE STANDARD
2-1 Engine Maintenance Standard
Part Item Standard Allowable limit
Gasoline
engine Max no-load speed
Cylinder compression 5000rpm
≧1.17Mpa（1400rpm）6000 rpm
--
Cylinder Cylinder I.D. 48.6mm 48.765mm
Cylinder
head
Warpage -- 0.10mm
Piston
Skirt O.D.
Piston-to-cylinder
clearance
Piston pin bore I.D.
Piston pin O.D.
Piston pin-to-
piston pin
bore clearance
48.585mm
0.03-0.05mm
12.002 mm
11.998mm
0.004-0.016mm
48.445mm
0.12mm
12.048mm
11.932mm
0.06mm
Piston
rings Ring side clearance
Top/second/oil
Ring end gap Top/
second
Oil
Ring width Top/ second
Oil
0.015-0.045mm
--
0.2-0.4mm
0.15-0.35mm
1.5mm
2.5mm
0.15mm
--
1.0mm
1.0mm
1.37mm
2.37mm
Connecting
rod
Small end (Pin End) I.D.
Big end (Crankshaft) I.D.
Big end oil clearance
Small end side clearance
12.006mm
22.015mm
0.030-0.063mm
0.4-1.5mm
12.07mm
22.065mm
0.12mm
2mm
Crankshaft Crankshaft O.D. 21.985mm 21.925mm
Valves
Valve lash IN
EX
Stem O.D. IN
EX
Guide I.D. IN/ EX
Seat width
Spring free length
0.05±0.02mm
0.05±0.02mm
4.968mm
4.928mm
5.012mm
0.8mm
26.5mm
--
--
4.906 mm
4.763mm
5.072mm
2.0mm
25mm
Camshaft
Cam height IN
EX
Camshaft O.D.
20.54mm
20.54mm
11.964mm
20.29mm
20.29mm
11.896mm
Crankcase
cover Camshaft-holder I.D. 12mm 12.048mm
Carburetor
Main jet
Float height
Pilot screw opening
0
．
65
13.7±1.5mm
2-1/8 turn
--
--
--
Spark plug Gap 0.7-0.8mm --
Spark plug
cap Resistance 5kΩ --
2-2 Generator Maintenance Standard - 3 -

SECTION 2 MAINTENANCE STANDARD
Table of resistance values of windings rated 230 V 2KW:
Part
Wire color
Resistance
Main winding
Brown
4.11-4.55Ω
Secondary winding
Orange
0.38-0.42Ω
DC winding
Blue
0.19-0.21Ω
Table of resistance values between windings rated 120V 2KW:
Part
Wire color
Resistance
Main winding
Brown
1.18-1.30Ω
Secondary winding
Orange
0.38-0.42Ω
DC winding
Blue
0.19-0.21Ω
2-3 Fastener Torque Specification
Part Fastener size
Tightening torque
（
N·m
）
Kg·m
ft·lb
Cylinder head bolt
M6×1.0
10±1
1.0±0.1
7.5±0.1
Fan cover bolt
M6×1.0
10±1
1.0±0.1
7.5±0.1
Crankcase cover bolt
M6×1.0
12±1
1.2±0.1
9±0.1
Connecting rod cap bolt
M6×1 (special bolt)
10±1
1.0±0.1
7.5±0.1
Air cleaner wing nut
M6×1.0
8±1
0.8±0.1
6±0.1
Muffler mounting nut
M6×1.0
8±1
0.8±0.1
6±0.1
Muffler mounting bolt
M6×1.0
10±1
1.0±0.1
7.5±0.1
Flywheel mounting nut
M12×1.25(special nut)
65±2
6.5±0.1
48.75±2
Breather chamber cap bolt
M6×1
10±1
1.0±0.1
7.5±0.1
Speed-variable stepper motor
mounting frame screw
M5×0.8 (special bolt) 8±1 0.8±0.1 18±0.1
Stepper motor screw
M3×0.5
4±1
0.4±0.1
3±0.1
Oil level switch bolt
M6×1
10±1
1.0±0.1
7.5±0.1
Oil level switch holder plate bolt
M6×1
10±1
1.0±0.1
7.5±0.1
Ignition coil bolt
M6×1
10±1
1.0±0.1
7.5±0.1
2-4 Standard Fastener Torque Specification
Standard torque values
5 mm bolt, nut
4-7 (40-70, 2.9-5.1)
6 mm bolt, nut
8-12 (80-120, 5.8-8.7)
8 mm bolt, nut
20-28 (200-280, 14.5-20.2)
10 mm bolt, nut
35-40 (350-400, 14.5-20.2)
12 mm bolt, nut
50-60 (500-600, 36.2-43.4)
- 4 -

SECTION 3 MAINTENANCE
3-1 Maintenance Schedule
Good maintenance is essential to safe, economical
and zero-failure operation, and is also good for
environment protection. Under hot or dusty operating
conditions some maintenance operations should be
performed more frequently, as indicated by the footnotes
to the table.
Keep a log of maintenance performed and the
hours run. Recording maintenance will help you
keep it regular and provide a basis for supporting
warranty claims.
Accidental starting of the generator
set during maintenance can cause severe
personal injury or death. Before performing
maintenance, disconnect the spark plug wire
from the spark plug.
A hot generator set can cause
severe burns. Always allow the generator set
to cool adequately before performing any
maintenance or service.
PERIODIC MAINTENANCE SCHEDULE
SERVICE ITEMS EACH
USE
FIRST MONTH
OR 20
HOURS(3)
EVERY 3
MONTHS
OR 50
HOURS(3)
EVERY 6
MONTHS
OR 100
HOURS
EVERY
YEAR OR
300
HOURS
Engine oil
Check oil
level ○
Replace ○○
Air cleaner Check ○
Clean ○(1)
Fuel sediment cup Clean ○
Spark arrestor Clean ○
Spark plug Clean ○Replace
Valve clearance Readjust ○(2)
Cylinder head Wash Every 500 hours (2)
Fuel tank and
strainer
Wash Every 2 years (2)
Fuel line Replace Every 2 years (2)
(1) Service more frequently when it is used in dusty environments.
(2) These items must be performed by a dealer franchised by Loncin
(3) When the set is used frequently, the correct maintenance intervals above must be followed to
ensure long-time use. - 5 -

SECTION 3. MAINTENANCE
3-2 Engine Oil
NOTE: Drain the oil while the engine is still
warm to assure rapid and complete draining.
1) Place the generator on a level surface.
2) Remove the screws ①, and then
remove the cover②.
3) Remove the oil filler cap③, drain oil from
crankcase.
4) With the engine stopped and laid on a
horizontal place, add new engine oil until oil
level reaches the oil dipstick’s upper limit, then
tighten the oil filler cap
5) Install the cover and tighten the screws.
Note: Before each time of use, the generator must
be placed on a horizontal surface and check the oil
level after stopping the engine.
1.Remove the oil dipstick and wipe it clean
2. Insert dipstick into oil filler hole but don’t tighten it,
check oil level.
3. If oil level is too low, add the recommended
engine oil until oil level reaches the upper limited
shown by the dipstick.
Used motor oil may cause skin
cancer if repeatedly left in contact with the skin
for prolonged periods. Thoroughly wash your
hands with soap and water as soon as possible
after handling used oil though the cancer is not
certain to occur.
Recommended engine oil:
SAE 10W -30
Recommended engine oil grade:
API Service SE type or higher
Engine oil quantity:
0.35 L (0.42 US qt, 0.35 lmp qt)
- 6 -

SECTION 3. MAINTENANCE
3-3 Air Cleaner
A dirty air cleaner will restrict air
flow to the carburetor, causing a lower engine
power. Service air cleaner more frequently
when operating the generator in extremely
dusty areas.
Using gasoline or flammable solvent
to clean the filter element can cause a fire or
explosion. Use only soapy water or
nonflammable solvent.
Never run the generator without the
air cleaner. Rapid engine wear will result.
1) Remove the cleaner cover ②by loosening the
screws . Clean more often in dusty
environment ①.
2) Remove the screw ③，and detach air
cleaner cover ④.
3) Remove the filter elements ①
4) Wash the foam filter element with solvent and
dry it thoroughly
5) Drip some clean engine oil into each foam filter
element and knead to squeeze out excess oil
and let the oil be distributed evenly throughout
each filter element.
- 7 -

SECTION 3. MAINTENANCE
3-4 Fuel Sediment Cup Cleaning
The fuel sediment cup prevents dirt or water
which may be in the fuel tank from entering the
carburetor. If the generator has not been run for a
long time, the sediment cup should be cleaned.
1) Remove screw ①and detach cover ②,
then drain off fuel from fuel tank ③
2) Hold and move downward the clamp④,
then pull off the hose⑤from the tank
3) Take out the fuel filter⑥
4) Wash the fuel filter with gasoline
5) Wipe dry the fuel filter and put it bank into
tank
6) Reinstall the hose and clamp, then open
the fuel valve to check whether it has leak
7) Reinstall the cover and tighten the screws.
Gasoline is extremely flammable
and explosive. Do not smoke or allow flames or
sparks in the work area.
After reassembly, check for leaks,
and make sure the work area is dry before
starting the engine.
3-5 Spark Arrester
A hot muffler can cause severe
burns. Allow the generator set to cool before
servicing the muffler.
Refer to MAINTENANCE SCHEDULE for
scheduled spark arrester cleaning. After letting the
generator set cool down, remove the spark arrester
screen. Inspect for damage, and replace if it is
defective. Clean any deposits on the screen with a
wire brush. Reinstall the spark arrester, and tighten
the screw securely.
- 8 -

SECTION 3. MAINTENANCE
3-6 Spark Plug
A spark plug of a wrong model or
wrong heat range may deteriorate the
engine’s performance or even damage the
engine.
If the engine is run continuously, the spark plug
and muffler will be very hot. Be careful not to touch
the muffler or spark plug.
Turn off generator, remove spark plug
maintenance cover ①and spark plug cap ②,and
insert the tool ④through the hole from the
outside of the cover.
1) Insert the handlebar ③into the tool ④
and turn it counterclockwise to remove the
spark plug.
2) Check the spark plug. Spark plug model:
E6TC/E6RTC
BPR7HS (NGK)
L87YC /R L87YC (CHAMPION)
W16FP / W16FPR (DENSO)
W6BC / WR6BC (BOSCH)
If the machine needs EMC Certification, engine
must use E6RTC spark plug
If the electrode is damaged, or insulation is
cracked or chipped, replace the spark plug. if it can
still be used, use a wire brush to remove carbon or
other deposits from the spark plug.
3) Measure the plug gap with a feeler gauge.
Correct as necessary by carefully bending the
side electrode. The gap should be 0.60-0.70
mm.
4) Check that the spark plug washer is in good
condition, and thread the spark plug in by hand
to prevent cross-threading.
5) After the spark plug seats on the washer,
tighten with a spark plug wrench to firmly press
on the washer.
If installing a new spark plug, tighten l/2 turn
after the spark plug has firmly pressed on the
washer. If reinstalling a used spark plug, tighten
l/8 - l/4 turn after the spark plug has firmly
pressed on the washer.
Spark Plug Torque: 20.0 N*m (2.0kgf*m,
14.8 lbf*ft)
The spark plug must be securely
tightened. An improperly tightened spark plug
could damage the engine.
Never use spark plugs which have an
improper heat range. Use only the recommended
spark plugs or equivalent.
0.6-0.7mm
SIDE
ELECTRODE
WIRE BRUSH
- 9 -

SECTION 3. MAINTENANCE
3-7 Valve Clearance
Valve clearance inspection and
adjustment must be performed with the engine
cold.
1) Remove the cylinder head cover, and pull the
starter grip (until a resistance is clearly felt) to
set the piston at top dead center of the
compression stroke (both valves fully closed).
2) Insert a feeler gauge between the rocker arm
and valve to measure valve clearance.
3) If adjustment is necessary, proceed as follows:
a) Use a clamp to hold the rocker arm pivot
and use a wrench to loosen the pivot lock
nut.
b) Turn the rocker arm pivot to obtain the
specified valve clearance.
c) Retighten the lock nut while using a clamp
to hold the rocker arm pivot.
d) Recheck valve clearance after tightening
the lock nut.
Standard
valve
clearance
IN. 0.05±0.02 mm
EX. 0.05±0.02 mm
ROCKER ARM
PIVOT
LOCK NUT
To increase valve clearance, screw out the pivot
To decrease valve clearance, screw in the pivot
FEELER GAUGE
- 10 -

SECTION 4. DISASSEMBLY AND SERVICE
(TRY AGAIN AFTER A FEW MINUTES)
4-1 Troubleshooting
4-1-1 Hard Starting
(SEE 4-4-1)
(SEE 4-4-2)
(SEE 4-4-2)
(SEE 4-4-2)
(SEE 4-4-2)
(SEE 3-7)
(SEE 4-4-1)
(SEE 4-5-6)
(SEE 4-4-3)
(SEE 4-4-3)
(SEE 3-6)
(SEE 3-2)
HARD
STARING
FUEL SYSTEM
IGNITION
SYSTEM
COMPRESSION
SYSTEM
(SEE 3-3)
(SEE 4-4-4)
(SEE 3-4)
(ADD FUEL INTO FUEL TANK)
FUEL LEVEL too low
FUEL FILTER clogged
CARBURETOR out of adjustment
AIR FILTER dirty
OIL low
SPARK PLUG GAP incorrect
SPARK PLUG CAP faulty
IGNITION COIL faulty
START SWITCH faulty
OIL ALERT SYSTEM faulty
VALVE CLEARANCE incorrect
CYLINDER HEAD GASKET faulty
CYLINDER HEAD BOLT faulty
VALVE faulty
CYLINDER / PISTON / PISTON RING worn
CAMSHAFT worn
ENGINE FLOODED to much fuel
- 11 -

SECTION 4. DISASSEMBLY AND SERVICE
(ADD CLEAN FRESH FUEL OF DESIGNATED
QUALITY INTO TANK)
4-1-2 Low Power
(SEE 4-4-1)
(WASH)
(SEE 4-5-2)
(SEE 4-5-4)
(SEE 4-4-4)
(MOVE TO “RUN” POSITION)
(SEE 3-3)
(SEE 4-4-3)
(SEE 3-6)
(SEE 4-4-1)
(SEE 3-7)
(WASH)
(SEE 4-4-2)
(SEE 3-4)
LOW
POWER
FUEL SYSTEM
IGNITION
SYSTEM
COMPRESSION
SYSTEM
CARBURETOR out of adjustment
FUEL FILTER clogged
CHOKE LEVER not fully open
AIR FILTER dirty
SPARK PLUG faulty
IGNITION COIL faulty
CYLINDER / PISTON / PISTON RING worn
VALVE CLEARANCE out of Spec
COOLING FAN dirty
VALVE SEAT worn or damaged
COOLING CYLINDER COOLING FINS dirty
MUFFLER clogged
MOTOR open phase, MOTOR WINDING
turn-to-turn short circuit
OTHER
FUEL QUALITY poor
(REMOVE EXTRA LOADS)
ELECTRICAL LOADS too high
CAMSHAFT worn
- 12 -

SECTION 4. DISASSEMBLY AND SERVICE
4-1-3 Speed Unstable
(SEE 4-4-2)
(SEE 4-4-1)
(SEE 3-4)
(ADD CLEAN FRESH FUEL OF DESIGNATED
QUALITY INTO TANK)
(SEE 4-4-4)
(SEE 3-7)
SPEED
UNSTABLE
FUEL SYSTEM
COMPRESSION
SYSTEM
FUEL low / poor quality / contaminated
FUEL FILTER clogged
CARBURETOR clogged
VALVE CLEARANCE incorrect
VALVE SEAT worn and leak
CAMSHAFT worn
(SEE 4-4-4)
GOVERNOR
SYSTEM
Speed variable stepper motor damaged
(SEE 4-5-5)
INVERTER’S SPEED GOVERNOR
damaged
(ADD NEW OIL)
OTHER
OIL low level
(REMOVE EXTRA LOADS)
ELECTRICAL LOADS too high
- 13 -

SECTION 4. DISASSEMBLY AND SERVICE
4-1-4 Low Speed / Voltage
(SEE 4-5-4)
(SEE 4-5-4)
(SEE 4-4-4)
(MOVE TO “RUN” POSITION)
(SEE 4-4-4)
(SEE 3-3)
LOW
SPEED /
VOLTAGE
FUEL SYSTEM
CARBURETOR has water
CHOKE LEVER not fully open
AIR FILTER dirty
STEPPER MOTOR faulty
MOTOR open phase, MOTOR WINDING
turn-to-turn short circuit
消声器堵塞
ALTERNATOR temperature too high
OTHER
(SEE 4-5-4)
(REMOVE EXTRA LOADS)
ELECTRICAL LOADS too high
(ADD CLEAN FRESH FUEL OF DESIGNATED
QUALITY INTO TANK)
FUEL QUALITY poor / contaminated
ALTERNATOR temperature too high
(SEE 4-5-5)
INVERTER faulty
GOVERNOR
SYSTEM
- 14 -

SECTION 4. DISASSEMBLY AND SERVICE
4-1-5 Exhaust Color Abnormal
(SEE 3-2)
(SEE 4-4-1)
(ADD CLEAN FRESH FUEL OF DESIGNATED
QUALITY INTO TANK)
(ADD CLEAN FRESH FUEL OF DESIGNATED
QUALITY INTO TANK)
(WHEN STARTING NORMALLY)
(REMOVE EXTRA LOAD)
(SEE 4-4-4)
(SEE 3-3)
EXHAUST
COLOR
ABNORMAL
BLACK
WHITE
CARBURETOR faulty
LOAD excessive
AIR CLEANER dirty
ENGINE temperature too low
FUEL QUALITY poor/contaminated
FUEL QUALITY poor/contaminated
CYLINDER / PISTON / PISTON RING worn
OIL too much
BLUE
(SEE 4-4-3)
CYLINDER faulty
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