Loncin G200FA, G420FDA, G420FA, G300FDA, G390FDA User Manual
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Keep this owner's manual handy, so you can refer to it at any time.
This owner's manual is considered a permanent part of the engine and should remain with
the engine if resold.
The information and specifications included in this publication were in effect at the time of
approval for printing.
Only the D Type is equipped for both electric and manual starting.
READ THIS OWNER’S MANUAL CAREFULLY. Pay special attention to these symbols
and any instructions that follow:
Indicates serious injury or death will result if instructions are not
followed.
Indicates a strong possibility that serious injury or death could
result if instructions are not followed.
Indicates a possibility that minor injury or an result if instructions
are not followed.
Indicates that equipment or property damage can result if
instructions are not followed.
NOTE: Gives helpful information.
If a problem should arise, or if you have any questions about your engine, consult your
engine dealer.
CONTENTS
CONTENTS
1. ENGINE SAFETY........................................................................................2
2. COMPONENTS & CONTROL LOCATIONS……………................................................3
3. CONTROLS...............................................................................................4
4. CHECK BEFORE OPERATION .............................................................................. 6
5. OPERATION............................................................................................ 7
6. MAINTENANCE ……………………….......................................................................11
7. STORAGE/TRANSPORTING ...................................................................................23
8. TROUBLESHOOTING………………………………………………................................26
9. TECHNICAL & CONSUMER INFORMATION ……..……………………………………27
10. SPECIFICATIONS ...................................................................................33
11. WIRING DIAGRAMS ...............................................................................35
12. OPTIONAL PARTS....................................................................................37
BATTERY.................................................................................................37
ENGINE SAFETY
1. ENGINE SAFETY
IMPORTANT SAFETY INFORMATION
Most accidents with engines can be prevented if you follow all instructions in this manual
and on the engine. Some of the most common hazards are discussed below, along with
the best way to protect yourself and others.
Owner Responsibilities
z The engines are designed to give safe and dependable service if operated according
to instructions. Read and understand this owner’s manual before operating the engine.
Failure to do so could result in personal injury or equipment damage.
z Know how to stop the engine quickly, and understand the operation of all controls.
Never permit anyone to operate the engine without proper instructions.
z Do not allow children to operate the engine. Keep children and pets away from the
area of operation.
Refuel With Care
Gasoline is extremely flammable, and gasoline vapor can explode. Refuel outdoors, in a
well-ventilated area, with the engine stopped. Never smoke near gasoline, and keep other
flames and sparks away. Always store gasoline in an approved container. If any fuel is
spilled, make sure the area is dry before starting the engine.
Hot Exhaust
z The muffler becomes very hot during operation and remains hot for a while after
stopping the engine. Be careful not to touch the muffler while it is hot. Let the engine
cool before storing it indoors.
z To prevent fire hazards and to provide adequate ventilation for stationary equipment
applications, keep the engine at least 3 feet (1 meter) away from building walls and
other equipment during operation. Do not place flammable objects close to the engine.
Carbon Monoxide Hazard
Exhaust gas contains poisonous carbon monoxide. Avoid inhalation of exhaust gas. Never
run the engine in a closed garage or confined area.
Other Equipment
Review the instructions provided with the equipment powered by this engine for any
additional safety precautions that should be observed in conjunction with engine startup,
shutdown, operation, or protective apparel that may be needed to operate the equipment.
2
COMPONENTS & CONTROL LOCATIONS
2. COMPONENTS & CONTROL LOCATIONS
MUFFLER
THROTTLE LEVER
SPARK PLUG
AIR CLEANER
FUEL VALVE LEVER
FUEL TANK
FUEL FILLER CAP
IGNITION SWITCH
STARTER GRIP
RECOIL STARTER
CHOKE LEVER
OIL DRAIN PLUG
OIL FILLER CAP/DIPSTICK
3
CHECK BEFORE OPERATION
3. CONTROLS
Fuel Valve Lever
The fuel valve opens and closes the passage between the fuel tank and the carburetor.
The fuel valve lever must be in the ON position for the engine to run.
When the engine is not in use, leave the fuel valve lever in the OFF position to prevent
carburetor flooding and to reduce the possibility of fuel leakage.
Throttle Lever
The throttle lever controls engine THROTTLE LEVER speed.
Moving the throttle lever in the directions shown makes the engine run faster or slower.
Engine Switch
The engine switch enables and disables the ignition system.
The engine switch must be in the ON position for the engine to run.
Turning the engine switch to the OFF position stops the engine.
OFF
FUEL
VALV E
LEVER
ON
OFF
THROTTLE
LEVER
SLOW
FAST
4
CHECK BEFORE OPERATION
ALL ENGINE EXCEPT D TYPE
ENGINE SWITCH
OFF
ON
Choke Lever
The choke lever opens and closes the choke valve in the carburetor.
The CLOSE position enriches the fuel mixture for starting a cold engine.
The OPEN position provides the correct fuel mixture for operation after starting, and for
restarting a warm engine.
Some engine applications use a remotely-mounted choke control rather than the
engine-mounted choke lever shown here.
CHOKE LEVER
OPEN
CLOSE
OPEN
Recoil Starter Grip
Pulling the starter grip operates the recoil starter to crank the engine.
STARTER GRIP
5
CHECK BEFORE OPERATION
4. CHECK BEFORE OPERATION
IS YOUR ENGINE READY TO GO?
For your safety, and to maximize the service life of your equipment, it is very important to
take a few moments before you operate the engine to check its condition. Be sure to take
care of any problem you find, or have your servicing dealer correct it, before you operate
the engine.
Improperly maintaining this engine,
or failing to correct a problem
before operation, could cause a
malfunction in which you could be
seriously injured.
Always perform a preoperation
inspection before each operation,
and correct any problem.
Before beginning your preoperation checks, be sure the engine is level and the engine
switch is in the OFF position.
Check the General Condition of the Engine
z Look around and underneath the engine for signs of oil or gasoline leaks.
z Remove any excessive dirt or debris, especially around the muffler and recoil starter.
z Look for signs of damage.
z Check that all shields and covers are in place, and all nuts, bolts, and screws are
tightened.
Check the Engine
Check the engine oil level. Running the engine with a low oil level can cause engine
damage.
The Oil Alert system (applicable engine types) will automatically stop the engine before the
oil level falls below safe limits. However, to avoid the inconvenience of an unexpected
shutdown, always check the engine oil level before startup.
Check the air filter. A dirty air filter will restrict air flow to the carburetor, reducing engine
performance.
Check the fuel level. Starting with a full tank will help to eliminate or reduce operating
interruptions for refueling.
Check the Equipment Powered by This Engine
Review the instructions provided with the equipment powered by this engine for any
precautions and procedures that should be followed before engine startup.
6
OPERATION
5. OPERATION
SAFE OPERATING PRECAUTIONS
Before operating the engine for the first time, please review the IMPORTANT SAFETY
INFORMATION and the chapter titled BEFORE OPERATION.
Carbon monoxide gas is toxic.
Breathing it can cause
unconsciousness and even kill you.
Avoid any areas or actions that
expose you to carbon monoxide.
Review the instructions provided with the equipment powered by this engine for any safety
precautions that should be observed in conjunction with engine startup, shutdown, or
operation.
STARTING THE ENGINE
1. Move the fuel valve lever to the ON position.
2. To start a cold engine, move the choke lever to the CLOSE position.
To restart a warm engine, leave the choke lever in the OPEN position.
Some engine applications use a remotely-mounted choke control rather than the
engine-mounted choke lever shown here.
ON
FUEL VALVE
LEVER
7
OPERATION
CHOKE LEVER
CLOSE
OPEN
3. Move the throttle lever away from the SLOW position, about 1/3 of the way toward the
FAST position.
Some engine applications use a remotely-mounted throttle control rather than the
engine-mounted throttle lever shown here.
THROTTLE LEVER
4. Turn the engine switch to the ON position.
5. Operate the starter.
RECOIL STARTER (all engine types):
Pull the starter grip lightly until you feel resistance, then pull briskly.
SLOW
ENGINE SWITCH
OFF
ON
HIGH
LOW
8
OPERATION
Return the starter grip gently.
STARTER GRIP
6. If the choke lever has been moved to the CLOSE position to start the engine, gradually
move it to the OPEN position as the engine warms up.
STOPPING THE ENGINE
To stop the engine in an emergency, simply turn the engine switch to the OFF position.
Under normal conditions, use the following procedure.
1. Move the throttle lever to the SLOW position.
Some engine applications use a remotely-mounted throttle control rather than the
engine-mounted throttle lever shown here.
CHOKE LEVER
OPEN
THROTTLE LEVER
SLOW
9
OPERATION
2. Turn the engine switch to the OFF position.
3. Turn the fuel valve lever to the OFF position.
FUEL VALVE
LEVER
OFF
SETTING ENGINE SPEED
Position the throttle lever for the desired engine speed.
Some engine applications use a remotely-mounted throttle control rather than the
engine-mounted throttle lever shown here.
For engine speed recommendations, refer to the instructions provided with the equipment
powered by this engine.
FAST
ENGINE SWITCH
OFF
ON
THROTTLE LEVER
SLOW
10
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