Yamaha EF6300iSDE v7 Owner's Manual
en
Generator
LIT-19626-02-85 7CK-28199-16
PRINTED IN JAPAN 2021.07-0.11 !
(E)
EF6300iSDE
OWNERS MANUAL
Read this manual carefully before operating your Yamaha generator.
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- Read this manual carefully before operating your Yamaha generator. This manual should stay with this generator if it is sold.
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INTRODUCTION
Congratulations on your purchase of your new Yamaha Generator. This manual will provide you with a good basic understanding of the operation and maintenance of this generator. If you have any questions regarding the operation or maintenance of your generator, please consult a Yamaha dealer.
EF6300iSDE OWNERS MANUAL
2021 by Yamaha Motor Corporation, U.S.A. 1st Edition, July 2021 All rights reserved.
Any reprinting or unauthorized use without the written permission of Yamaha Motor Corporation, U.S.A.
is expressly prohibited. Printed in Japan
P/N LIT-19626-02-85
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Particularly important information is distin- guished in this manual by the following notations.
This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety mes- sages that follow this symbol to avoid possible injury or death.
WARNING A WARNING indicates a hazardous sit- uation which, if not avoided, could result in death or serious injury.
NOTICE
A NOTICE indicates special precau- tions that must be taken to avoid dam- age to the generator or other property.
TIP A TIP provides key information to make procedures easier or clearer.
WARNING PLEASE READ AND UNDERSTAND THIS MANUAL COMPLETELY BEFORE OPERATING THE GENERATOR.
TIP 9 Yamaha continually seeks advance-
ments in product design and quality. Therefore, while this manual contains the most current product information available at the time of printing, there may be minor discrepancies between your generator and this manual. If there is any question concerning this manual, please consult a Yamaha dealer.
9 This manual should be considered a permanent part of this generator and should remain with this generator when resold.
* Product and specifications are subject to change without notice.
IMPORTANT MANUAL INFORMATION
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CONTENTS
SAFETY INFORMATION ....................... 1 Exhaust Fumes are Poisonous ........... 1 Carbon Monoxide Poisoning ............... 2 Fuel is Highly Flammable and Poisonous............................................ 3 Engine and Muffler May be Hot .......... 3 Electric Shock Prevention ................... 4 Connection Notes ............................... 4 Connection .......................................... 4 Extension Cord Notes ......................... 4
LOCATION OF IMPORTANT LABELS ................................................. 5
DESCRIPTION ....................................... 7 Control Panel ...................................... 7
CONTROL FUNCTION .......................... 8 Engine Switch ..................................... 8 Oil Warning Light (Red) ...................... 8 CO SENSOR ...................................... 9 AC Protector ...................................... 13 Economy Control Switch ................... 14 G.F.C.I. Receptacle ........................... 15 Voltage Select Switch ....................... 16 Hour Meter ........................................ 17 Power Meter ...................................... 17 AC Pilot Light (Green) ....................... 17 Overload Indicator Light (Red) .......... 18 Fuel Tank Cap ................................... 18 Fuel Cock Knob ................................ 19 Ground (Earth) Terminal ................... 19 Caster Lock Lever ............................. 19
PREPARATION .................................... 20 Fuel ................................................... 20 Engine Oil ......................................... 21 Battery Preparation ........................... 23
PRE-OPERATION CHECK .................. 25 Pre-Operation Check ........................ 25
OPERATION ........................................ 26 Starting The Engine .......................... 26 Stopping The Engine......................... 28 Connection ........................................ 29 Application Range ............................. 31 High Altitude Operation .................... 32
PERIODIC MAINTENANCE ................ 33 Maintenance Chart............................ 33 Spark Plug Inspection ....................... 35 Carburetor Adjustment ...................... 37 Engine Oil Replacement ................... 37 Air Filter ............................................. 39 Muffler Screen and Spark Arrester ... 41 Fuel Tank Filter .................................. 43 Battery ............................................... 44 Recommended Battery ..................... 44 Fuse Replacement ............................ 45 G.F.C.I. Receptacle Test .................... 46
STORAGE ............................................ 47 Drain The Fuel .................................. 47 Engine ............................................... 49 Battery ............................................... 50
TROUBLESHOOTING ......................... 51
SPECIFICATIONS ................................ 55 Dimensions ....................................... 55 Engine ............................................... 55 Generator .......................................... 55 Battery ............................................... 55
CONSUMER INFORMATION .............. 56 Identification Number Records .......... 56 Generator Identification ..................... 56
EXHAUST EMISSION CONTROL SYSTEM AND COMPONENTS ........... 57
WIRING DIAGRAM .............................. 59
YAMAHA EXTENDED SERVICE (Y.E.S.) ................................................ 61
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1
SAFETY INFORMATION
9 This generator is not designed for on-board use. Do not use it while installed on the vehicle.
9 Do not modify the generator or use it with its parts removed.
9 Do not allow children to operate the generator.
9 Do not place any obstacles on the generator.
Exhaust Fumes are Poisonous 9 Using a generator indoors CAN KILL YOU IN
MINUTES. Generator exhaust contains carbon monoxide. This is a poison you cannot see or smell.
9 NEVER use inside a home or garage, EVEN IF doors and windows are open.
9 Only use OUTSIDE and far away from windows, doors, and vents with engine exhaust directed away from any structures.
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Carbon Monoxide Poisoning 9 CO gas is toxic and can cause serious injury or
death.
9 Get fresh air and seek medical care immediately, if you are suspected to be inhaled carbon monox- ide.
9 Early symptoms of carbon monoxide exposure include headache, fatigue, shortness of breath, nausea, and dizziness and so on. Continued exposure to carbon monoxide can cause loss of muscular coordination, loss of consciousness, and then result in death.
9 This generator is equipped with the CO SENSOR system that automatically stops the engine before the surrounding carbon monoxide concentration increases to a dangerous concentration.
9 Do not remove or modify the CO SENSOR sys- tem.
9 Make sure that the CO SENSOR system works correctly.
9 The CO SENSOR cannot prevent all danger asso- ciated with or caused by carbon monoxide. Pay careful attention to the location of the generator.
9 If the CO SENSOR stopped the generator, relo- cate the generator and address symptoms of car- bon monoxide poisoning prior to restart the gen- erator.
9 Install battery-operated or plug-in carbon monox- ide alarms to alert you to potentially dangerous levels of carbon monoxide in accordance with the alarms instructions.
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3
Fuel is Highly Flammable and Poisonous 9 Always turn off the engine when refuelling.
9 Never refuel while smoking or in the vicinity of an open flame.
9 Take care not to spill any fuel on the engine or muffler when refueling.
9 Do not leave the generator inside the vehicle or in the trunk.
9 If you swallow any fuel, inhale fuel vapor, or allow any to get in your eye(s), see your doctor immedi- ately. If any fuel spills on your skin or clothing, immediately wash with soap and water and change your clothes.
9 When operating or transporting the generator, be sure it is kept upright. If it tilts, fuel may leak from the carburetor or fuel tank.
Engine and Muffler May be Hot 9 Place the generator in a place where pedestrians
or children are not likely to touch the generator.
9 Avoid placing any flammable materials near the exhaust outlet during operation.
9 In order to prevent overheating, ensure adequate airflow by keeping the generator at least 1 m (3 ft) from objects or other equipment.
9 Do not operate the engine with a dust cover or other objects covering it.
9 When covering the generator, be sure to do so only after the engine and muffler have completely cooled down.
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4
Electric Shock Prevention 9 Never operate the engine in rain or snow.
9 Never touch the generator with wet hands or elec- trical shock will occur.
9 When the connected electric device is grounded (earthed), always ground (earth) the generator.
9 Connect the ground (earth) terminal to a ground source. In order to prevent electrical shock, the generator must be grounded when using an elec- trical device with a ground plug.
1 Ground (earth) terminal1
1
2
1
2
741-7XFk
Connection Notes 9 Avoid connecting the generator to commercial
power outlet.
9 Avoid connecting the generator in parallel with any other generator.
1 Correct 2 Incorrect
Connection
WARNING Before the generator can be connected to a build- ings electrical system, a licensed electrician must install an isolation (transfer) switch in the build- ings main fuse box. The switch is the connection point for generator power and allows selection of generator or main line power to the building. This will prevent the generator from charging the main power line (backfeeding) when the main power supply has failed or has been turned off for line repair. Backfeeding can electrocute or injure line maintenance personnel. Also, generator and build- ing electrical system damage can occur when nor- mal operating power returns if unit is used without an isolation switch.
Extension Cord Notes Extension cords should be protected by a tough flexi- ble rubber sheath (IEC 245) or the equivalent to with- stand mechanical stresses.
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5
LOCATION OF IMPORTANT LABELS
Please read the following labels carefully before oper- ating this generator. TIP Maintain or replace safety and instruction labels, as necessary.
1
2 3
30A 125
250V
564 87
1 2
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6
3
DISPLACEMENT :
8
7
NOTICE Use the specified spark plug only.
Specified plug:BPR4ES(NGK)
5 6
DANGER Using a generator indoors CAN KILL YOU IN MINUTES.
Generator exhaust contains carbon monoxide. This is a poison you cannot see or smell.
NEVER use inside a home or garage, EVEN IF doors and windows are open.
Only use OUTSIDE and far away from windows, doors, and vents.
7CG-24877-
4
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7
DESCRIPTION
1 Carrying handles (shaded) 2 Fuel tank cap 3 Fuel level gauge 4 Muffler 5 Caster lock lever 6 Oil filler cap 7 Oil drain bolt 8 Battery
Control Panel 1 Hour meter 2 Power meter 3 G.F.C.I. receptacle 4 AC protector 5 AC receptacle 6 Engine switch 7 Fuel cock knob 8 Voltage select switch 9 Ground (earth) terminal 0 Economy control switch q Overload indicator light (Red) w ERR (Error) indicator light
(Orange) e AC pilot light (Green) r WARNING indicator light
(Red) t Oil warning light (Red)
e qt r w 80
7
6
1 3 42 5
9
30A 125
250V
3 121
1 1
7 6 58
4
793-7CKb
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1 2 3
CONTROL FUNCTION
Engine Switch The engine switch controls the ignition system.
1 7 ON Ignition circuit is switched on. The engine can be started.
2 5 STOP Ignition circuit is switched off. The engine will not run.
3 6 START Starting circuit is switched on. The starter motor starts and the engine can be start- ed. Take your hand off the switch immediately after the engine starts.
Oil Warning Light (Red) When the oil level falls below the lower level, the oil warning light comes on and then the engine stops automatically. Unless you refill with oil, the engine will not start again.
TIP If the engine stalls or does not start, turn the engine switch to START. If the oil warning light comes on, the engine oil is insufficient. Add oil and restart.
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9
1 2
CO SENSOR The CO SENSOR is a system that automatically stops the engine before the surrounding CO concentration exceeds a certain level.
WARNING 9 Do not remove or modify the CO SENSOR sys-
tem. 9 The CO SENSOR cannot prevent all danger
associated with or caused by carbon monox- ide. Pay careful attention to the location of the generator.
9 Do not spray any organic solvent on the CO SENSOR.
There are two indicator lights in relation to the CO SENSOR.
1 WARNING indicator light (Red) 2 ERR (Error) indicator light (Orange)
WARNING indicator light (Red) If the CO SENSOR detects a high carbon monoxide concentration, the engine will stop and the WARNING indicator light will flash for approximately 5 minutes.
WARNING Continuous use of the generator in areas with high concentrations of carbon monoxide can cause serious health hazards due to carbon mon- oxide poisoning. If you are in the same area as the generator, evacuate the area immediately. Get fresh air and seek medical attention immediately, if you feel sick or suspect you have inhaled carbon monoxide. Ventilate the area or space where the generator is located.
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If the engine is stopped by the CO SENSOR system, change the operating location of the generator to well- ventilated area.
TIP 9 Place the generator so that the muffler is pointed
in the same direction as the wind is blowing, and the exhaust gas is directed away from buildings, other structures, or vehicles.
9 Avoid placing the generator near devices that emit carbon monoxide, such as other generators.
WARNING 9 Do not operate the generator in an enclosed
or partly enclosed area such as a garage. 9 Do not enclose or cover the generator with
boards or a tent, even if it is outside and away from of a building.
While this indicator light is flashing and the CO SENSOR is activated, the engine cannot be restarted for approximately 5 minutes. Restarting the generator is possible only after the WARNING indicator light is turned off.
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ERR (Error) indicator light (Orange) If the CO SENSOR detects a system malfunction or service life over, the engine will stop automatically and the ERR (Error) indicator will come on approximately 5 minutes.
TIP 9 The CO SENSOR has a limited service life and
must be replaced when it no longer functions. The battery is non-replaceable battery.
9 The generator stopping period and storage period are also in the useful service life of the CO SENSOR.
9 The lithium battery adopted on this sensor con- tains perchlorate, a toxic substance controlled in perchlorate Best Management Practices (BMP) regulations passed by the California legislature. When you discard the lithium battery in California, USA, please follow the related regulations in advance.
Perchlorate material-special handling may apply, see www.dtsc.ca.gov/hazardouswaste/perchlorate
9 Consult a Yamaha dealer for the CO SENSOR replacement.
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On starting the engine Each indicator light flashes 5 times upon starting. When starting the engine, make sure that each indica- tor light flashes 5 times.
WARNING 9 If the indicator lights do not flash 5 times upon
starting, discontinue generator use immedi- ately and consult a Yamaha dealer. The CO SENSOR system may be malfunctioning.
9 If the CO SENSOR WARNING indicator light (red) is flashing, immediately clear the area of all people and animals while moving the gen- erator to an open, outdoor area. Once the gen- erator is relocated to a well-ventilated area, it can be restarted after 5 minutes. Be sure to point the exhaust away from people and build- ings. Thoroughly ventilate the location where the generator had stopped.
9 If the CO SENSOR system is malfunctioning, it cannot warn you of potential high concentra- tions of carbon monoxide. Move the generator to a well-ventilated location and consult a Yamaha dealer.
9 While the CO SENSOR is activated, the engine cannot be restarted for approximately 5 min- utes. Relocate the generator and address symptoms of carbon monoxide poisoning prior to restart the generator.
NOTICE
If you stop the engine in the following situations, the CO SENSOR system may not be able to restart the engine immediately. Wait approximately 15 sec- onds before restarting the engine. 9 By the engine switch. 9 By the oil level warning device. 9 By running out of gasoline.
TIP If the indicator lights come on or flash abnormally, check TROUBLESHOOTING (See page 52).
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1
42
3 AC Protector Protectors are equipped for the G.F.C.I. receptacle and the AC receptacle. The AC protector 1 trips when total amount of the G.F.C.I. receptacles loads exceed 20A. The AC protector 3 trips when the AC receptacle loads exceed 30A.
1 AC protector 2 G.F.C.I. receptacles 3 AC protector 4 AC receptacle
NOTICE
Reduce the load to within specified the generator rated output if the AC protector turns off. If the turns off again, consult a Yamaha dealer.
763-238a
1
2
Press the switches to Reset the AC protectors.
1 Reset 2 OFF
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Economy Control Switch
1 I ON When the economy control switch is turned to ON, the economy control unit controls the engine speed according to the connected load. The results are bet- ter fuel consumption and less noise.
2 3 OFF When the economy control switch is turned to OFF, the engine runs at the rated r/min (3400 r/min) regard- less of whether is a load connected or not.
TIP The economy control switch must be turned to OFF when using electric devices that require a large start- ing current, such as a compressor of a submersible pump.
1 2
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2
1
3
763-060
G.F.C.I. Receptacle
WARNING TO REDUCE THE CHANCE OF ELECTRICAL SHOCK: 9 Do not attempt to operate electric devices if
the ground fault circuit interrupter reset button pops out repeatedly during use.
9 Test the ground fault circuit interrupter during the pre-operation checks according to the maintenance instructions on page 46.
9 Remember that only receptacle labeled GFCI have ground fault circuit interrupter protec- tion.
The G.F.C.I. (Ground Fault Circuit Interrupter) shuts off power to the protected receptacles if a ground fault (electrical leak) is detected. If the reset button pops out, the electric devices con- nected into the receptacle may be faulty. If this hap- pens, check the electric devices carefully. If the elec- tric devices appears to be in good condition, press the reset button firmly until a click is heard. This will restore power. If the reset button pops out again, dis- connect all the electric devices immediately. Have the electric devices inspected and repaired by a qualified repairperson before attempting to use them again.
1 G.F.C.I. (Ground Fault Circuit Interrupter) 2 Reset button 3 Pops out
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Voltage Select Switch
NOTICE
Do not operate the voltage select switch while the engine is running.
1 120/240V When the voltage select switch is turned to 120/240V, the generator supplies both 120V and 240V.
2 120V When the voltage select switch is turned to 120V, the generator supplies 120V only.
1 2
TIP If you operate the generator with the voltage select switch in the 120/240V-position, the electric current will be limited for the 120V-receptacles. When you use either receptacle 1 or 2 and recepta- cle 3 at the same time, the total electric current pro- vided will be equal to or even less than 22.9A. For example: If the 240V-receptacle provides 10A, the 120V -receptacles 1 and 2 can be used up to 12.9A each. In case the load exceeds 22.9A, the overload indicator light will turn on and the generator will stop. (At this moment the segments of the power meter may not reach 10) If you operate the generator with the voltage select switch in the 120V-position, the receptacles 1 and 2 can supply rated current (45.8A).
1 G.F.C.I. receptacle (120V) 2 AC receptacle (120V) 3 AC receptacle (120V/240V)
2 3
1
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1
1
1
Hour Meter The hour meter shows the total number of hours the generator has been run.
1 Hour meter
Power Meter The power meter shows the amount of electric current used by a barmeter. The generator output is normal when the segments of the barmeter appear.
1 Power meter
TIP When 10 segments appear, the generator has almost reached its rated output.
AC Pilot Light (Green) The AC pilot light comes on when the engine starts and produces power.
1 AC pilot light (Green)
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Overload Indicator Light (Red) The overload indicator light comes on when an over- load of a connected electrical device is detected, the inverter control unit overheats, or the AC output volt- age rises. Then, the AC protector will trip, stopping power generation in order to protect the generator and any connected electric devices. The AC pilot light (Green) will go off and the overload indicator light (Red) will stay on, but the engine will not stop running.
1 Overload indicator light (Red)
When the overload indicator light comes on and power generation stops, proceed as follows: 1. Turn off any connected electric devices and stop
the engine.
2. Reduce the total wattage of connected electric devices within the rated output.
3. Check for blockages in the cooling air inlet and around the control unit. If any blockages are found, remove them.
4. After checking, restart the engine.
TIP The overload indicator light may come on for a few seconds at first when using electric devices that require a large starting current, such as a compressor or a submersible pump. However, this is not a mal- function.
1
707-7XFb
Fuel Tank Cap Remove the fuel tank cap by turning it counterclock- wise.
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19
1
ON
OFF
2
3
705-073d
1
Fuel Cock Knob The fuel cock supplies fuel from the fuel tank to the carburetor. The fuel cock has two positions.
1 Fuel cock knob
2 ON With the knob in this position, fuel flows to the carbu- retor. Normal using is done with the knob in this posi- tion.
3 OFF With the knob in this position, fuel will not flow. Always turn the knob to this position when the engine is not running.
Ground (Earth) Terminal Ground (earth) terminal connects the earth line for prevention of electric shock. When the electric device is grounded, be sure to ground the generator, too.
1 Ground (earth) terminal
1
2
788-7CKh
Caster Lock Lever The caster lock lever stops moving the generator.
1 Release 2 Lock
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20
1
2
707-7XF
707-7XFc
3 4
707-7XFa
PREPARATION
Fuel
WARNING 9 Fuel is highly flammable and poisonous.
Check SAFETY INFORMATION (See page 3) carefully before filling.
9 Do not overfill the fuel tank, otherwise it may overflow when the fuel warms up and expands.
9 Never refuel while smoking or in the vicinity of an open flame.
9 Touch a metal surface on the generator before refueling to discharge any static electricity. Sparks could cause fire or explosion.
9 After adding fuel, make sure the fuel tank cap is tightened securely.
NOTICE
9 Immediately wipe off spilled fuel with a clean, dry, soft cloth, since fuel may deteriorate painted surfaces or plastic parts.
9 Use only unleaded gasoline. The use of leaded gasoline will cause severe damage to internal engine parts.
9 If foreign materials enter the fuel tank, they may clog the fuel line. Be sure the fuel tank fil- ter is installed before adding fuel.
Make sure there is sufficient fuel in the tank. When refueling, be sure to fill the tank to the bottom edge of the fuel tank filter.
1 Fuel level gauge 2 Red line
F Full Red line 2 Empty
3 Fuel level 4 Fuel tank filter
Recommended fuel: Unleaded gasoline Fuel tank capacity: Total: 17.0 L (4.49 US gal, 3.74 Imp gal)
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5 700-7XFa
Engine Oil
NOTICE
The generator has been shipped without engine oil. Do not start the engine until you have filled it with the sufficient engine oil.
1. Place the generator on a level surface.
2. Remove the screws.
1 Screws
3. Detach the hooks by pulling the rear cover toward you.
2 Hooks
4. Disengage the projections on the rear cover by pulling down the cover, and then remove the rear cover.
3 Projections 4 Rear cover
5. Remove the oil filler cap.
5 Oil filler cap
1
22
3 3
4
Your Yamaha engine has been designed to use regu- lar unleaded gasoline with a pump octane number ((R + M)/2) of 86 or higher, or research octane num- ber of 91 or higher.
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22
700-103c
6
700-006
6. Fill the specified amount of the recommended engine oil, and then install and tighten the oil filler cap.
6 Correct level
Recommended engine oil: Recommended oil brand: YAMALUBE Available oil grade: API SE type or higher JASO MA or MB Available viscosity index: 10W-30 or 10W-40 Engine oil quantity: 1.3 L (1.37 US qt, 43.95 oz)
7. Install the rear cover and tighten the screws.
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Battery Preparation (See page 44)
WARNING 9 Electrolyte is poisonous and dangerous since
it contains sulfuric acid, which causes severe burns. Avoid any contact with skin, eyes or clothing and always shield your eyes when working near batteries. In case of contact, administer the following FIRST AID.
9 EXTERNAL: Flush with plenty of water. 9 INTERNAL: Drink large quantities of water or
milk and immediately call a physician. 9 EYES: Flush with water for 15 minutes and
seek prompt medical attention. 9 Batteries produce explosive hydrogen gas.
Therefore, keep sparks, flames, cigarettes, etc., away from the battery and provide sufficient ventilation when charging it in an enclosed space.
9 KEEP THIS AND ALL BATTERIES OUT OF THE REACH OF CHILDREN.
1. Remove the screws.
1 Screws
2. Detach the hooks by pulling the rear cover toward you.
2 Hooks
3. Disengage the projections on the rear cover by pulling down the cover, and then remove the rear cover.
3 Projections 4 Rear cover
1
22
3 3
4
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4. Remove the wing nuts and battery plate.
5 Wing nuts 6 Battery plate
5. Remove the battery.
7 Battery
6. Fill the battery with the electrolyte. Refer to the instruction sheet included with the
electrolyte for filling instructions.
q
762-7CKd
0
89
762-7XFc
7. Connect the positive lead (Red) to the positive (+) battery terminal.
8 Positive lead (Red) 9 Positive (+) battery terminal
8. Install the battery onto the tray.
9. Install the battery plate and tighten the wing nuts.
10. Connect the negative lead (Black) to the negative () battery terminal.
0 Negative lead (Black) q Negative () battery terminal
11. Install the rear cover and tighten the screws.
5
7
6
762-7XFa
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PRE-OPERATION CHECK
WARNING If any item in the pre-operation check is not work- ing properly, have it inspected and repaired before operating the generator.
The condition of a generator is the owners responsi- bility. Vital components can start to deteriorate quickly and unexpectedly, even if the generator is unused.
TIP Pre-operation checks should be made each time the generator is used.
Pre-Operation Check Fuel (See page 20) 9 Check fuel level in fuel tank. 9 Refuel if necessary.
Fuel Line 9 Check fuel hose for crack or damage. 9 Replace if necessary.
Engine Oil (See page 21) 9 Check oil level in engine. 9 If necessary, add recommended oil to specified
level. 9 Check generator for oil leakage.
Abnormal Running Conditions 9 If any abnormal running conditions are observed,
please consult a Yamaha dealer.
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30A 125
250V
705-073
ON
OFF
1
OPERATION
WARNING 9 Never operate the engine in a closed area or it
may cause unconsciousness and death within a short time. Operate the engine in a well ven- tilated area.
9 Before starting the engine, do not connect any electric devices.
9 Clean dust, dirt or water off the receptacle before use.
NOTICE
The generator has been shipped without engine oil. Do not start the engine until you have filled it with the sufficient engine oil.
Starting The Engine 1. Turn the economy control switch to OFF.
1 3 OFF
1
2. Select the voltage select switch position according to the operating voltage of the electric device.
1 120/240V 2 120V
3. Turn the fuel cock knob to ON.
1 ON
1 2
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1
4. Turn the engine switch to ON.
1 7 ON
5. Turn the engine switch to START. Take your hand off the switch immediately after
the engine starts.
1 6 START
NOTICE
If the engine fails to start, release the switch, wait a few seconds, then try again. Each attempt should be as short as possible to preserve the battery. Do not crank the engine more than 5 sec- onds on any one attempt.
1
6. When turning the engine switch to START, make sure that both the red and orange indicators are flashing.
NOTICE
If either of them does not flash, consult a Yamaha dealer since the CO SENSOR system is most likely malfunctioning.
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30A 125
250V
1
705-073a
ON
OFF1
Stopping The Engine TIP After the engine is stopped the engine cannot be restarted for approximately 15 seconds.
1. Turn off any electric devices.
2. Disconnect any electric devices.
3. Turn the engine switch to STOP.
1 5 STOP
4. Turn the fuel cock knob to OFF.
1 OFF
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Connection Alternating Current (AC)
WARNING Be sure any electric devices are turned off before plugging them in.
NOTICE
9 Be sure all electric devices including the lines and plug connections are in good condition before connection to the generator.
9 Be sure the total load is within generator rated output.
9 Be sure the receptacle load current is within receptacle rated current.
9 Do not operate the voltage select switch while the engine is running.
TIP 9 Make sure to ground (earth) the generator. When the electric device is grounded, be sure to
ground the generator, too. 9 The power output lead of the portable generator
(stator winding) is insulated from the frame and ground pin of the AC receptacles.
Therefore, an electric device that requires ground- ing through the AC receptacle when plugged in to one of the output leads might not operate correct- ly.
1. Select the voltage select switch position according to the operating voltage of the electric device.
1 120/240V 2 120V
1 2
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1
4. Make sure the AC pilot light is on.
1 AC pilot light (Green)
5. Turn the economy control switch to ON
1 I ON
6. Turn on any electric devises. TIP The economy control switch must be turned to OFF to increase engine speed to rated r/min.
1
TIP To supply both 120V and 240V power sources from the 4-blade plug receptacle needs special knowledge of the wiring plug. Please contact a trained electri- cian for the wiring of the plugs.
2. Start the engine.
3. Plug in to AC receptacle.
30A 125
250V
779-017a
Y W
XG
120V
120V 240V
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Application Range When using the generator, make sure the total load is within rated output of a genera- tor. Otherwise, generator damage may occur.
AC
Power factor 1 0.80.95 0.40.75
(Efficiency 0.85)
5500 W 4400 W 1870 W
Approximate Wattages of Common Tools or Equipment
Tools Wattage Equipment Wattage
Chain saw 10001800 Space heater 1500
Circular saw 12001600 Hot plate 1200
Sanders 2501500 Crock pot 1200
Router 1001500 Television 250
Leaf blower 10001400 Lights 250
Shop vacuum 7001400 Fan 100
Drill (depends on size) 2501200
String trimmer 6001100
Paint sprayer 5001000
Miter saw 5001000
Hedge clippers 3001000
Planer 300900
TIP 9 means below. 9 Application wattage indicates when each device is
used by itself. 9 The overload indicator light comes on when total
wattage exceeds the application range. (See page 18 for more details.)
1 Overload indicator light (Red)
1
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High Altitude Operation This engine may require a high altitude carburetor kit to ensure correct engine opera- tion at altitudes above 4000 ft. (1219 meters). If you operate your engine at altitudes above 4000 ft. (1219 meters) consistently, have your local Yamaha dealer perform the necessary carburetor modification. This engine should be operated in its original config- uration below 4000 ft. (1219 meters) as damage may occur if high altitude carburetor kit is installed and operated below 4000 ft. (1219 meters).
NOTICE
9 Do not overload. The total load of all electrical appliances must not exceed the supply range of the generator. Overloading could result in damage to the generator.
9 When supplying precision equipment, electronic controllers, PCs, electronic computers, microcomputer-based equipment or battery chargers, keep the generator a sufficient distance away to prevent electrical interference from the engine. Also ensure that electrical noise from the engine does not inter- fere with any other electrical devices located near the generator.
9 If the generator is to supply medical equipment, advice should first be obtained from the equipment manufacturer, a medical professional or hospi- tal.
9 Some electrical appliances or general-purpose electric motors have high starting currents, that may exceed the total capacity of your Yamaha genera- tor. Consult the equipment manufacturer for further advice.
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PERIODIC MAINTENANCE
Safety is an obligation of the owner. Periodic inspection, adjustment and lubrication will keep your generator in the safest and most efficient condition possible. The most impor- tant points of generator inspection, adjustment, and lubrication are explained on the fol- lowing pages.
WARNING If you are not familiar with maintenance work, have a Yamaha dealer do it for you.
Maintenance Chart
WARNING Stop the engine before starting maintenance work.
NOTICE
Use only Yamaha specified genuine parts for replacement. Ask an authorized Yamaha dealer for further information.
Item Routine Pre-
operation check
Every
6 months or 100 Hr
12 months or 300 Hr
Spark plug 9 Check condition. 9 Clean and replace if necessary.
Fuel 9 Check fuel level and leakage.
Fuel hose 9 Check fuel hose for cracks or damage. 9 Replace if necessary.
Engine oil 9 Check oil level in engine.
9 Replace. (*1)
Air filter element 9 Check condition. 9 Clean.
(*2)
Muffler screen 9 Check condition. 9 Clean and replace if necessary.
Spark arrester 9 Check condition. 9 Clean and replace if necessary.
Fuel tank filter 9 Clean and replace if necessary.
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Item Routine Pre-
operation check
Every
6 months or 100 Hr
12 months or 300 Hr
Crankcase breather hose
9 Check breather hose for cracks or damage.
9 Replace if necessary.
Cylinder head 9 Decarbonize cylinder head. 9 More frequently if necessary.
After every 500 Hrs.
Valve clearance 9 Check and adjust when engine is cold.
Idle speed 9 Check and adjust idle speed.
Fittings / fasteners 9 Check all fittings and fasteners. 9 Correct if necessary.
Visual inspection for potential damage
*1 ....Initial replacement of the engine oil is after one month or 20 hours of operation. *2 ....The air filter element needs to be replaced more frequently when using in unusually wet or
dusty areas. .....Since these items require special tools, data and technical skills, have a Yamaha dealer per-
form the service.
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760-7XF
a
760-001a
Spark Plug Inspection The spark plug is an important engine component, which should be checked periodically.
1. Remove the screws.
1 Screws
2. Detach the hooks by pulling the front cover toward you.
2 Hooks
3. Disengage the projections on the front cover by pulling down the cover, and then remove the front cover.
3 Projections 4 Front cover
4. Remove the spark plug cap and then remove the spark plug.
5. Check for discoloration and remove the carbon. The porcelain insulator around the center elec-
trode of spark plug should be a medium-to-light tan color.
6. Check the spark plug type and gap.
Standard spark plug: BPR4ES (NGK) Spark plug gap: 0.70.8 mm (0.0280.031 in)
a Gap
TIP The spark plug gap should be measured with a wire thickness gauge and, if necessary, adjusted to specifi- cation.
1
22
3 3
4
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7. Install the spark plug.
Spark plug torque: 20 Nm (2.0 kgfm, 15 lbft)
TIP If a torque wrench is not available when installing a