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AE00002 INTRODUCTION Congratulations on your purchase of your new Yamaha. This manual will provide you with a good basic understanding of the operation and maintenance of this machine. If you have any questions regarding the operation or maintenance of your machine, please consult a Yamaha dealer.
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If there is any question concerning this manu- al, please consult your Yamaha deal- Failure to follow WARNING instructions could result in severe injury or death to 9 This manual should be considered a...
RANTIES OF MERCHANTABILITY AND FITNESS authorized Yamaha consumer generator dealer FOR A PARTICULAR PURPOSE WHICH EXCEED will, free of charge, repair or replace, at Yamaha’s THE OBLIGATIONS AND TIME LIMITS STATED IN option, any part adjudged defective by Yamaha THIS WARRANTY ARE HEREBY DISCLAIMED BY due to faulty workmanship or material from the YAMAHA MOTOR CORPORATION, U.S.A.
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Yamaha Motor exactly as specified in the Owner’s Manual? Corporation, U.S.A. by the selling dealer at the A. No. The warranty on a new Yamaha cannot time of your purchase. If you should move after be “voided” or “cancelled.”...
DC output Pull recoil starter Fuel Gasoline Push choke knob in YAMAHA MOTOR CO., LTD MADE IN JAPAN 7CG-25134-10 7VV-24164-10 ENGINE AIR INDEX ( C a l i f o r n i a onl y ) IMPORTANT ENGINE INFORMATION ENGINE FAMILY : zzzzzzzzzzzz REFER TO OWNER'S MANUAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS.
AE00071 SAFETY INFORMATION AE00072 EXHAUST FUMES ARE POISONOUS 9 Never operate the engine in a closed area or it 741-080 may cause unconsciousness and death within a short time. Operate the engine in a well ventilated area. AE01018 FUEL IS HIGHLY FLAMMABLE AND POISONOUS 9 Always turn off the engine when refuelling.
9 Keep the generator at least 1 m (3 ft) from build- ings or other equipment, or the engine may over- heat. a 1 m (3 ft) 741-086 9 Avoid operating the engine with a dust cover. 741-087 9 Be sure to carry the generator only by its carrying handle.
Ground (earth) Lead Diameter: 0.12 mm (0.005 in)/ampere 10 Ampere → 1.2mm (0.05 in) AE00088 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 AE00091 CONNECTION Before the generator can be connected to a build-...
AE00101 CONTROL FUNCTION AE00102 DESCRIPTION 1 Fuel tank 2 Fuel tank cap 3 Fuel tank cap air vent knob 4 Fuel cock knob 5 Air filter cover 6 Spark plug 7 Muffler 8 Choke knob 9 Ground (Earth) terminal 0 Oil filler cap q Recoil starter 793-104a w Carrying handle...
AE00111 OIL WARNING SYSTEM When the oil level falls below the lower level, the engine stops automatically. Unless you refill with oil, the engine will not start again. NOTE: If the engine stalls or does not start, turn the engine switch to "ON"...
Reduce the load to the specified generator rated 763-224a output if the DC protector turns off. If it turns off again, consult a Yamaha dealer. NOTE: Press to reset the DC protector. 1 “RESET” 763-238a 2 “OFF”...
Fuel tank capacity: 707-091 Total: 2.5 L (0.55 Imp gal, 0.66 US gal) 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 number of 91 or higher.
AE01158 ENGINE OIL Make sure the engine oil is at the upper level of the oil filler hole. Add oil as necessary. NOTE: Place the generator on a level surface and check the 700-116 oil level of the oil filler hole. 1 Upper level Recommended oil: å...
AE01109 OPERATION 9 The generator has been shipped without engine oil. Fill with oil or it will not start. 700-127 9 Do not tilt the generator when adding engine oil. This could result in overfilling and damage to the engine. 1 Upper level AE01104 STARTING THE ENGINE...
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4. Pull the choke knob fully out. 1 Choke knob NOTE: The choke is not required to start a warm engine. Push the choke knob in to the original position. 701-049b 5. Pull slowly on the recoil starter until it is engaged, then pull it briskly.
AE01000 APPLICATION RANGE 0.4–0.75 Power factor 0.8–0.95 (Efficiency 0.85) Rated voltage EF1000iS –900W –720W –300W Rated current NOTE: 9 “–” means below. 9 Application wattage indicates when each device is used by itself. 9 The simultaneous usage of AC and DC power is possible but total wattage should not exceed the rated output.
AE01023 CONNECTION Alternating Current (AC) 9 Be sure all electric devices including the lines and plug connections are in good condition before connection to the generator. 9 Be sure any electric devices are turned off before plugging it in. 9 Be sure the total load is within generator rated output.
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AE00953 Overload indicator light The overload indicator light 1 comes on when an overload of a connected electrical device is detected, the inverter control unit overheats, or the AC output voltage rises. The electronic breaker will then activate, stopping power generation in order to protect the gen- 763-225 erator and any connected electric devices.
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9 Reduce the load to the specified generator 762-041 rated output if the DC protector turns off. If it turns off again, consult a Yamaha dealer. NOTE: Press to reset the DC protector. 763-238a 1 “RESET”...
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Never smoke or make and break connections at the battery while charging. Sparks may ignite the battery gas. Battery electrolyte is poisonous and dangerous, causing severe burns, etc. contains sulfuric (sul- phuric) acid. Avoid contact with skin, eyes or clothing. Antidote: EXTERNAL-Flush with water.
AE01025 STOPPING THE ENGINE NOTE: 9 Turn off any electric devices. 9 Turn the economy control switch (Black) to the “3” (OFF) position. 763-222 1 3 “OFF” 1. Disconnect any electric devices. 761-078 2. Turn the engine switch (Red) to the “5” (STOP) position.
Engine Oil Replace Clean. Air Filter Replace if necessary. Clean fuel tank Fuel Filter filter. Replace if necessary. : It is recommended that these items be serviced by a Yamaha dealer. : Related to emission control system. – 20 –...
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14.* Fasteners Correct if necessary. : It is recommended that these items be serviced by a Yamaha dealer. : Related to emission control system. Use only Yamaha specified genuine parts for replacement. Ask an authorized Yamaha dealer for further attention.
5. Install the cover. AE00431 CARBURETOR ADJUSTMENT The carburetor is a vital part of the engine. Adjusting should be left to a Yamaha dealer with the profession- al knowledge, specialized data, and equipment to do so properly. – 22 –...
AE01159 ENGINE OIL REPLACEMENT 1. Place the generator on a level surface and warm up the engine for several minutes. Then stop the engine and turn the fuel cock knob to “OFF”. Turn the fuel tank cap air vent knob clockwise.
NOTE: Recommended engine oil classification: API Service “SE” or “SF”. 8. Wipe the oil drain joint clean, and wipe up any spilled oil. Be sure no foreign material enters the crankcase. 700-117a 9. Install the oil filler cap. 10. Replace the oil drain joint in its original position. 11.
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3. Use a flathead screw driver to pry the spark arrester out from the muffler. 711-070 4. Remove the spark arrester. 4 Spark arrester 711-071 5. Remove the carbon deposits on the muffler screen and spark arrester using a wire brush. When cleaning, use the wire brush lightly to avoid damaging or scratching of the muffler screen and spark arrester.
9. Install the cover. 711-068a AE01029 AIR FILTER 1. Remove the cover 1. 788-001 2. Remove the clip 2 holding the air filter cover 3. 788-002a 3. Remove the air filter cover and element 4. 4. Wash the element in solvent and dry. 5.
The engine should never run without the element; excessive piston and cylinder wear may result. Never use solvent while smoking or in the vicinity of an open flame. 7. Replace the air filter cover in its original position and install the clip. 8.
AE01097 TROUBLESHOOTING Engine won’t start 1. Fuel systems No fuel supplied to combustion chamber. 2 No fuel in tank ..Supply fuel. 707-091 2 Fuel in tank ..• Fuel tank cap air vent knob to “OPEN” (turn it 1 turn counterclockwise). •...
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Engine does not Engine starts. start. Check the following Clean or Replace; Consult O Clogged 9 Fuel line clogging Yamaha dealer. 9 Air cleaner element Consult a Yamaha dealer. clogging. – 29 –...
AE00601 STORAGE Long term storage of your machine will require some preventive procedures to guard against deterioration. AE01095 DRAIN THE FUEL 706-025 1. Remove the fuel tank cap. Drain the fuel from the fuel tank into an approved gasoline container using a commercially available hand siphon.
AND LATER SMALL OFF-ROAD ENGINES. The acronyms conform to the latest version of the SAE’s recommended prac- tice document J1930, “Diagnostic Acronyms, Terms, and Definitions For Electrical/Electronic System”. It is recommended that these items be serviced by a Yamaha dealer. – 31 –...
AE00751 WIRING DIAGRAM 770-044f 1 Main coil w DC receptacle Color code 2 Sub coil e Engine switch Black 3 DC coil r Oil warning light Brown Green 4 DC rectifier t Speed limiter Gray 5 Control unit y Oil level gauge Blue 6 AC pilot light u Ignition coil...
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PRINTED IN JAPAN 04 – 1.2 × 1 PRINTED ON RECYCLED PAPER...