Generator OWNER’S MANUAL Read this manual carefully before operating this machine. EF1000iS LIT-19626-01-67 7CG-28199-14...
Read this manual carefully before operating this machine. This manual should stay with this machine if it is sold.
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.
If there is any question concerning this manu- A TIP provides key information to make al, please consult a Yamaha dealer. procedures easier or clearer. 9 This manual should be considered a permanent part of this engine and should remain with this engine when resold.
ENGINE SWITCH ........7 ENGINE ..........37 OIL WARNING LIGHT (red)....7 GENERATOR ........37 ECONOMY CONTROL SWITCH..7 WIRING DIAGRAM.......38 DC PROTECTOR ........8 YAMAHA MOTOR CORPORATION, U.S.A. FUEL TANK CAP AIR VENT KNOB ..8 EF SERIES GENERATORS FUEL COCK KNOB ......9 3-YEAR LIMITED WARRANTY....39 PRE-OPERATION CHECK....10 YAMAHA OUTDOOR POWER FUEL..........10...
Stop engine before refueling. Fuel Gasoline Do not operate near flammable materials. YAMAHA MOTOR POWERED PRODUCTS CO.,LTD. Electrocution can occur if generator is used in rain, snow, MADE IN JAPAN or near water. Keep this unit dry at all times.
AE00071 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 Be sure to carry the generator only by its carrying handle.
AE01018 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. 741-081 9 Take care not to spill any fuel on the engine or muffler when refuelling.
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 741-087 cooled down. AE01020 ELECTRIC SHOCK PREVENTION 9 Never operate the engine in rain or snow.
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 WARNING Before the generator can be connected to a build- ing’s electrical system, a licensed electrician must install an isolation (transfer) switch in the build- ing’s main fuse box.
AE00101 DESCRIPTION 1 Fuel tank 2 Fuel tank cap 3 Fuel tank cap air vent knob 4 Spark plug 5 Carrying handle 6 Fuel cock knob 7 Choke knob 8 Ground (earth) terminal 9 Recoil starter 0 Air filter cover q Oil filler cap w Muffler 793-104a...
AE00939 ENGINE SWITCH The engine switch controls the ignition system. 7 “ON” Ignition circuit is switched on. The engine can be started. 763-220 2 5 “STOP” Ignition circuit is switched off. The engine will not run. AE00111 OIL WARNING LIGHT (red) When the oil level falls below the lower level, the oil warning light (red) comes on and then the engine stops automatically.
DC protector turns off. If the DC protector turns off again, stop using the device immediately and consult a Yamaha dealer. AE01021 FUEL TANK CAP AIR VENT KNOB The fuel tank cap is provided with an air vent knob to stop fuel flow.
AE01034 FUEL COCK KNOB The fuel cock knob is used to supply fuel from the fuel tank to the carburetor. 1 Fuel cock knob 763-227 2 “ON” With the knob in this position, fuel flows to the carbure- tor. Normal using is done with the knob in this position. 3 “OFF”...
Fuel tank capacity: Total: 2.5 L (0.66 US gal, 0.55 Imp gal) 707-091 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.
WARNING 9 Fuel is highly flammable and poisonous. Check “SAFETY INFORMATION” (See page 3) carefully before refueling. 9 Do not fill above the “LEVEL” mark (red) in the fuel filter or it may overflow when the fuel 707-092 heats up later and expands. 9 After refueling, make sure the tank cap is tight- ened securely.
AE01158 ENGINE OIL Make sure the engine oil is at the upper level of the oil filler hole. Add oil as necessary. Place the generator on a level surface and check the 700-116 oil level of the oil filler hole. 1 Upper level Recommended engine oil: å...
AE01109 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.
4. Turn the engine switch to “ON”. 1 7 “ON” 763-223 5. Pull the choke knob fully out. 1 Choke knob The choke is not required to start a warm engine. Push the choke knob in to the original position. 701-049b 6.
AE01000 APPLICATION RANGE 0.4–0.75 Power factor 0.8–0.95 (Efficiency 0.85) Rated voltage EF1000iS –900W –720W –300W Rated current 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) 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.
AE00953 OVERLOAD INDICATOR LIGHT (red) The overload indicator light (red) 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.
AE01100 BATTERY CHARGING NOTICE Do not connect a VRLA (Valve Regulated Lead Acid) battery. To charge a VRLA battery, a special (constant-voltage) battery charger is required. 9 The generator DC rated voltage is 12V. 9 Start the engine first, and then connect the gener- ator to the battery for charging.
“RESET”. If the DC protector turns off again, stop charging the battery immediately and consult a Yamaha dealer. 9 Follow instructions in the owner’s manual for the battery to determine the end of battery charging.
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.
AE01025 STOPPING THE ENGINE Turn off any electric devices. 1. Turn the economy control switch to “OFF”. 1 3 “OFF” 763-222 2. Disconnect any electric devices. 761-078 3. Turn the engine switch to the “STOP”. 1 5 “STOP” 763-223a 4. Turn the fuel cock knob to “OFF”. 1 “OFF”...
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. AE00403 MAINTENANCE CHART WARNING Stop the engine before starting maintenance work.
*1·····Initial replacement of the engine oil is after one month or 20 hours of operation. *2·····The air filter element needs to be cleaned more frequently when using in unusually wet or dusty areas. #····· Since these items require special tools, data and technical skills, have a Yamaha dealer perform the ser- vice.
AE01026 SPARK PLUG INSPECTION The spark plug is an important engine component, which should be checked periodically. 1. Remove the cover, and then remove the spark plug cap. 760-025 1 Cover 2. Remove the spark plug with a tool. 3. 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.
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. AE01159 ENGINE OIL REPLACEMENT WARNING Avoid draining the engine oil immediately after stopping the engine.
5. Place an oil pan under the engine. Tilt the genera- tor to drain the oil completely. 6. Place the generator on a level surface and remove the oil drain joint. 700-120 7. Add engine oil to the upper level of the filler hole using the oil filler guide.
AE01028 MUFFLER SCREEN AND SPARK ARRESTER WARNING The engine and muffler will be very hot after the engine has been run. Avoid touching the engine and muffler while they 741-091 are still hot with any part of your body or clothing during inspection or repair.
5. Remove the carbon deposits on the muffler screen and spark arrester using a wire brush. NOTICE When cleaning, use the wire brush lightly to avoid damaging or scratching of the muffler screen and 711-075 spark arrester. 6. Check the muffler screen and spark arrester. Replace them if damaged.
AE01029 AIR FILTER 1. Remove the cover. 1 Cover 788-001 2. Remove the clips holding the air filter case cover. 2 Clip 3 Air filter case cover 788-002a 3. Remove the air filter case cover and foam element. 4 Foam element 4.
Be sure the foam element sealing surface matches the air filter so there is no air leak. 7. Install the air filter case cover in its original posi- tion and install the clips. 8. Install the cover. AE00471 FUEL TANK FILTER WARNING Never use the gasoline while smoking or in the vicinity of an open flame.
763-223b Poor spark 2 Spark plug dirty with carbon or wet ..Remove carbon or wipe spark plug dry. 2 Faulty ignition system ..Consult a Yamaha deal- 791-001d AE00785 Generator won’t produce power 2 Safety device (AC) to “OFF” ..Stop the engine, then restart.
Replace or Clean the spark hand while testing. adjust gap. plug. Dose not spark Clean Check the following O Clogged 9 Fuel line clogging replace Engine does not start. 9 Air cleaner element clogging. Consult a Yamaha dealer. – 32 –...
AE00601 STORAGE Long term storage of your machine will require some preventive procedures to guard against deterioration. AE01177 DRAIN THE FUEL 1. Turn the engine switch to “STOP”. 1 5 “STOP” 2. Remove the fuel tank cap. Extract the fuel from the fuel tank into an approved gasoline container using a commercially available handsiphon.
6. Remove the screw and cover. 1 Cover 788-001 7. Drain the fuel remaining in the carburetor into an approved container by loosening the drain screw on the carburetor float chamber. Drain s crew 8. Tighten the drain screw. 707-103 9.
AE00621 ENGINE Perform the following steps to protect the cylinder, pis- ton ring, etc. from corrosion. 1. Remove the spark plug, pour about one table- spoon of SAE 10W-30 or 20W-40 motor oil into the spark plug hole and reinstall the spark plug. Recoil start the engine by turning over several times (with ignition off) to coat the cylinder walls with oil.
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. – 36 –...
AE00701 SPECIFICATIONS AE00702 DIMENSIONS Unit EF1000iS Overall Length mm (in) 450 (17.7) Overall Width mm (in) 240 (9.4) Overall Height mm (in) 380 (15.0) Dry Weight kg (lb) 12.7 (28.0) AE00704 ENGINE EF1000iS Unit Type Air cooled 4-stroke gasoline OHV...
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 Blue 5 Control unit y Oil level gauge Orange 6 AC pilot light u Ignition coil...
Yamaha generator service dealer will, All 1995 and Later EF Models free of charge, repair or replace, at Yamaha’s Two (2) years from the original purchase date option, any part judged defective by Yamaha due to faulty workmanship or material from the factory.
TIAL DAMAGES, SO THE ABOVE EXCLUSION MAY NOT APPLY TO YOU. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE. YAMAHA MOTOR CORPORATION, U.S.A. Post Office Box 6555 Cypress, California 90630 – 40 –...
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.”...
If any evaporative emission- coverage, you should contact Yamaha Customer related part on your equipment is defective, the Relations at 1-800-962-7926. part will be repaired or replaced by Yamaha. YAMAHA MOTOR CORPORATION, USA Post Office Box 6555 Cypress, California 90630...
Yamaha recommends that you retain all receipts covering maintenance on your SORE engine, but Yamaha cannot deny warranty solely for the lack of receipts or for your failure to ensure the performance of all scheduled maintenance.
instructions required by subsection (d) must be warranted for the warranty period defined in Subsection (b)(2). If any such part fails during the period of warranty coverage, it must be repaired or replaced by the manufacturer according to Subsection (4) below. Any such part repaired or replaced under the warranty must be warranted for the remaining warranty period.
This work must be done at an authorized Yamaha dealer. Give notice to an authorized Yamaha dealer of any apparent defects(s) within a reasonable period of time after discovery. The SORE engine must be made available for inspection by an authorized Yamaha dealer.
This warranty does not cover damage resulting from accidents, acts of nature, or other events or occur- rences beyond the control of Yamaha. Yamaha Motor Corporation, U.S.A. expressly disclaims responsi- bility for any and all consequential damages, such as loss of time, inconvenience, loss or use of the SORE engine, or commercial loss.
9 Y.E.S. is flexible. You can choose the plan that’s right for you: 12 months, 24 months or 36 months coverage. 9 Y.E.S. is administered by the same Yamaha people that handle your warranty - and it shows in the comprehensive coverage benefits. There are no hour limitations and Y.E.S. covers manufacturing defects just like your warranty.
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PRINTED IN JAPAN 2011.04-0.5×1 ! PRINTED ON RECYCLED PAPER...