7TA-9-11 hyoshi 10/24/03 4:14 PM Page 1

OWNER’S MANUAL

Generator

PRINTED ON RECYCLED PAPER

PRINTED IN JAPAN

03 9 08 – 0.5 × 1 !

LIT-19626-01-16

EF1000A

7TA-28199-11

7TA-9-11 hyoshi 10/24/03 4:14 PM Page 2

7TA-9-11A 10/24/03 4:42 PM Page A

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.

PRI-I.D. NUMBER

PRI-I.D.

CODE

MODEL

SERIAL No.

AE00012

IDENTIFICATION NUMBER RECORDS

Record your Primary I.D., and serial numbers in the spaces provided, to assist you in ordering spare parts from a Yamaha dealer.

Also record and keep these I.D. numbers in a separate place in case your machine is stolen.

790-062

AE00011

MACHINE IDENTIFICATION

The machine serial number is stamped in the location as shown.

790-044

NOTE:

The first three digits of these numbers are for model identification; the remaining digits are the unit production number. Keep a record of these numbers for reference when ordering parts from a Yamaha dealer.

AE00022

EF1000A

OWNER’S MANUAL

© 2003 by Yamaha Motor Corporation, U.S.A.

1st Edition, August 2003

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-19626-01-16

7TA-9-11A 10/24/03 4:42 PM Page B

AE00032 w

PLEASE READ AND UNDERSTAND

THIS MANUAL COMPLETELY BEFORE

OPERATING THE MACHINE.

851-005

NOTE:

9 Yamaha continually seeks advancements 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 engine and this manual. If there is any question concerning this manual, please consult your Yamaha dealer.

9 This manual should be considered a permanent part of this engine and should remain with this engine when resold.

Particularly important information is distinguished in this manual by the following notations.

-

The Safety Alert Symbol means ATTEN-

TION! BECOME ALERT! YOUR SAFETY

IS INVOLVED!

w

Failure to follow WARNING instructions could result in severe injury or death to the engine operator, a bystander, or a person inspecting or repairing the engine.

c C

A CAUTION indicates special precautions that must be taken to avoid damage to the engine.

NOTE:

A NOTE provides key information to make procedures easier or clearer.

7TA-9-11A 10/24/03 4:42 PM Page C

AE00041

CONTENTS

LIMITED WARRANTY (EF- AND

EDL-SERIES) ........................................1

LOCATION OF IMPORTANT

LABELS .................................................3

SAFETY INFORMATION .......................4

EXHAUST FUMES ARE

POISONOUS ......................................4

FUEL IS HIGHLY FLAMMABLE AND

POISONOUS ......................................4

ENGINE AND MUFFLER MAY

BE HOT ..............................................4

ELECTRIC SHOCK PREVENTION ....5

CONNECTION NOTES ......................6

CONNECTION....................................6

EXTENSION CORD NOTES ..............7

CONTROL FUNCTION ..........................8

DESCRIPTION ...................................8

OIL WARNING SYSTEM ....................9

ENGINE SWITCH ...............................9

A.C. PROTECTOR .............................9

PRE-OPERATION CHECK .................10

FUEL.................................................10

ENGINE OIL .....................................11

GROUND (Earth) ..............................11

OPERATION ........................................12

STARTING THE ENGINE.................12

APPLICATION RANGE ....................13

CONNECTION..................................14

STOPPING THE ENGINE ................15

PERIODIC MAINTENANCE ................16

MAINTENANCE CHART ..................16

SPARK PLUG INSPECTION ............18

CARBURETOR ADJUSTMENT .......18

ENGINE OIL REPLACEMENT .........19

AIR FILTER ......................................20

FUEL COCK .....................................21

FUEL TANK FILTER.........................21

MUFFLER (SPARK ARRESTER).....22

TROUBLESHOOTING......................23

STORAGE ...........................................25

DRAIN THE FUEL ............................25

ENGINE ............................................25

EXHAUST EMISSION CONTROL

SYSTEM AND COMPONENTS ...........26

SPECIFICATIONS ...............................27

DIMENSIONS ...................................27

ENGINE ............................................27

GENERATOR ...................................27

WIRING DIAGRAM ..............................28

CARRYING HANDLE

INSTALATION .....................................29

7TA-9-11A 10/24/03 4:42 PM Page 1

AE01120

YAMAHA MOTOR CORPORATION U.S.A.

EF- AND EDL-SERIES GENERATOR LIMITED WARRANTY

Yamaha Motor Corporation, U.S.A. hereby warrants that new Yamaha consumer generators purchased from an authorized Yamaha consumer generator dealer in the continental United

States will be free from defects in material and workmanship for the period of time stated herein, subject to certain stated limitations.

2. Give notice to an authorized Yamaha consumer generator dealer of any and all apparent defects within ten (10) days after discovery, and make the unit available at that time for inspection and repairs at such dealer’s place of business.

THE PERIOD OF WARRANTY Any new EFseries or EDL-series Yamaha Generator purchased for private, non-commercial use from an authorized Yamaha consumer generator dealer in the continental United States will be warranted against defects in material or workmanship for a period two (2) years from date of purchase, subject to exclusions noted herein.

Any Yamaha non-commercial generator purchased and utilized for commercial or rental applications will be warranted for a period one (1) year from the date of purchase, subject to exclusions noted herein.

WARRANTY TRANSFER: To transfer the warranty from the original purchaser to any subsequent purchaser(s), it is imperative that the unit be inspected and registered for warranty by an authorized Yamaha consumer generator dealer.

In order for this warranty to remain in effect, this inspection and registration must take place within ten (10) days after transfer. An inspection and registration fee will be charged for this service.

In no case will the warranty be extended beyond the original period.

DURING THE PERIOD OF WARRANTY any authorized Yamaha consumer generator dealer will, free of charge, repair or replace, at

Yamaha’s option, any part adjudged defective by

Yamaha due to faulty workmanship or material from the factory. Parts used in warranty repairs will be warranted for the balance of the product’s warranty period. All parts replaced under warranty become property of Yamaha Motor

Corporation U.S.A.

YAMAHA MOTOR CORPORATION, U.S.A.

MAKES NO OTHER WARRANTY OF ANY KIND,

EXPRESSED OR IMPLIED. ALL IMPLIED WAR-

RANTIES OF MERCHANTABILITY AND FITNESS

FOR A PARTICULAR PURPOSE WHICH EXCEED

THE OBLIGATIONS AND TIME LIMITS STATED

IN THIS WARRANTY ARE HEREBY DISCLAIMED

BY YAMAHA MOTOR CORPORATION, U.S.A.

AND EXCLUDED FROM THIS WARRANTY.

GENERAL EXCLUSIONS from this warranty shall include any failures caused by: a. Installation of parts or accessories that are not qualitatively equivalent to genuine

Yamaha parts.

b. Abnormal strain, neglect, or abuse.

c. Lack of proper maintenance.

d. Accident or collision damage.

SOME STATES DO NOT ALLOW LIMITATIONS

ON HOW LONG AN IMPLIED WARRANTY

LASTS, SO THE ABOVE LIMITATION MAY NOT

APPLY TO YOU. ALSO EXCLUDED FROM THIS

WARRANTY ARE ANY INCIDENTAL OR CONSE-

QUENTIAL DAMAGES INCLUDING LOSS OF

USE. SOME STATES DO NOT ALLOW THE

EXCLUSION OR LIMITATION OF INCIDENTAL

OR CONSEQUENTIAL 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.

SPECIFIC EXCLUSIONS from this warranty shall include parts replaced due to normal wear or routine maintenance.

YAMAHA MOTOR CORPORATION, U.S.A.

Post Office Box 6555

Cypress, California 90630 THE CUSTOMER’S RESPONSIBILITY under this warranty shall be to:

1. Operate and maintain the generator as specified in the appropriate Owner’s Manual;

– 1 –

7TA-9-11A 10/24/03 4:42 PM Page 2

WARRANTY QUESTIONS AND ANSWERS

Q. What costs are my responsibility during the warranty period?

A. The customer’s responsibility includes all costs of normal maintenance service, nonwarranty repairs, accident damages, as well as oil and spark plugs.

Q. What are some examples of “abnormal” strain, neglect, or abuse?

A. These terms are general and overlap each other in areas. Specific examples include:

Running the machine out of oil; lack of proper maintenance; operating the machine with a broken or damaged part which causes another part to fail; and so on. If you have any specific questions on operation or maintenance, please contact your dealer for advice.

Q. Does the warranty cover incidental costs such as transportation due to a failure?

A. No. The warranty is limited to repair of the machine itself.

Q. May I perform any or all of the recommended maintenance shown in the Owner’s Manual instead of having the dealer do them?

A. Yes, if you are a qualified mechanic and follow the procedures specified in the Owner’s and Service Manual. We do recommend, however, that items requiring special tools or equipment be done by a Yamaha generator dealer.

Q. Will the warranty be void or cancelled if I do not operate or maintain my new Yamaha exactly as specified in the Owner’s Manual?

A. No. The warranty on a new Yamaha cannot be “voided” or “cancelled.”

However, if a particular failure is caused by operation or maintenance other than as shown in the Owner’s Manual, that failure may not be covered under warranty.

Q. What responsibility does my dealer have under this warranty?

A. Each Yamaha generator dealer is expected to:

1. Check the operation of the generator before sale.

2. Explain the operation, maintenance, and warranty requirements to your satisfaction at the time of sale, and upon your request at any later date.

In addition, each Yamaha generator dealer is held responsible for his setup, service and warranty repair work.

Q. Is the warranty transferable to second owners?

A. Yes. The remainder of the existing warranty can be transfered upon request.

The unit has to be inspected and reregistered by an authorized Yamaha generator dealer for the policy to remain effective.

CUSTOMER SERVICE

If your machine requires warranty service, you must take it to any authorized Yamaha generator dealer within the continental United States. Be sure to bring your warranty registration identification or other valid proof of the original date of purchase. If a question or problem arises regarding warranty, first contact the owner of the dealership. Since all warranty matters are handled at the dealer level, this person is in the best position to help you. If you are still not satisfied and require additional assistance, please write:

YAMAHA MOTOR CORPORATION U.S.A.

CUSTOMER RELATIONS DEPARTMENT

P.O. BOX 6555

Cypress, California 90630

CHANGE OF ADDRESS

The federal government requires each manufacturer to maintain a complete, up-to-date list of all first purchasers against the possibility of a safety-related defect and recall. This list is compiled from the purchase registrations sent to Yamaha

Motor Corporation, U.S.A. by the selling dealer at the time of your purchase. If you should move after you have purchased your new generator, please advise us of your new address by sending a postcard listing your Yamaha model name, engine number, dealer number (or dealer’s name) as it is shown on your warranty identification, your name and new mailing address. Mail to:

YAMAHA MOTOR CORPORATION, U.S.A.

WARRANTY DEPARTMENT

P.O. Box 6555

Cypress, California 90630

This will ensure that Yamaha Motor Corporation,

U.S.A. has an up-to-date registration record in accordance with federal law.

– 2 –

7TA-9-11A 10/24/03 4:42 PM Page 3

AE00062

LOCATION OF IMPORTANT LABELS

Please read the following labels carefully before operating this machine.

NOTE:

Maintain or replace safety and instruction labels, as necessary.

1 r t

792-005 w

WARNING

Electrocution Or property damage can occur: Do not connect this generator to any building ’s electrical system unless an isolation switch has been installed by a licensed electrician. Refer to the owner’s manual.

e q

2

HOT EXHAUST

792-006

3 q

WARNING

8

8

8

8

8

8

READ THE OWNER‘S MANUAL AND ALL LABELS BEFORE OPERATING.

ONLY OPERATE IN WELL-VENTILATED AREA.

EXHAUST GAS CONTAINS POISONOUS CARBON MONOXIDE.

CHECK FOR SPILLED FUEL OR FUEL LEAKS.

STOP ENGINE BEFORE REFUELING.

DO NOT OPERATE NEAR FLAMMABLE MATERIALS.

ELECTROCUTION CAN OCCUR IF GENERATOR IS USED IN RAIN,

SNOW, OR NEAR WATER. KEEP THIS UNIT DRY AT ALL TIMES.

q

AVERTISSEMENT

8

8

8

8

8

8

LISEZ LE MODE D‘EMPLOI ET TOUTES LES ETIQUETTES AVANT DE

FAIRE FONCTIONNER LA MACHINE.

FAITES FONCTIONNER UNIQUEMENT DANS DES LIEUX BIEN AERES.

LES GAZ D‘ECHAPPEMENT CONTIENNENT DU MONOXYDE DE CARBONE.

VERIFIEZ SI DU CARBURANT A ETE RENVERSE DU S‘IL FUIT.

ARRETEZ LE MOTEUR AVANT DE FAIRE LE PLEIN DE CARBURANT.

N‘UTILISEZ PAS A PROXIMITE DE MATERIAUX INFLAMMABLES.

IL Y A RISQUE D‘ELECTROCUTION SI LE GENERATEUR FONCTIONNE

SOUS LA PLUIE, DANS LA NEIGE, OU PRES DE L‘EAU. GARDEZ LA

MACHINE AU SEC EN TOUTES CIRCONSTANCES.

7TA-24162-10

4

IMPORTANT ENGINE INFORMATION

ENGINE FAMILY : zzzzzzzzzzzz

E M

REFER TO OWNER'S MANUAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS.

THIS ENGINE MEETS zzzz zzzz CALIFORNIA EMISSION REGULATIONS FOR SMALL OFF-ROAD ENGINES.

THIS ENGINE CONFORMS TO PHASE 2 U.S.EPA REGULATIONS FOR SMALL NONROAD ENGINES.

EMISSIONS COMPLIANCE PERIOD:CATEGORY A (EPA)

YAMAHA MOTOR CO. LTD zzz -

2179R

zz

DISPLACEMENT: zzz J

IGNITION TIMING & IDLE MIXTURE

IDLE SPEED:

VALVE LASH ( A ) IN: z .

zz ~ z .

zz

NO OTHER ADJUSTMENTS NEEDED.

zzzz ~ zzzz rpm AT NO LOAD

FUEL: THIS ENGINE IS CERTIFIED TO OPERATE ON UNLEADED GASOLINE.

ENGINE OIL:

SAE 10 W-30 TYPE SE

EX: z .

zz ~ z .

zz

5

ENGINE AIR INDEX ( C a l i f o r n i a o n l y )

0

MOST C L E A N

2 4 6 8 1 0

LEAST CLEAN

N O T E : T H E L O W E R T H E A I R I N D E X , T H E L E S S T H E P O L L U T I O N

T H I S E N G I N E I S C E R T I F I E D T O B E E M I S S I O N C O M P L I A N T

F O R T H E F O L L O W I N G U S E :

MODERATE INTERMEDIATE

CHECK OWNERS M A N U A L F O R F U R T H E R D E T A I L S

EXTENDED

T H I S L A B E L T O B E R E M O V E D B Y T H E U L T I M A T E P U R C H A S E R O N L Y !

– 3 –

7TA-9-11A 10/24/03 4:42 PM Page 4

742-001

742-011

AE00071

SAFETY INFORMATION

AE00072

EXHAUST FUMES ARE POISONOUS

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 ventilated area.

AE00075

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 refuelling.

9 If you swallow any fuel, inhale fuel vapor, or allow any to get in your eye(s), see your doctor immediately. If any fuel spills on your skin or clothing, immediately wash with soap and water and change your clothes.

742-003

9 When operating or transporting the machine, be sure it is kept upright. If it tilts, fuel may leak from the carburetor or fuel tank.

742-014

AE00862

ENGINE AND MUFFLER MAY BE HOT

9 Place the machine in a place where pedestrians or children are not likely to touch the machine.

742-015

9 Avoid placing any flammable materials near the exhaust outlet during operation.

742-012

– 4 –

7TA-9-11A 10/24/03 4:42 PM Page 5 a

9 Keep the machine at least 1 m (3 ft) from buildings or other equipment, or the engine may overheat.

a 1 m (3ft)

742-020a

9 Avoid operating the engine with a dust cover.

q

742-016

9 Be sure the carrying handle is securely installed before picking up the generator.

9 Be sure to carry the generator only by its carrying handle(s).

1 Carrying handle

741-044

AE00083

ELECTRIC SHOCK PREVENTION

9 Never operate the engine in rain or snow.

741-038

9 Never touch the machine with wet hands or electrical shock will occur.

742-002

– 5 –

7TA-9-11A 10/24/03 4:42 PM Page 6 q w q w q

741-045

9 Be sure to ground (earth) the generator.

NOTE:

Use ground (earth) lead of sufficient current capacity.

1 Lead diameter

Ground (earth) Lead

Diameter:

0.12 mm (0.005 in)/ampere

EX;

10 Ampere → 1.2mm

(0.05 in)

742-025

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 w

Before the generator can be connected to a building’s electrical system, a licensed electrician must install an isolation (transfer) switch in the building’s 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 building electrical system damage can occur when normal operating power returns if unit is used without an isolation switch.

– 6 –

7TA-9-11A 10/24/03 4:42 PM Page 7

AE00868

EXTENSION CORD NOTES

9 When using an extension cord, its total length should not exceed

60 meters for cross section of 1.5 mm square and

100 meters for cross section of 2.5 mm square or more.

9 This extension cord should be protected by a tough flexible rubber sheath (IEC 245) or the equivalent to withstand mechanical stresses.

– 7 –

7TA-9-11A 10/24/03 4:42 PM Page 8 w

!2

i

!0

o !5

q r e

!1

793-021

AE00101

CONTROL FUNCTION

AE00102

DESCRIPTION

1 Fuel tank

2 Fuel tank cap

3 Fuel cock

4 Air filter cover

5 Spark plug

6 Muffler

7 Choke lever

8 AC receptacle

9 Engine switch

0 Ground (Earth) terminal q Recoil starter w AC protector e Carrying handle r Fuel level gauge t Oil filler cap

!2

u

!3

!4

t y

793-022 i

!0

793-023

– 8 –

7TA-9-11A 10/24/03 4:42 PM Page 9

AE00112

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, check the oil level. If the oil is insufficient, add oil and restart.

q w

700-096

763-164

AE00122

ENGINE SWITCH

The engine switch controls the ignition system.

1 I 7 : “ON”

Ignition circuit is switched on.

The engine can be started.

2 3 5 : “STOP”

Ignition circuit is switched off.

The engine will not run.

w q

763-165

763-006a

AE00134

AC PROTECTOR

The AC protector turns off automatically when the load exceeds the generator rated output.

c C

Reduce the load to within specified generator rated output if the AC protector turns off. If it turns off again, consult your Yamaha dealer.

1 I “ON”

2 3 “OFF”

NOTE:

Press to reset the AC protector.

– 9 –

7TA-9-11A 10/24/03 4:42 PM Page 10 q

742-019

AE00202

PRE-OPERATION CHECK

NOTE:

Pre-operation checks should be made each time the generator is used.

Carrying Handle: Before picking up generator, make sure the carrying handle is securely installed.

w

The engine and muffler will be very hot after the engine has been run. Avoid touching the engine and muffler while they are still hot with any part of your body or clothing during inspection or repair.

707-033b

707-069

707-037

707-070

AE00856

FUEL

Make sure there is sufficient fuel in the tank.

Recommended fuel: Unleaded gasoline

Fuel tank capacity:

Total: 3.8 L (0.84 Imp gal, 1.0 US gal)

Your Yamaha engine has been designed to use regular unleaded gasoline with a pump octane number ((R

+ M)/2) of 86 or higher, or research octane number of

91 or higher.

1 Fuel level gauge

“F”

“E”

Full

Empty w

9 Fuel is highly flammable and poisonous.

Check “SAFETY INFORMATION” (See page 4) carefully before refueling.

9 Do not fill above the top of the fuel filter or it may overflow when the fuel heats up later and expands.

9 Wipe up any spilled fuel immediately.

9 After refueling, make sure the tank cap is tightened securely.

– 10 –

7TA-9-11A 10/24/03 4:42 PM Page 11 q

700-071b

0°C 25°C

A YAMALUBE 4(10W-30)

D SAE 10W

32°F

C SAE #20 B SAE #30

80°F

700-065

700-072

AE00222

ENGINE OIL

Make sure the engine oil is at the upper level of the oil filler hole.

Add oil as necessary.

1 Upper level

Recommended oil:

å YAMALUBE 4 (10W-30) or SAE 10W-30 type SE motor oil

∫ SAE #30

ç SAE #20

∂ SAE 10W

Engine oil quantity:

0.43 L (0.38 lmp qt, 0.45 US qt)

NOTE:

Recommended engine oil classification:

API Service “SE” or “SF”.

c C

The generator has been shipped without engine oil. Fill with oil or it will not start.

741-046

AE00241

GROUND (Earth)

Make sure to ground (earth) the generator.

Check “SAFETY INFORMATION” on page 6.

– 11 –

7TA-9-11A 10/24/03 4:42 PM Page 12 q q

700-072a

761-054

AE00955

OPERATION

NOTE:

The generator has been shipped without engine oil.

Fill with oil or it will not start.

1 Upper level

AE00806

STARTING THE ENGINE

NOTE:

Before starting the engine, do not connect any electric devices.

1. Turn the fuel cock lever to the “ON” position.

1 “ON”

705-037 q

2. Turn the engine switch to the “I 7 ” position.

1 I 7 “ON”

763-164c q

701-025c

704-013

3. Turn the choke lever to the “ 1 ” position.

1 Choke lever

NOTE:

The choke is not required to start a warm engine.

Turn the choke lever to the operating position.

4. Pull slowly on the recoil starter until it is engaged, then pull it briskly.

5. After the engine starts, warm up the engine until the engine does not stop when the choke lever is returned to the operating position.

– 12 –

7TA-9-11A 10/24/03 4:42 PM Page 13 q

701-025d

6. Turn the choke lever back to the operating position.

1 Operating position

AE00812

APPLICATION RANGE

AC

Power factor

EF1000A

779-006a

1

–800W

779-006c

0.8–0.95

–640W

779-006b

0.4–0.75

(Efficiency 0.85)

–270W

NOTE:

9 “–” means below.

9 Application wattage indicates when each device is used by itself.

c C

Be sure the total load is within generator rated output otherwise generator damage will occur.

NOTE:

Some precision equipment is voltage sensitive and may require a more uniform voltage supply than portable generators provide. Examples include some medical equipment, personal computers, and some inverters that sense peak and RMS voltage values.

Consult the precision-equipment vendor before relying on any portable generator to provide power to such equipment.

– 13 –

7TA-9-11A 10/24/03 4:42 PM Page 14

761-001

AE00821

CONNECTION

Alternating Current (AC) c C

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.

9 Be sure the receptacle load current is within receptacle rated current.

1. Wind the power lead 2 or 3 turns around handle.

2. Start the engine.

3. Plug into AC receptacle.

761-054a

763-165

4. Press in the AC protector and turn on any electric devices.

c C

Reduce the load to the specified generator rated output if the AC protector turns off. If it turns off again, consult a Yamaha dealer.

w q

763-005a

NOTE:

Press to reset the AC protector.

1 “ON”

2 “OFF”

– 14 –

7TA-9-11A 10/24/03 4:42 PM Page 15

761-054

AE00834

STOPPING THE ENGINE

NOTE:

Turn off any electric devices.

1. Disconnect any electric devices.

2. Turn the engine switch to the “ 3 5 ” position.

1 3 5 “STOP” q

763-164d q

705-038

3. Turn the fuel cock lever to “OFF”.

1 “OFF”

– 15 –

7TA-9-11B 10/24/03 4:49 PM Page 16

AE00401

PERIODIC MAINTENANCE

AE00403

MAINTENANCE CHART

Regular maintenance is most important for best performance and safe operation.

w

Stop the engine before starting maintenance work.

No.

Item Remarks

Pre-Operation check

(daily)

Initial

1 month or 20 Hr

Every

3 months or 50 Hr

6 months or 100 Hr

12 months or 300 Hr

1.

**

2.*

**

3.* breather system

4.*

**

5.

**

6.

Engine Oil

7.

**

8.

Fuel Filter

Check condition.

Adjust gap and clean. Replace if necessary.

Check and adjust when engine is cold.

Check breather hose for cracks or damage. Replace if necessary.

Check and adjust engine idle speed.

Check for leakage.

Retighten or

*replace gasket if necessary.

Check muffler screen and spark arrester. Clean/ replace if necessary.

Check oil level

Replace

Clean.

Replace if necessary.

Clean fuel cock and fuel tank filter. Replace if necessary.

0

0

0

*

: It is recommended that these items be serviced by a Yamaha dealer.

**

: Related to emission control system.

– 16 –

0

0

0

0

0

0

0

0

7TA-9-11B 10/24/03 4:49 PM Page 17

No.

Item Remarks

Pre-Operation check

(daily)

Initial

1 month or 20 Hr

Every

3 months or 50 Hr

6 months or 100 Hr

12 months or 300 Hr

9.

Fuel Line

10.

11.* Cooling System

12.

Starting System

14.*

Fittings/

Fasteners

Check fuel hose for crack or damage. *Replace if necessary.

Check choke operation.

Check for fan damage.

Check recoil starter operation.

More frequently if necessary.

Check all fittings and fasteners.

Correct if necessary.

0

0

0

*

: It is recommended that these items be serviced by a Yamaha dealer.

**

: Related to emission control system.

0

0

0 c C

Use only Yamaha specified genuine parts for replacement. Ask an authorized

Yamaha dealer for further attention.

– 17 –

7TA-9-11B 10/24/03 4:49 PM Page 18 a

760-017

760-001a

AE00423

SPARK PLUG INSPECTION

You should periodically remove and inspect the spark plug.

1. Check for discoloration and remove the carbon.

Standard electrode color:

Tan Color

2. Check the spark plug type and gap.

Standard Spark Plug:

BPR6HS (NGK)

Spark Plug Gap:

0.6–0.7 mm (0.024–0.028 in) a Gap

3. Install the spark plug.

Spark Plug Torque:

20 N•m (2 kgf•m, 14 lbf•ft)

AE00431

CARBURETOR ADJUSTMENT

The carburetor is a vital part of the engine. Adjusting should be left to a Yamaha dealer with the professional knowledge, specialized data, and equipment to do so properly.

– 18 –

7TA-9-11B 10/24/03 4:49 PM Page 19 w q

AE00413

ENGINE OIL REPLACEMENT

1. Place the machine on a level surface and warm up the engine for several minutes.

Then stop the engine.

2. Remove the oil filler cap.

3. Place an oil pan under the engine. Drain the oil completely.

4. Check the oil filler cap and O-ring.

If damaged, replace.

1 Oil filler cap

2 O-ring

700-097 q

700-072a

0°C 25°C

A YAMALUBE 4(10W-30)

D SAE 10W

32°F

C SAE #20 B SAE #30

80°F

700-065

5. Add engine oil to the upper level.

1 Upper level

Recommended oil:

å YAMALUBE 4 (10W-30) or SAE 10W-30 type SE motor oil

∫ SAE #30

ç SAE #20

∂ SAE 10W

Engine oil quantity:

0.43 L (0.38 Imp qt, 0.45 US qt)

NOTE:

Recommended engine oil classification:

API Service “SE” or “SF”.

c C

Be sure no foreign material enters the crankcase.

– 19 –

7TA-9-11B 10/24/03 4:49 PM Page 20

710-043a

AE00451

AIR FILTER

1. Remove the air filter cover and element.

2. Wash the element in solvent and dry.

3. Oil the element and squeeze out excess oil.

The element should be wet but not dripping.

Recommended oil:

Foam-air-filter oil or

SAE #20 motor oil c C

Do not wring out the element.

This could cause it to tear.

4. Insert the element into the air filter.

NOTE:

Be sure the element sealing surface matches the air filter so there is no air leak.

c C

The engine should never run without the element; excessive piston and cylinder wear may result.

w

Never use solvent while smoking or in the vicinity of an open flame.

– 20 –

7TA-9-11B 10/24/03 4:49 PM Page 21

AE00461

FUEL COCK w

Never use or be near fuel and solvent while smoking or in the vicinity of an open flame.

1. Stop the engine.

2. Turn the fuel cock lever to “OFF”.

3. Remove the fuel cock cup and gasket.

4. Clean the cup with solvent and wipe it off.

5. Check the gasket. Replace it if damaged.

6. Reinstall the gasket and fuel cock cup.

w

Be sure the fuel cock cup is tightened securely.

q

705-066

AE00471

FUEL TANK FILTER

1. Remove the fuel tank cap and filter.

1 Filter

2. Clean the filter with solvent. If damaged, replace.

3. Wipe the filter and insert it.

w

Be sure the tank cap is tightened securely.

707-043b

– 21 –

7TA-9-11B 10/24/03 4:49 PM Page 22 q

742-019

AE00444

MUFFLER (SPARK ARRESTER) w

The engine and muffler will be very hot after the engine has been run. Avoid touching the engine and muffler while they are still hot with any part of your body or clothing during inspection or repair.

1. Remove the muffler protector 1 .

711-039

2. Remove the plate 2 .

w

711-040

3. Tap the muffler lightly, then take out the loose carbon deposits from inside the muffler.

4. Reinstall by reversing the removal procedure.

711-041

– 22 –

7TA-9-11B 10/24/03 4:49 PM Page 23

707-069

AE00512

TROUBLESHOOTING

Engine won’t start

1. Fuel systems

No fuel supplied to combustion chamber.

2 No fuel in tank .... Supply fuel.

2 Clogged fuel line .... Clean fuel line.

2 Foreign matter in fuel cock .... Clean fuel cock.

2 Clogged carburetor .... Clean carburetor.

705-037a

2. Engine oil system

Insufficient

2 Oil level is low .... Add engine oil.

700-072

763-164e

3. Electrical systems

2 Engine switch to “ON”.

Poor spark

2 Spark plug dirty with carbon or wet .... Remove carbon or wipe spark plug dry.

2 Faulty ignition system .... Consult dealer.

4. Compression

Insufficient

2 Worn out piston and cylinder .... Consult dealer.

2 Loose cylinder head nuts .... Tighten nuts properly.

2 Damaged gasket .... Replace gasket.

760-009

– 23 –

7TA-9-11B 10/24/03 4:49 PM Page 24

AE00515

A ENGINE DOES NOT START

H Turn the engine switch and fuel cock lever to the “ON” position and then pull the recoil starter.

E Check engine oil level.

C Does not start

791-001f

D Engine starts.

F OK

Consult a

Yamaha dealer.

791-001c

G Level low

Add engine oil.

H Pull the recoil starter and check the spark plug for spark strength.

(See “WARNING”)

791-001b

791-001g w

9 To prevent FIRE HAZARDS be sure fuel is not present in the spark plug area.

9 To prevent FIRE HAZARDS be sure to place the spark plug as far way as possible from the spark plug hole and carburetor area.

9 To prevent ELECTRIC SHOCK do not hold spark plug lead with hand while testing.

I Engine does not start.

J

Engine starts.

K Check the spark plug.

9 Type:

9 Gap:

L Incorrect

Replace or

Adjust Gap.

791-001d

M OK

Clean the spark plug.

N Check the following

9 Fuel cock clogging

9 Air cleaner element clogging.

O Clogged

P OK

– 24 –

Q Clean or Replace; Consult a

Yamaha dealer.

R Consult a Yamaha dealer.

7TA-9-11B 10/24/03 4:49 PM Page 25 q e w r a

AE00601

STORAGE

Long term storage of your machine will require some preventive procedures to guard against deterioration.

AE00611

DRAIN THE FUEL

1. Drain the fuel tank, fuel cock, and carburetor float bowl.

a Carburetor drain plug

2. Pour a cup of SAE 10W30 or 20W40 motor oil into the tank.

3. Shake the tank to coat the inner surfaces thoroughly.

4. Drain off the excess oil.

707-038

AE00621

ENGINE

1. Remove the spark plug, pour about one tablespoon of SAE 10W30 or 20W40 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.

2. Pull the recoil starter until you feel compression.

Then stop pulling. (This prevents the cylinder and valves from rusting).

3. Clean exterior of the generator and apply a rust inhibitor.

4. Store the generator in a dry, well-ventilated place, with the cover placed over it.

5. The generator must remain in a vertical position when stored, carried or operated.

712-022

– 25 –

7TA-9-11B 10/24/03 4:49 PM Page 26

AE00789

EXHAUST EMISSION CONTROL SYSTEM

AND COMPONENTS

Item Acronym

9 CARB. ASSY., LH. & JT., ......................CARB (Carburetor)

CARBURETOR2

9 T.C.I. MAGNETO ASSY. & ....................EI (Electronic Ignition)

PLUG, SPARK

9 CRANKCASE1 & HEAD, .......................PCV (Positive Crankcase

CYLINDER1 Ventilation)

9 AIR FILTER ASSY. ................................ACL (Air Cleaner)

9 MUFF., 2, CAP, NET, WIRE2 &

ARRESTER, SPARK

The above items and the corresponding acronyms are provided in accordance with U.S.

EPA REGULATIONS FOR NEW NONROAD SPARK-IGNITION NONHANDHELD

ENGINES and the CALIFORNIA REGULATIONS FOR 1995 AND LATER SMALL OFF-

ROAD ENGINES.

The acronyms conform to the latest version of the SAE’s recommended practice document J1930, “Diagnostic Acronyms, Terms, and Definitions For Electrical/Electronic

System”.

It is recommended that these items be serviced by a Yamaha dealer.

– 26 –

7TA-9-11B 10/24/03 4:49 PM Page 27

AE00701

SPECIFICATIONS

AE00702

DIMENSIONS

Overall Length

Overall Width

Overall Height

Dry Weight

Unit mm (in) mm (in) mm (in) kg (lb)

EF1000A

399 (15.7)

305 (12.0)

410 (16.1)

23 (50.7)

AE00705

ENGINE

Unit

Type

Cylinder Arrangement

Displacement

Bore

×

Stroke

Rated Output

Operation Hours

Fuel

Fuel Tank Capacity

Engine Oil Quantity

Ignition System

Spark Plug: Type

Gap

Noise Level* cm 3 mm (in) kW(HP)/r/min

Hr

L (Imp gal, US gal)

L (Imp qt, US qt) mm (in) dB (A)

* : Measured at rated operation from 7 m (23 ft) distance.

EF1000A

Forced air cooled 4-stroke gasoline OHV

Inclined, 1 cylinder

84

50.0

×

43.0 (1.97

×

1.69)

1.5 (2.0)/3,600

5.5

Unleaded gasoline

3.8 (0.84, 1.00)

0.43 (0.38, 0.45)

CDI

BPR6HS (NGK)

0.6–0.7 (0.024–0.028)

63

AE00707

GENERATOR

AC Output

Rated Voltage

Rated Frequency

Rated Current

Rated Output

Safty Device: Type

Unit

V

Hz

A

VA

EF1000A

120

60

6.7

800

AC Protector

– 27 –

7TA-9-11B 10/24/03 4:49 PM Page 28

AE00751

WIRING DIAGRAM q w o y

Br

W/R

B

B

Br

W/R W/R B

Br

!0

O

B

!1

B/W

Br

W/R

B

O

G

G

Br

R

Br

R

G

G

G/Y i r u

Br t

G/Y

R e

G/Y

!2

B/W

Br

W/R

B

O

B/W B

770-009

1 Stator assembly

2 Rotor assembly

3 Condenser

4 AC protector

5 AC receptacle

6 Oil level switch

7 Engine switch

8 C.D.I. unit

9 C.D.I. magneto

0 Ignition coil q Spark plug w Earth terminal

Color code

B Black

Br Brown

G Green

Gy Gray

R Red

O Orange

B/W Black/White

Y Yellow

W/R White/Red

Y/R Yellow/Red

– 28 –

7TA-9-11B 10/24/03 4:49 PM Page 29

AE00765

CARRYING HANDLE INSTALLATION

– 29 –

794-002

7TA-9-11 hyoshi 10/24/03 4:14 PM Page 1

OWNER’S MANUAL

Generator

PRINTED ON RECYCLED PAPER

PRINTED IN JAPAN

03 9 08 – 0.5 × 1 !

LIT-19626-01-16

EF1000A

7TA-28199-11