Yamaha Ef2000is 2 Manual

Generator
LIT-19626-01-68
7DK-28199-11
PRINTED ON RECYCLED PAPER
PRINTED IN JAPAN
2011.05-2.5×1 !
(E)
EF2000iS
OWNER’S MANUAL
Read this manual carefully before operating this machine.
 7DK-9-11_hyoshi  11.4.13 16:27  Page 1 

Read this manual carefully before operating this machine. This manual
should stay with this machine if it is sold.
 7DK-9-11_hyoshi  11.4.13 16:27  Page 2 

AE00002
INTRODUCTION
Congratulations on your purchase of your new Yamaha.
This manual will provide you with a good basic understanding of the operation and main-
tenance of this machine.
If you have any questions regarding the operation or maintenance of your machine,
please consult a Yamaha dealer.
EF2000iS
OWNER’S MANUAL
© 2011 by Yamaha Motor Corporation, U.S.A.
1st Edition, February 2011
All rights reserved.
Any reprinting or unauthorized use 
without the written permission of 
Yamaha Motor...

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.
A WARNING indicates a hazardous situ-
ation which, if not avoided, could result
in death or serious injury.
A NOTICE indicates special precau-
tions that must be taken to avoid dam-
age to the machine or other property.
TIP
A TIP...

SAFETY INFORMATION........................1
EXHAUST FUMES ARE 
POISONOUS .......................................1
FUEL IS HIGHLY FLAMMABLE AND
POISONOUS .......................................2
ENGINE AND MUFFLER MAY BE 
HOT......................................................2
ELECTRIC SHOCK PREVENTION .....3
CONNECTION NOTES .......................4
CONNECTION .....................................4
EXTENSION CORD NOTES ...............4
LOCATION OF IMPORTANT...

– 1 –
1
7DK-036
7DK-001
AE00071
SAFETY INFORMATION
9This generator is not designed for on-board use.
Do not use it while installed on the vehicle.
9Do not modify the generator or use it with its parts
removed.
9Do not allow children to operate the generator.
AE00072
EXHAUST FUMES ARE POISONOUS
9Never 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. 9Be sure to carry the generator only by its carrying
handle...

– 2–
7DK-007
a9Keep the machine at least 1 m (3 ft) from buildings
or other equipment, or the engine may overheat.
a1 m (3 ft)
7DK-002
7DK-003
7DK-004
7DK-005
7DK-006
AE00843
ENGINE AND MUFFLER MAY BE HOT
9Place the machine in a place where pedestrians or
children are not likely to touch the machine.
9Avoid placing any flammable materials near the
exhaust outlet during operation.
AE00075
FUEL IS HIGHLY FLAMMABLE AND 
POISONOUS
9Always turn off the engine when refuelling.
9Never refuel while smoking or in...

– 3–
9Connect the ground lead of the machine to the
ground (earth) terminal 1and connect the end to
the ground electrode buried in the ground.
1
7DK-011
7DK-008a
7DK-009
7DK-010
AE00083
ELECTRIC SHOCK PREVENTION
9Never operate the engine in rain or snow.
9Never touch the machine with wet hands or electri-
cal shock will occur. 9Do not operate the engine with a dust cover or
other objects covering it.
9When covering the generator, be sure to do so only
after the engine and muffler have completely
cooled...

– 4–
7DK-012
1
2
1
2
AE00088
CONNECTION NOTES
9Avoid connecting the generator to commercial
power outlet.
9Avoid connecting the generator in parallel with any
other generator.
1Correct
2Incorrect
AE00091
CONNECTION
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. The switch is the connection
point for generator power and allows selection of
generator or main line power to the...

– 5–
AE00062
LOCATION OF IMPORTANT LABELS
Please read the following labels carefully before oper-
ating this machine.
TIP
Maintain or replace safety and instruction labels, as
necessary.
1
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, 
door, and vents.
1
2
7DK-013
3
4
5 6
7DK-014
 7DK-9-11_a...