
CONTENTS
SAFETY INFORMATION ....................... 1
Exhaust fumes are poisonous ............ 2
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
LABELS ................................................. 5
DESCRIPTION ...................................... 7
Control panel ....................................... 8
Engine switch ...................................... 9
Oil warning light (red) .......................... 9
Economy control switch .................... 10
DC protector ...................................... 10
Fuel cock lever .................................. 11
Caster lock lever ............................... 11
PREPARATION .................................... 12
Fuel ................................................... 12
Engine oil .......................................... 13
Ground (earth) terminal .................... 14
Battery ............................................... 15
PRE-OPERATION CHECK .................. 17
Pre-operation check .......................... 17
OPERATION ........................................ 18
Starting the engine ............................ 18
Application range .............................. 21
High altitude operation ...................... 22
Connection ........................................ 23
Stopping the engine .......................... 28
PERIODIC MAINTENANCE ................ 29
Maintenance chart ............................ 29
Spark plug inspection ....................... 31
Carburetor adjustment ...................... 32
Engine oil replacement ..................... 32
Muffler screen and spark arrester ..... 34
Air filter .............................................. 35
Fuel tank filter ................................... 37
Battery ............................................... 38
Recommended battery ...................... 38
Fuse replacement ............................. 39
TROUBLESHOOTING ......................... 40
STORAGE ............................................ 42
Drain the fuel ..................................... 42
Engine ............................................... 43
Battery ............................................... 44
EXHAUST EMISSION CONTROL
SYSTEM AND COMPONENTS ........... 45
SPECIFICATIONS ................................ 46
Dimensions ....................................... 46
Engine ............................................... 46
Generator .......................................... 46
CONSUMER INFORMATION .............. 47
Identification number records ............ 47
Machine identification ....................... 47
WIRING DIAGRAM .............................. 48
EF3000iS .......................................... 48
EF3000iSE ........................................ 49
EF3000iSEB ...................................... 50
YAMAHA EXTENDED SERVICE
(Y.E.S.) ................................................ 51
7CH-28199-18.indd 3 2015/04/01 13:54:17