Yamaha EF7000 Service Manual page 120

4. Main coil AC voltage
9 Remove the generator cover.
(Refer to "CONTROL BOX" on 3-1).
9 Connect the pocket tester (AC 300 V) to
the main coil terminal.
9 Start the engine (with no load).
A
B
A EF7200DE
B Except for EF7200DE
Main coil AC voltage:
120 V (White–Red):
126.6 V
240 V (White–Blue):
255.1 V
220 V (White–Red):
236 V
230 V (White–Red):
236 V
MEETS
SPECIFICATION
5. AC switch (N.F.B.)
9 Check the AC switch (N.F.B.) position.
ON
GENERATOR SYSTEM
L
R
W
AC300V
R
W
AC300V
OUT OF
SPECIFICATION
OFF
5-45
Proceed to Step 8.
Turn or push the switch on.
ELEC