Yamaha EF4000DE - Premium Generator Owner's Manual page 47

E
Faulty battery and/or starter motor.
Consult a Yamaha dealer.
I Check engine oil level.
J OK K
Consult a
Yamaha dealer.
O Check the spark plug.
9 Type : BPR4ES
9 Gap : 0.7–0.8 mm (0.028–0.031 in)
P Incorrect Q
Replace or
adjust gap.
Level low
Add engine oil.
OK
Clean the spark
plug.
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