Onan MJA Series Service Manual page 20

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TROUBLE-SHOOTING CHART 1, THE ENGINE (ConL)
TROUBLE
POSSIBLE GAUSE
REMEDY
.Low oil pressure
See Trouble-Shooting Chart
6
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Spark plug fouled
Wrong spark plug gap.
Clean spark plugs and
in short periods of
set at O. 025"
time on gasoline
operation
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Speed fluctuations
See Trouble-8hooting Chart
Or incorrect speed 5 and Sect 3.4. '
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