Onan MJA Series Service Manual page 42

40 F U E L S Y S TE M
TROUBLE-.SHOOTING CHART 3, FUEL SYSTEM
TROUBLE
POS8IBLE CAUSE REMEDY
I
No gasoline to
carburetor
Vapor lock in fuel line or
I
Allow engine
pump. , check for possible
over heating.
Defective fuel pump.
I
See Sect 3.Z.3.L
Restricted fuel line.
I
Clean or replace.
Clogged fuel strainer.
I
Clean, Sect 3.2.2 -
adjust service periods
and check source of
contamination.
Flooding Overchoking.
I
Adjustor repair choke.
Incorrect adjustment of
carburetor float level.
I
See Sect 3.2.5.3.
Electric choke
won't open
Incorrect adjustment -
defective heating elementJ See Sect 3.2.4.
Incorrectly installEd
bi-metal spring. See Fig 3.2.F.
Binding choke shaft. Disassemble and
repair.
Excessive Fuel
Consumption
Generator overloaded.
Poor compression.
Reduce load.
See Sect 3. 7.2.
Carburetor out of
adjustment. Adjust carburetor.
Power Lag When Metering well vent Clean carburetor.
Load is Increased restricted. Clean extended air pass­
age through air cleaner
adapter and gasket (late
!
models).
;
-,