MASSEY FERGUSON MF 135 - Ignition System Servicing

Fig. 56 - Fuel Sediment Bowl
Gasoline Fuel System
Cleaning Fuel Sediment Bowl
(See Fig. 56)
£The bowl should be checked daily for wa-
ter and sediment.
If water or sediment has accumulated in
the bowl, close the fuel shut-off valve, re-
move the bowl and empty the water sediment.
Clean the inside of the bowl. Reinstall.
Carburetor (See Fig. 57)
Idling Air Adjustment
Turn out the idling adjustment screw ap-
proximately 1-3/4 to 2-1/4 turns from the
closed position, or until the engine idles
smoothly when operating at normal temper-
ature.
Fig. 57 - Carburetor - Gasoline
Idling Speed Adjustment
Turn the screw in to increase or out to
dee rease idling speed. The gasoline engine
idle speed is 750 ± 25.
Drain Carburetor Bowl (Gasoline Models)
(See Fig. 58)
[~J The carburetor bowl should be drained
after every 500 hours of operation to allow
any water or sediment to escape.
Close the fuel shut-off valve at the fuel
tank. Remove the drain plug from the bot-
tom of the carburetor bowl, allowing fuel
and sediment to drain from the carburetor.
After the carburetor has drained, replace
and tighten the drain plug securely; open
the fuel shut-off valve.
Ignition System (Gasoline Engine)
The following items in the ignition sys-
tem should be checked periodically, as fol-
lows:
Fig. 58 - Spark Plugs
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