Fuel Intake; Pickup Body; Fuel Hose - Stihl MS 231 Manual

1
: Insert and tighten down the
screw (1) firmly.
– Reassemble all other parts in the
reverse sequence.
12.11

Fuel Intake

12.11.1 Pickup Body

Any impurities mixed with the fuel
are retained by the pickup body
(filter). The fine pores of the filter
eventually become clogged with
minute particles of dirt. This restricts
the passage of fuel and results in
fuel starvation.
In the event of problems with the
fuel supply system, always check
the fuel tank and the pickup body
first.
– Troubleshooting, b 3.6 or
b 3.7
Clean the fuel tank if necessary.
– Open the tank cap and drain the
tank.
– Pour a small amount of clean
gasoline into the tank. Close the
tank and shake the saw
vigorously.
MS 231, MS 231 C, MS 251, MS 251 C
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– Open the tank again and drain it.
– Dispose of fuel properly in
accordance with environmental
requirements, b 1
– Open the tank cap.
: Use hook 5910 893 8800 to
remove the pickup body (1) from
the fuel tank.
Do not overstretch the fuel hose.
– Pull off the pickup body (1),
check it and replace if necessary.
– Reassemble in the reverse
sequence.

12.11.2 Fuel Hose

– Open the tank cap.
– Remove the pickup body, b 11.1
– Remove the carburetor carrier,
b 12.8
– Remove the air guide shroud,
b 12.4
Models with manual fuel pump,
b 12.4.1
1
: Take out the screw (1).
1
1
: Take out the screw (1).
1
: Take out the screws (1).
1
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