43FC 75, FC 85, FH 75, FS 75, FS 80, FS 85, HL 75, KM 85, KW 85
– Wash the foam filter element in a
standard commercial solvent-
based degreasant containing no
chlorinated or halogenated
hydrocarbons and dry, b 12.
– Replace the felt filter. As a
temporary measure, knock the
filter out on the palm of your hand
or blow clear with compressed
air. Do not wash.
– Replace any damaged parts.
Install in the reverse sequence.
– Fit the foam element in the filter
cover.
: Fit the felt element in the filter
housing ("INSIDE" must face
engine).
VA
936RA158
Innen
INSIDE
FACE INTERNE
: Make sure that the slot in the filter
cover engages the lug on the
filter housing (arrow).
VA
936RA159
If you suspect a fault in the fuel
system, b 4.3
In the case of problems with the
carburetor or fuel supply system,
also check and clean or replace the
tank vent, b 9.5.
The carburetor can be tested for
leaks with the carburetor and
crankcase tester 1106 850 2905.
– Remove the shroud, b 5.1
– Disconnect the fuel hose from the
carburetor’s elbow connector
(arrow).
VA
936RA160
: Push the fuel hose (1)
1110 141 8600 onto the
nipple (2) 0000 855 9200.
VA
143RA172
2 1
: Push the fuel hose with nipple
onto the carburetor’s elbow
connector (arrow).
VA
936RA161
: Connect the tester's pressure
hose to the nipple (arrow).
VA
936RA162
: Close the vent screw (1) on the
rubber bulb (2) and pump air into
the carburetor until the pressure
gauge (3) shows a reading of
approx. 0.8 bar.
VA
936RA163
1
2
3
9.2 Carburetor
9.2.1 Leakage Test
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