112 MS 661, MS 661 C-M
: Pull the manifold (1) off the intake
stub (arrow).
– Inspect the intake manifold and
replace it if necessary – even
very minor damage can cause
engine running problems, b 3.7
The sealing faces must be in perfect
condition. Always replace
components with damaged sealing
faces.
Installing
– Install manifold on cylinder,
b 6.5
– Coat the outside of the manifold
flange with STIHL press fluid,
b 16
: To pull the manifold flange (1)
through the intake opening, wind
a piece of string (2) (about 15 cm
long) around the flange and pass
the ends of the string through the
intake opening.
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1166RA351 TG
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Take care to ensure that the washer
in the manifold is not damaged or
displaced.
– Press the tank housing against
the manifold and hold it there.
: Grip the ends of the string (2) and
pull the manifold flange (1)
through the opening.
– Remove the string.
: Position the manifold flange (1) –
its recesses (arrows) must locate
against the studs (2).
: Fit the washer (3) and push the
sleeve (4) into the manifold
flange (1).
– Install the carburetor, b 13.4
– Reassemble all other parts in the
reverse sequence.
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13.9.1 Impulse Hose
A damaged impulse hose can
cause engine running problems.
– Remove the carburetor, b 13.4
– Remove the tank housing,
b 13.11.4
: Pull the impulse hose (1) out of
the tank housing in the direction
of the cylinder.
– Check the impulse hose and
replace if necessary.
– Coat tapered outside of new
impulse hose with STIHL press
fluid, b 16
: Push tapered end of impulse
hose (1) through the hole (arrow)
and push it home until it is
properly seated.
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General
Weight and Dimensions
