Operation Manual

34 MS 241 C
6. Engine
6.1 Muffler
Check and if necessary repair the
fuel supply, carburetor, air filter and
ignition system before looking for
faults on the engine.
– Troubleshooting, b 3.7
– Remove shroud, b 6.4
To keep dirt particles from entering
the cylinder, move piston to top
dead center before removing the
muffler.
: Pry out the stoppers (1) around
the circumference at the
markings
– Do not reuse dismantled
stoppers
: Remove screws (1) and (2)
: Take out and examine the
muffler (3), replace if necessary
– Remove exhaust gasket
– always use a new exhaust
gasket
2410RA070 TG
1 1
2410RA071 TG
1
1
2 2
3
– Remove and install spark
arresting screen, if present, see
Instruction Manual
Installation
– Cover exhaust bore and remove
any fouling on the cylinder and
exhaust bore
: Examine and clean the mating
surfaces (arrows), remove any
gasket residues if necessary –
there must not be any gasket
residues or dirt particles in the
exhaust bore
Parts with damaged mating
surfaces must be replaced.
: Orient the exhaust gasket (1) so
that the tabs (arrows) face
towards the cylinder
: Fit the exhaust gasket (1) and
orient it with the tabs (arrows) on
the connector of the cylinder
2410RA072 TG2410RA073 TG
1
: Carefully fit the muffler (1)
: Fit screws (2) and check that
gasket is correctly positioned
: Insert screws (3) – do not tighten
: First tighten screws (2), then
tighten screws (3)
– Press in new stoppers evenly and
straight around the
circumference with a blunt tool –
do not insert them on a slant or
damage them
2410RA071 TG
2
2
3 3
1