Engine; Muffler - Stihl MS 271 Manual

6.

Engine

6.1

Muffler

Always check and, if necessary,
repair the fuel system, carburetor,
air filter and ignition system before
looking for faults on the engine.
– Troubleshooting, b 3
– Remove the shroud, b 6.4
Before removing the muffler, set the
piston to top dead center to ensure
that no dirt falls into the cylinder.
1 1
: Pry out the plugs (1)
– do not re-use plugs that have
been removed.
1 1
2
: Take out the screws (1).
: Remove the muffler (2), check
and replace if necessary.
– Remove the exhaust gasket.
MS 271 C, MS 291 C
– Remove and install the spark
arresting screen – see instruction
manual.
Installing
– Position the machine upright.
– Cover the exhaust port. Remove
any dirt from around the cylinder
and exhaust port.
: Check and clean the sealing
faces (arrows), remove any
gasket residue – make sure there
is no gasket residue or dirt in the
exhaust port.
Always replace components with
damaged sealing faces.
1
– Position the exhaust gasket (1)
so that the tabs (arrows) point
towards the cylinder.
: Fit the exhaust gasket (1) and
use the tabs (arrows) to line it up
on the cylinder.
1
2
2
: Carefully place the muffler (1) in
position.
: Check the position of the gasket
and fit the screws (2).
– Insert and tighten down the
screws (2) firmly.
– Use a blunt tool to push home the
new plugs
– take care not to damage the
plugs.
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