Stihl MS 271 Manual

41MS 271 C, MS 291 C
: Hold the cylinder steady and
insert screws (1) and screw with
collar (2) in the underside of the
engine housing.
– Tighten down the screws firmly in
a crosswise pattern.
– Reassemble all other parts in the
reverse sequence.
6.6 Crankshaft / Bearings
– Remove the cylinder, b
6.5
– Remove the crankshaft and pull
off the oil seals, b
6.5
Always install new oil seals after
removing the crankshaft, b
6.5
– Remove the piston, b
6.7
: Pull out the needle cage (1),
check it and replace if necessary.
2710RA112 TG
1
1
1
2
2710RA113 TG
1
: Pull the ball bearing (1) off the
tapered crankshaft stub (ignition
side).
: Pull the ball bearing (1) off the
straight crankshaft stub (clutch
side).
The crankshaft, connecting rod and
needle bearing form an inseparable
unit.
When fitting a replacement
crankshaft, always install new ball
bearings and oil seals.
Before installing, clean the
crankshaft, b
14
Heated ball bearings must be
installed quickly because the
crankshaft stubs absorb heat and
expand.
2710RA114 TG
1
2710RA115 TG
1
– Position the ball bearing (1) with
its open side facing the
crankshaft.
– Heat the inner bearing race to
about 150°C (300°F).
: Push the ball bearing onto the
tapered crankshaft stub (clutch
side) as far as stop.
– Position the ball bearing (1) with
its open side facing the
crankshaft.
– Heat the inner bearing race to
about 150°C (300°F).
: Push the ball bearing onto the
straight crankshaft stub (ignition
side) as far as stop.
2710RA117 TG
1
2710RA118 TG
1

Stihl MS 271 Specifications

General

Motor type	2-stroke motor
Chain gauge	1.6 mm
Chain pitch	3/8 \
Blade length	400 mm
Automatic oiling	Yes
Oil tank capacity	0.24 L
Fuel tank capacity	0.5 L
Engine displacement	55.5 cm³
Engine power	3.8 hp
Power source	Gasoline

Weight and Dimensions

Weight	5600 g