Stihl MS 261 C User Manual

41MS 261, MS 261 C
– Check the intake manifold (1),
replace if necessary
– even very minor damage can
result in engine running
problems,
b
3.7
: Take out the screws (2).
: Remove the intake manifold (1).
: Inspect and clean the sealing
faces (arrows) and remove any
gasket residue,
b
15
– Clean the sealing face on the
intake manifold,
b
15
The sealing faces must be in perfect
condition. If the sealing faces are
damaged, install a new cylinder.
Always use a new cylinder gasket
when re-installing the cylinder.
5902RA120 TG
2
2
1
2
5902RA121 TG
Installing
: Fit the manifold (1) in position.
: Insert and tighten down the
screws (2) firmly.
: Fit new cylinder gasket (1) over
the piston and on the crankcase.
– Line up the cylinder gasket (1)
with the holes.
: Slide the wooden assembly
block (1) 1108 893 4800
between the piston and
crankcase.
Take care not to damage the
cylinder gasket.
5902RA127 TG
2
2
1
2
5902RA122 TG
1
5902RA123 TG
1
– Lubricate the piston, piston rings
and cylinder wall with oil, b
b
15
: Use the clamping strap (1)
0000 893 2600 to compress the
rings around the piston.
– Check correct installed position
of rings,
b
6.8
Apply the clamping strap (1) so that
the piston rings do not project
beyond the cylinder wall.
: Position the cylinder (1) so that
the manifold (2) points towards
the tank housing.
While sliding the cylinder over the
piston, hold the clamping strap
tightly around the piston so that the
rings do not project
– they might otherwise break.
: Slide the cylinder over the piston,
the clamping strap moves
downwards at the same time.
5902RA124 TG
1
5902RA125 TG
1
2

Stihl MS 261 C Specifications

General

Displacement	50.2 cm³
Powerhead Weight	4.9 kg
Sound pressure level	103 dB(A)
Sound power level	116 dB(A)
Vibration level (left/right)	3.5/3.5 m/s²
Bar Length	40 cm (16 in.)
Fuel Capacity	500 cc
Oil Capacity	270 ml (9.1 oz.)
Chain pitch	3/8"
Engine Power	3.0 kW