Instruction Manual

33 Main Parts
22
27
23
25
26
24
17
20
21
10
5
1
1
14
16
4
11
9
2, 3
5902BA054 KN
7
12
13
8
18
19
1
6
#
8
15
1 Shroud lock
2
Handle heating switch
1)
3
Decompression valve
1)
4
Manual fuel pump
1)
5 Shutter (summer and winter operation)
6 Chain brake
7 Chain sprocket
8 Chain sprocket cover
9 Chain catcher
10
Side chain tensioner
1)
11 Spiked bumper
12 Guide bar
13 Oilomatic chain
14
Adjusting wheel
1)
(quick chain adjuster)
15
Handle of wingnut
1)
(quick chain adjuster)
16 Oil filler cap
17 Muffler
18 Front hand guard
19 Front handle (handlebar)
20 Spark plug boot
21 Starter grip
22 Fuel filler cap
23 Master Control lever
24 Throttle trigger
25 Throttle trigger lockout
26 Rear handle
27 Rear hand guard
# Serial number
34 Specifications
34.1 Engine
STIHL single-cylinder two-stroke engine
Displacement:
50.2cm
3
Cylinder bore: 44.7 mm
Piston stroke: 32 mm
Engine power to ISO 7293: 3.0 kW (4.1 hp) at
10000 1/min
Idle speed:
1)
2800 rpm
34.2 Ignition system
Electronic magneto ignition
Spark plug (suppressed): Bosch WSR 6 F,
NGK BPMR 7 A
Electrode gap: 0.5 mm
34.3 Fuel system
All-position diaphragm carburetor with integral
fuel pump
Fuel tank capacity:
500 cm
3
(0.5 l)
34.4 Chain lubrication
Fully automatic, speed-controlled oil pump with
rotary piston. Additional manual oil flow control
Oil tank capacity:
270 cm
3
(0.27 l)
34.5 Weight
dry, without cutting attachment
MS 261 C-M: 4.9 kg
MS 261 C-M with quick chain adjuster: 5.1 kg
MS 261 C-M with handle and carbu‐
retor heating:
5.0 kg
34.6 Cutting attachment
The actual cutting length may be less than the
specified cutting length.
34.6.1 Rollomatic Light 04 guide bars
Bar lengths (pitch .325"): 35, 40, 45, 50 cm
1)
Depending on model
1)
according to ISO 11681 +/- 50 1/min
English 33 Main Parts
40 0458-153-0121-C