5
MS 171, MS 181, MS 211
3.
Specifications
3.1
Engine
MS 171
MS 181, MS 181 C
MS 211, MS 211 C
Displacement:
30.1 cm
3
31.8 cm
3
35.2 cm
3
Bore:
37 mm
38 mm
40 mm
Stroke:
28 mm
28 mm
28 mm
Engine power to ISO 7293:
1.3 kW (1.8 PS)
at 9,500 rpm
1.5 kW (2.0 PS)
at 9,500 rpm
1.7 kW (2.3 PS)
at 9,500 rpm
Max. permissible engine speed
with bar and chain:
13,500 rpm
13,500 rpm
13,500 rpm
Idle speed:
2,800 rpm
2,800 rpm
2,800 rpm
Clutch:
Centrifugal clutch without linings
Clutch engages at:
5,100 rpm
5,100 rpm
5,100 rpm
Crankcase leakage test
at gauge pressure:
0.5 bar
under vacuum:
0.5 bar
3.2
Fuel System
Carburetor leakage test
at gauge pressure:
0.8 bar
Operation of tank vent at gauge pressure: 0.5 bar
Fuel:
as specified in instruction manual
3.3
Ignition System
Air gap between ignition module and
fanwheel:
0.15...0.35 mm
Spark plug (suppressed):
NGK CMR 6H
Electrode gap:
0.5 mm
3.4
Chain Lubrication
Fully automatic, speed-controlled oil pump with reciprocating
piston
Oil delivery rate:
7.0 cm³/min at
10,000 rpm
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