Stihl MS 171 Manual page 6

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