Engine; Fuel System; Ignition System - Stihl MS 270 User Manual

3 Specifications
3.1

Engine

3.2

Fuel System

3.3

Ignition System

3.4 Chain Lubrication
MS 270, MS 280
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:
Carburetor leakage test
at gauge pressure:
Tank vent operates
at gauge pressure:
Fuel:
Air gap between ignition
module and fanwheel:
Spark plug (resistor type):
Electrode gap:
Fully automatic speed-controlled oil pump with rotary piston
Oil delivery rate:
MS 270
3
49.6 cm
44.0 mm
32.6 mm
2.6 kW (3.54 HP)
at 9,500 rpm
13,500 ± 150 rpm
2,800 rpm
Three-shoe centrifugal
clutch without linings
3,300 rpm
60 kPa (0.6 bar)
40 kPa (0.4 bar)
80 kPa (0.8 bar)
30 kPa (0.3 bar)
see owner's manual
0.20 – 0.30 mm
NGK BPMR 7A
0.5 mm
10 cc/min at 10,000 rpm 10 cc/min at 10,000 rpm
MS 280
3
54.2 cm
46.0 mm
32.6 mm
2.8 kW (3.81 HP)
at 9,500 rpm
13,500 ± 150 rpm
2,800 rpm
Three-shoe centrifugal
clutch without linings
3,300 rpm
60 kPa (0.6 bar)
40 kPa (0.4 bar)
80 kPa (0.8 bar)
30 kPa (0.3 bar)
see owner's manual
0.20 – 0.30 mm
NGK BPMR 7A
0.5 mm
5