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MS 290, MS 310, MS 390
English
46
Engine
STIHL single cylinder two-stroke engine
MS 290
MS 310
MS 390
Ignition system
Electronic magneto ignition
Fuel system
All position diaphragm carburetor with
integral fuel pump
Chain lubrication
Fully automatic, speed-controlled oil
pump with reciprocating piston –
additional manual oil flow control
Weight
Cutting attachment
Actual cutting length may be less than
the specified length
Rollomatic guide bars
Saw chains .325"
Saw chains 3/8"
Chain sprockets
Specifications
Displacement:
56.5 cm
3
Cylinder bore:
46 mm
Piston stroke:
34 mm
Engine power
according to
ISO 7293:
3.0 kW (4.1 HP) at
9500 rpm
Idle speed:
1)
2800 rpm
Displacement:
59.0 cm
3
Cylinder bore:
47 mm
Piston stroke:
34 mm
Engine power
according to
ISO 7293:
3.2 kW (4.4 HP) at
9500 rpm
Idle speed:
1)
2800 rpm
Displacement:
64.1 cm
3
Cylinder bore:
49 mm
Piston stroke:
34 mm
Engine power
according to
ISO 7293:
3.4 kW (4.1 HP) at
9500 rpm
Idle speed:
1)
1)
to ISO 11681 +/- 50 rpm
2800 rpm
Spark plug
(suppressed):
Bosch WSR 6 F,
NGK BPMR 7 A
Electrode gap:
0.5 mm
Fuel tank capacity:
560 cm
3
(0.56 l)
Oil tank capacity:
330 cm
3
(0.33 l)
Dry, without cutting attachment
MS 290:
5.9 kg
MS 310:
5.9 kg
MS 390:
5.9 kg
Bar lengths (pitch
.325"):
32, 37, 40, 45,
50 cm
Cutting length 3/8"
pitch):
32, 37, 40, 45, 50,
63 cm
Groove width:
1.6 mm
Rapid Micro 3 (26 RM3) Type 3634
Rapid Micro (26 RM) Type 3629
Rapid Super (26 RS) Type 3639
Pitch:
0.325" (8.25 mm)
Drive link gauge:
1.6 mm
Rapid Micro (36 RM) Type 3652
Rapid Super (36 RS) Type 3621
Rapid Super 3 (36 RS3) Type 3626
Pitch:
3/8" (9.32 mm)
Drive link gauge:
1.6 mm
7-tooth for 3/8" (spur chain sprocket)
Max. chain speed to
ISO 11681:
27.5 m/s
Chain speed at maximum
power output:
21.7 m/s
7-tooth for 3/8" (rim sprocket)
Max. chain speed to
ISO 11681:
27.5 m/s
Chain speed at maximum
power output:
21.7 m/s
7-tooth for .325“ (spur chain sprocket)
Max. chain speed to
ISO 11681:
27.5 m/s