TECHNICAL DATA EM4250, EM4251
Dimensions: length x width x height (without cutting blade)
Mass (without plastic guard and cutting blade)
Volume (fuel tank)
Volume (oil tank)
Engine displacement
Maximum engine performance
Engine speed at recommended max. spindle speed
Maximum spindle speed (corresponding)
Maximum fuel consumption
Maximum specific fuel consumption
Idling speed
Clutch engagement speed
Carburetor
Ignition system
Spark plug
Electrode gap
Right handle
(Rear grip)
Vibration per
ISO 22867
Left handle
(Front grip)
Sound pressure level average to
ISO 22868
Sound power level average to
ISO 22868
Fuel
Engine Oil
Gear ratio
Model
a
hv eq
Uncertainty K
a
hv eq
Uncertainty K
L
PA eq
Uncertainty K
L
WA eq
Uncertainty K
EM4251
Loop handle
mm
1,760 x 330 x 265
kg
5.2
L
L
3
cm
kw
min
-1
-1
min
kg/h
g/kwh
-1
min
-1
min
type
type
type
mm
2
m/s
4.9
m/s
2
0.7
2
m/s
6.3
2
m/s
0.5
dBA
94.8
dBA
2.2
dBA
107.6
dBA
2.2
SAE 10W-30 oil of API Ciassification,
Class SF or higher (4-stroke engine for automobile)
7
EM4250
U handle
1,760 x 600 x 405
5.4
0.5
0.08
24.5
-1
0.66 at 7,000 min
8,500
6,500
0.33
408
3,000
3,750
WALBRO WYL
Solid state ignition
NGK CMR6A
0.7 - 0.8
5.5
0.9
4.3
0.4
86.6
2.8
99.4
2.0
Automobile gasoline
14/18