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TECHNICAL DATA EM4250, EM4251
EM4251/EM4251CA EM4250/EM4250CA
Model
Loop handle U handle
Dimensions : length x width x height (without cutting blade) mm
1760x330x265 1760x600x405
Mass (without plastic guard and cutting blade) kg
5.2 5.4
Volume (fuel tank) L
0.5
Volume (oil tank) L
0.08
Engine displacement cc
24.5
Maximum engine performance HP
0.885 at 7000 /min
Engine speed at recommended max. spindle speed /min
8500
Maximum spindle speed (corresponding) /min
6500
Maximum fuel consumption kg/h
0.33
Maximum specific fuel consumption g/HPh
304
Idling speed /min
3000
Clutch engagement speed /min
3750
Carburetor type
WALBRO WYL
Ignition system type
Solid state ignition
Spark plug type
NGK CMR6A
Electrode gap mm
0.7 - 0.8
Idling m/s
2
2.59 4.72
Right handle
(Rear grip)
Racing or W.O.T m/s
2
6.27 4.7
Idling m/s
2
3.26 3.83
Vibration per
ISO 7916
1)
Left handle
(Front grip)
Racing or W.O.T m/s
2
7.24 7.56
Sound pressure level average to ISO 7917
1)
dB
87.7 87.7
Sound power level average to ISO 10884
1)
dB
97.7 97.7
Fuel
Automobile gasoline
Engine Oil
SAE 10W-30 oil of API Ciassification,
Class SF or higher (4-stroke engine for automobile)
Gear ratio
14/19