Engine specification Cylinder displacement 56.5 cc
Power output 4.4 hp
Idling speed 2700 rpm
Maximum power speed 9600 rpm
Maximum recommended engine speed 14000 rpm
Cylinder bore 1.81 inch
Cylinder stroke 1.34 inch
Ignition system SEM AM50
Ignition module air gap 0.01 "
Spark plug NGK BPMR7A
Electrode gap 0.02 "
Carburetor model name HDA174
Fuel tank volume 1.44 US pint
Oil tank volume 0.8 US pint
Oil pump type Adjustable flow
Oil pump capacity 5-15 ml/min
Cutting equipment Chain pitch .325" / 3/8"
Recommended bar length, min-max 13"-20"
Chain speed at max power 70.21 fts
Emission, vibration & noise data Equivalent vibration level (ahv , eq) front / rear handle 3.9/4.2 m/s²
Sound pressure level at operators ear 101 dB(A)
Guaranteed sound power level, LWA 114 dB(A)
Overall dimensions Weight (excl. cutting equipment)