Echo HCAS-2200 - Manual (Page 3)

SERVICE INFORMATION
3
HCAS-2200
1-2 Technical data
Engine
Idling speed r/min 2700 - 3200
Wide open throttle speed r/min 9500 - 11500
Clutch engagement speed r/min 3700 - 4300
Compression pressure MPa (kgf/cm 2 ) (psi) 0.72 (7.3) (104)
Ignition system
Spark plug gap mm (in) 0.6 - 0.7 (0.024 - 0.028)
Primary coil resistance
Ω
300 - 400
Minimum secondary voltage at 1500 r/min kV 15.0
Secondary coil resistance k
Ω
2.4 - 3.2
Pole shoe air gaps mm (in) 0.30 - 0.40 (0.012 - 0.016)
Ignition timing at 1000 r/min
°
BTDC 19.0
at 8500 r/min
°
BTDC 42.0
at 11500 r/min
°
BTDC 14.0
Carburettor
Venturi Size mm(in) 9.0 (0.354)
Throttle Bore mm(in) 10.5 (0.413)
Idle adjust screw initial setting turn in* 2 1/2
L mixture needle initial setting turn back 2
H mixture needle initial setting turn back 2
Test Pressure, minimum MPa (kgf/cm 2 ) (psi) 0.05 (0.5) (7.0)
Metering lever height mm (in) 0.1 - 0.25 (0.004-0.01) lower than diaphragm seat
BTDC: Before top dead center.
* Set idle adjust screw to contact throttle plate before initial setting.