Technical Data - Echo PB-655 Service Data

PB-655
PB-755

1-2 Technical data

Model
Engine
Idling speed
Wide open throttle speed
Compression pressure
Ignition system
Spark plug gap
Minimum secondary voltage at 1000 r/min
Primary coil resistance
Secondary coil resistance
Pole shoe air gaps
Ignition timing
Carburettor
Venturi size
Throttle bore
Idle adjust screw initial setting
Idle mixture needle initial setting
H mixture needle initial setting
Test Pressure, minimum
Metering lever height
BTDC: Before top dead centre.
* Refer to page 7 on 2-2 initial idle adjust screw.
** Screw in idle mixture needle from initial thread engagement (at the point that the clicking sound is heard).
SERVICE INFORMATION
r/min
r/min
2
MPa (kgf/cm ) (psi)
mm(in)
kV
Ω
kΩ
mm(in)
°BTDC
mm(in)
mm(in)
turn back*
turn in**
turn back
2
MPa (kgf/cm ) (psi)
mm (in)
PB-655
2400 - 2800
6800 - 7300
1.05 (10.7) (152)
0.6 - 0.7 (0.024 - 0.028)
12
150 - 250
1.2 - 1.8
0.3 - 0.4 (0.012 - 0.016)
30
15.0 (0.591)
15.0 (0.591)
8
10
3 3/4
0.05 (0.5) (7.0)
1.5 (0.06) lower than diaphragm seat
3
PB-755