Echo SHR-150SI - Manual (Page 3)

SERVICE INFORMATION SHR-150SI
3
1-2 Technical data
Engine
Idling speed r/min 2700 - 3300
Operating speed r/min 6500 - 7000
Engine speed at beginning of clutch engagement r/min 3400 - 3700
Compression pressure Mpa (kgf/cm 2 ) (psi) 0.8 (8.0) 110
Ignition system
Spark plug gap mm (in) 0.6 - 0.7 (0.024 - 0.028)
Minimum secondary voltage at 1500 r/ min kV 20.0
Secondary coil resistance k
Ω
1.4 - 1.9
Pole shoe air gaps mm(in) 0.3 - 0.4
Ignition timing
°
BTDC
at 1000 rpm 17.0
at 7000 rpm 15.0
Carburetor
Venturi size mm(in) 9.0 (0.354)
Throttle bore mm(in) 9.0 (0.354)
Main jet #38
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.