SERVICE INFORMATION
SRM-265ES
3
1-2 Technical data
Model SRM-265ES (L) SRM-265ES (U)
Engine
Idling speed r/min 2600 - 3200
Wide open throttle speed r/min 9400 - 10400* 10200 - 11200**
Clutch engagement speed r/min 3600 - 4200
Compression pressure MPa (kgf/cm
2
) (psi) 0.99 (10.1) (143)
Ignition system
Spark plug gap mm(in) 0.6 - 0.7 (0.024 - 0.028)
Minimum secondary voltage at 1500 r/min kV 15
Primary coil resistance Ω 320 - 420
Secondary coil resistance kΩ 2.7 - 3.3
Pole shoe air gaps mm(in) 0.30 - 0.40 (0.012 - 0.016)
Ignition timing at 2000 r/min °BTDC 7
at 3000 r/min °BTDC 5
at 8000 r/min °BTDC 28
at 11000 r/min °BTDC 22
Carburettor
Venturi Size mm(in) 10.5 (0.413)
Throttle Bore mm(in) 10.5 (0.413)
Idle adjust screw initial setting turn in*** 3 1/4
Idle mixture needle initial setting turn back 1 1/2
Hi speed H mixture needle initial setting
turn back 1 1/2
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 centre.
*With Nylon line cutter and shield.
**With 3-tooth blade (230 mm).
*** Set idle adjust screw to the point that its tip just contacts throttle plate before initial setting.
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