SERVICE INFORMATION
GT-222ES, SRM-222ES
F226S, T226S, C226S
3
1-2 Technical data
Model
GT-222ES
F226S
SRM-222ES (L)
T226S
SRM-222ES (U)
C226S
Engine
Idling speed r/min 3,000 +/- 400
Wide open throttle speed r/min 6,700 - 7,700* 9,000 - 10,000* 10,500 - 11,500**
Clutch engagement speed r/min 3,750
Engagement Minimum
†
r/min 3,500
Compression pressure MPa (kgf/cm
2
) (psi) 0.9 (9.1) (130)
Ignition system with stop holding function
Spark plug gap mm(in) 0.6 - 0.7 (0.024 - 0.028)
Minimum secondary voltage at 1500 r/min kV 18
Primary coil resistance Ω 320 - 420
Secondary coil resistance kΩ 2.7 - 3.3
Pole shoe air gaps mm(in) 0.3 - 0.4 (0.012 - 0.016)
Ignition timing at 3,000 r/min °BTDC 18
at 8,000 r/min °BTDC 34
at 11,000 r/min °BTDC 14
Carburettor
Venturi Size 9.0 (0.354)
Throttle Bore 10.5 (0.413)
Idle adjust screw initial setting turns out 8 7/8
L mixture needle initial setting turns out 3 7/8
H mixture needle initial setting turns out 1 1/8
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).
†
If clutch engagement speed is lower than service limit speed, replace clutch assembly with new one.
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