Inspection Of The Ignition Coil; Inspection Of The Exciter Coil And Ecu Charge Coil - TOHATSU MFS 25D Service Manual

3) Inspection of the Ignition Coil

1. Disconnect the ignition coil coupler.
2. Measure the ignition coil resistance. Replace it if the value
is not as specified.
This test can be conducted without removing the
part.
Ignition Coil Resistance:
Primary coil: between White (W) and Black (B)
Secondary coil: between high tension cable and
Black (B)
Secondary coil: between plug cap and Black (B)
3. Install the plug cap on the high tension cable by turning it
clockwise.
4. Connect the plug cap to the spark plug.
4) Inspection of the Exciter Coil and
ECU Charge Coil
1. Disconnect the exciter coil coupler and ECU charge coil (6
pin).
2. Measure the exciter coil resistance. Replace it if the value
is not as specified.
This test can be conducted without removing the
part.
ECU Charge Coil Resistance:
Between White (W) and White (W) terminals
Exciter Coil Resistance:
Black (B) to Red (R) or Blue (L)
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