TOHATSU MFS25 - Inspection of Ignition Coils; Inspection of Alternator

8
8-15
25/30 2006
3) Inspection of Ignition Coils
1. Remove ignition coil coupler.
2. Measure ignition coil resistance. Replace if other than
specified value.
Ignition Coil Resistance :
Primary Coil : Between Black/White (B/W) - Black (B)
0.17 to 0.23 Ω (at 20°C)
Secondary Coil : Between High Tension Cord - Black (B)
3.3 to 4.9 Ω (at 20°C)
Secondary Coil : Between Plug Cap - Black (B)
7.1 to 11.1 Ω (at 20°C)
4) Inspection of Alternator
1. Disconnect alternator coupler (6 pin).
2. Measure alternator resistance. Replace if other than
specified value.
3. Install plug cap onto high tension cord by entwisting
clockwise.
4. Connect plug cap to spark plug.
1
2
Alternator (Exciter Coil) Resistance :
Between White/Red (W/R) - White/Black (W/B) : 11 to 16 Ω
Between White/Blue (W/L) - White/Black (W/B) : 11 to 16 Ω
Alternator (ECU Charge Coil) Resistance :
Between White (W) - White (W) : 1.1 to 1.7 Ω
(Three Types)
1 Alternator (3 Pin) (Charge Coil)
2 Alternator (6 Pin) (Exciter Coil, ECU Charge Coil)
This test can be made without removing parts.
This test can be made without removing parts.
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