Tohatsu 4 Stroke MFS 2/2.5/3.5A Outboards Service Manual, Page 151Get this manual
Electrical System 3) Inspection of Igniter
1Remove igniter, and turn plug cap counterclockwise to remove it from high tension cord2Measure igniter resistanceReplace if other than specified valueRemove the part and test it as separate unitBO D
Igniter Resistance (at 20C)Secondary Coil:Between High Tension Cord and Black (B) 2.03.0 Secondary Coil:Between Plug Cap and Black (B) 5.59.5 Igniter Diode Polarity (at 20C): Primary Circuit:Between Black (B) and Brown (Br) No conduction Primary Circuit:Between Brown (Br) and Black (B) Conductive Use of analog tester is suitable for checking the polarityThe instrument HIOKI3030 indicates resistance ranging from to 9k digital tester may indicate reversed polarity and resistance ranging from to 6M