Tohatsu 4 Stroke MFS 2/2.5/3.5A Outboards Service Manual, Page 29Get this manual
Service Data Description Setting Mark Venturi Diameter Throttle Bore Diameter Carburetor Main Jet (MJ) Main Nozzle Inner Diam(MN) Slow Jet (SJ) Throttle Opening (at WOT) Oil Level (from flange surface to float marking) Range of Ignition Timing Spark Performance Air Gap Igniter Diode Polarity
Red tester lead to brown (Br) lead Black tester lead to black (B) lead
Item F2A 3BV 7.5 16 58 1.4 38 76 10.0mm
Standard Values F2.5A 3AB 16 62 1.4 38 76 10.0mm F3.5A 3BR 13 19 68 1.8 38 76 10.0mm
FuelLubrication Parts Electrical Parts Cooling System Lower Unit Other
BTDC7BTDC25 (Electronic Control) at 500rmin 5mm (0.2in) or over 0.20.4mm (0.0080.016in) ReferenceMeasurement value with HIOKI Analog 3030 (100 range) Conductive (5 to 9k)Measurement value with HIOKI Analog 3030 (100 range) Non-conductive (ResistanceInfinite) 2.03.0k 5.59.5k 3.07.0k DCPR6E [NGK] 0.80.9mm (0.0310.035in) 522 (125F4F)
MagnetoIgniter
Red tester lead to black (B) lead Black tester lead to brown (Br) lead
Reference
Igniter Secondary Coil Resistance