TOHATSU BFT 75A Owner's Manual page 86

SERVICING YOUR OUTBOARD MOTOR
BOX WRENCH
SPARK PLUG WRENCH
5. Remove the spark plug using the
spark plug wrench, box wrench and

the Phillips screwdriver
(accessories).
84
New plug Plug needing
replacement
6. Inspect the spark plugs. Replace
them if the electrodes are worn, or
if the insulators are cracked or
chipped.
SIDE ELECTRODE
0.031 – 0.035 in
(0.8 – 0.9 mm)
SEALING WASHER
INSULATOR
7. Measure the spark plug electrode
gap with a wire-type feeler gauge.
Correct the gap, if necessary, by
carefully bending the side
electrode.
The gap should be:
0.031 – 0.035 in (0.8 – 0.9 mm)