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SPARK PLUG
Your outboard motor comes equipped with the
following "standard" spark plug for normal
usage.
Standard spark plug
NOTICE
Non-resistor types of spark plugs will
interfere with the function of the elec-
tronic ignition, causing misfiring, or
causing problems with other electronic
boat equipment and accessories.
Use ONLY resistor type spark plugs in
your outboard motor.
Your authorized Suzuki Marine Dealer can
determine if the standard spark plug is suitable
for your type of motor usage by inspecting the
color of the plug's porcelain center electrode
insulator after operation.
If the plug tends to run hot (usually evidenced
by whitening of the insulator or a burnt elec-
trode), stop using your motor immediately as
severe engine damage may result. If the plug
tends to run cold (usually evidenced by black-
ening of the insulator or a wet electrode), per-
formance may suffer. Ask your authorized
Suzuki Marine dealer to evaluate either of these
problems to determine the cause.
Center
electrode
Ground electrode
NGK CPR6EA-9
Insulator
Gap
NOTICE
Use of improper spark plugs or improp-
erly tightening spark plugs can cause
severe engine damage.
• Do not experiment with other spark
plug brands unless you can determine
that they are directly equivalent to the
specified brand, or you may experience
engine damage which will not be cov-
ered under warranty. Note that after-
market cross-reference charts may not
be accurate.
• To install a spark plug; seat it as far as
possible by hand, then use a wrench to
tighten it to either the recommended
torque setting or the specified rotation
angle.
Tightening torque
1.0 – 1.2 kg-m (7.2 – 8.7 lb-ft)
Rotation angle
New plug
Re-use plug
• Do not overtighten or cross-thread a
spark plug, as this will damage the alu-
minum threads of the cylinder head.
1/2 – 3/4 of a turn
1/12 – 1/8 of a turn
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