Suzuki GSX1300BK Owner's Manual page 128

NGK DENSO
CR8EIA-9 IU24D
CR9EIA-9 IU27D
CR10EIA-9 IU31D
NOTE: This motorcycle uses resistor-type
spark plug to avoid jamming electronic
parts. Improper spark plug selection may
cause electronic interference with your
motorcycle's ignition system, resulting in
motorcycle performance problems. Use only
the recommended spark plugs.
REMARKS
If the standard plug is
apt to get wet, replace
with this plug.
Standard
If the standard plug is
apt to overheat, replace
with this plug.
INSTALLATION
CAUTION
A crossthreaded or overtightened spark
plug will damage the aluminum threads
of the cylinder head.
Follow the procedure below to tighten
the spark plug properly.
Carefully turn the spark plug by hand into
the threads until it is finger tight. If the
spark plug is new, tighten it with a wrench
about 1/2 turn past finger tight. If you are
reusing the old spark plug, tighten it with a
wrench about 1/8 turn past finger tight.
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