Suzuki Intruder VL1500B Owner's Manual page 111

NGK DENSO
CPR6EA-9 U20EPR9
CPR7EA-9 U22EPR9
NOTE: This motorcycle uses a 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
Standard
If the standard plug is
apt to overheat, replace
with this plug.
INSTALLATION
Improper installation of the spark plug
can damage your motorcycle. An overly-
tight or cross-threaded spark plug will
damage the aluminum threads of the cyl-
inder head.
Carefully turn the spark plug by hand
into the threads. 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.
6-29
NOTICE