Spark Plug - Suzuki VL800 Owner's Manual

SPARK PLUG

Your motorcycle comes equipped
with DENSO
X22ESR-U (California) or NGK
DPR7EA-9, DR7EA (California)
spark plugs. To determine if the
standard spark plug is right for
your usage, check the color of the
plug's porcelain center electrode
insulator after motorcycle opera-
tion. A light brown color indicates
that the plug is correct. A white or
dark insulator indicates that the
engine may need adjustment, or
another plug type may be needed.
Consult your authorized Suzuki
dealer or a qualified mechanic if
your plug insulator is not a light
brown color.
CAUTION
An improper spark plug may
have an incorrect fit or heat
range for your engine. This
may cause severe engine dam-
age which will not be covered
under warranty.
Use one of the spark plugs
listed below or equivalent.
Consult your
SUZUKI dealer or a qualified
mechanic if you are not sure
which spark plug is correct for
your type of usage.
X22EPR-U9,
authorized
7-11
NGK DENSO
DPR7EA-9 X22EPR-U9
DPR8EA-9 X24EPR-U9
California model
NGK DENSO
DR7EA X22ESR-U
DR8EA X24ESR-U
NOTE: If the above-named plugs
are not available, consult your
authorized Suzuki dealer.
NOTE: This
resistor-type spark plug to avoid
jamming electronic
Improper spark plug selection
may cause electronic interfer-
ence with your motorcycle's igni-
tion system,
motorcycle performance
lems. Use only the recommended
spark plugs.
REMARKS
Standard
If the
standard plug
is apt to
overheat,
replace with
this plug.
REMARKS
Standard
If the
standard plug
is apt to
overheat,
replace with
this plug.
motorcycle uses
parts.
resulting
prob-
in