Spark Plug - Suzuki VS1400 Owner's Manual

SPARK PLUG

Your motorcycle comes equipped with
DENSO X24EPR-U9 or NGK DPR8EA-
9 spark plugs. To determine if the stan-
dard spark plug is right for your usage,
check the color of the plug's porcelain
center electrode insulator after motorcy-
cle operation. A light brown color indi-
cates 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 qualified
mechanic if your plug insulator is not a
light brown color.
CAUTION
An improper spark plug may have an incor-
rect fit or heat range for your engine. This
may cause severe engine damage which
will not be covered under warranty.
Use one of the spark plugs listed below or
equivalent. Consult
SUZUKI dealer or qualified mechanic if you
are not sure which spark plug is correct for
your type of usage.
7-22
your authorized