Spark Plugs - Honda VTX1300C VTX 2004 Owner's Manual

Spark Plug Recommendation
DCPR6E (NGK)
standard
XU20EPR-U (DENSO)
spark plug
for
DCPR7E (NGK)
extended
XU22EPR-U (DENSO)
high speed
riding
Use only the recommended type of spark
plugs in the recommended heat range.
Using spark plugs with an improper heat
range can cause engine damage.
or
or

Spark Plugs

Servicing Your Honda
105