Spark Plug - Honda CBR300R Manual

Spark Plug

Checking Spark Plug
For the recommended spark plug, see
"Specifications." P. 125
2
Use only the recommended type of spark
plug in the recommended heat range.
NOTICE
Using a spark plug with an improper heat range can
cause engine damage.
This motorcycle uses spark plug that have an
iridium coated center electrode.
Be sure to observe the following when
servicing the spark plug.
● Do not clean the spark plug. If an electrode
is contaminated with accumulated objects
or dirt, replace the spark plug with a new
one.
●
To check the spark plug gap, use only a
"wire-type feeler gauge." To prevent
damaging the iridium coating of the center
electrode, never use a "leaf-type feeler
gauge."
●
Do not adjust the spark plug gap. If the
gap is out of specification, replace the
spark plug with a new one.
continued 57