Spark Plug - Honda VTR1000F Service Manual

MAINTENANCE
SPARK PLUG
Rear cylinder Remove the seat (page 2-2).
Remove the fuel tank rear mounting nut and bolt.
Rear cylinder
Raise the rear of the fuel tank and support it with
the maintenance bar.
Both cylinders
Disconnect the spark plug caps and clean around
the spark plug bases.
3-6
NOTE:
Clean around the spark plug bases with compress-
ed air before removing the plugs, and be sure that
no debris is allowed to enter the combustion cham-
ber.
Remove the spark plugs.
Check the insulator for cracks or damage, and the
electrodes for wear, fouling or discoloration. Re-
place the plug if necessary.
If the electrode is contaminated with carbon depos-
its, clean the electrode using the spark plug cleaner.
CAUTION:
• This motorcycle's spark plug is equipped with
platinum type electrodes. Do not use wire brush
to
clean the electrodes.
• The plug cleaner should be used with the air
pressure of less than 6 kgf/crrr (85 psi) and for
less than 20 seconds.
Replace the plug if the center electrode is rounded
as shown.
NOTE:
Always use specified spark plugs on this motorcy-
cle.
SPECIFIED SPARK PLUG: DPR9EVX-9 (NGK)
REAR MOUNTING BOLT
NUT
INSULATOR
ROUNDED ELECTRODE