Spark Plug - Suzuki GSX-R1000 Service Manual

2-6 PERIODIC MAINTENANCE
SPARK PLUG
Inspect at 6 000 km (4 000 miles, 6 months) and repla-
ce every 12 000 km (7500 miles, 12 months) thereafter.
SPARK PLUG AND IGNITION COIL/PLUG CAP REMOVAL
• Remove the front and rear seat. (c:::7'8-6)
• Lift and support the fuel tank. (c:::7'5-5)
• Remove the air cleaner box. (c:::7'5-15)
• Disconnect all lead wire couplers from ignition coil/plug caps.
I
CAUTION
I
Disconnect the lead wire coupler before removing the
ignition coil/plug cap to avoid lead wire coupler dam-
age.
• Remove the ignition coils/plug caps.
I
CAUTION
I
*
Do not pry up the ignition coil/plug cap with a screw
driver or a bar to avoid its damage.
*
Be careful not to drop the ignition coil/plug cap to
prevent short/open circuit.
• Remove the spark plugs with a spark plug wrench.
HEAT RANGE
• Check spark plug heat range by observing electrode color. If
the electrode of the spark plug is wet appearing or dark color,
replace the spark plug with hotter type one. If it is white or
glazed appearing, replace the spark plug with colder type
one.
--------
Hot type Standard Cold type
NGK CR8E CR9E CR10E
ND U24ESR-N U27ESR-N U31 ESR-N
NOTE:
"R" type spark plug has
a
resistor located at the center electrode
to prevent radio noise.
CARBON DEPOSITS
• Check carbon deposits on the spark plug.
• If carbon is deposited, remove it using a spark plug cleaner
machine or carefully use a tool with a pointed end.