Yamaha 2004 FZ6-SS Service Manual - Chk
3-22
A
B
CHECKING THE SPARK PLUGS
CHK
ADJ
CAUTION:
EAS00059
CHECKING THE SPARK PLUGS
The following procedure applies to all of the
spark plugs.
1. Remove:
Sradiator lower bolt
1
Sradiator lower hose bracket bolt
2
2. Remove:
Sspark plug caps
Sspark plugs
A
Right side #1 and #2 and #3
B
Left side #4
Before removing the spark plugs, blow away
any dirt accumulated in the spark plug wells
with compressed air to prevent it from fal-
ling into the cylinders.
3. Check:
Sspark plug type
Incorrect
! Change.
Spark plug type (manufacturer)
CR9EK (NGK)
4. Check:
Selectrode
1
Damage / wear
! Replace the spark plug.
Sinsulator
2
Abnormal color
! Replace the spark plug.
Normal color is medium-to-light tan.
5. Clean:
Sspark plug
(with a spark plug cleaner or wire brush)
6. Measure:
Sspark plug gap
a
(with a wire Thickness gauge)
Out of specification
! Regap.
Spark plug gap
0.6
X 0.7 mm
(0.0236
X 0.0276 in)