Checking The Spark Plugs - Yamaha XJR1300 2007 Service Manual

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Handlebar side
a. Loosen the locknut "1".
b. Turn the adjusting nut "2" in direction "a" or
"b" until the specified throttle cable free play
is obtained.
Direction "a"
Throttle cable free play is increased.
Direction "b"
Throttle cable free play is decreased.
c. Tighten the locknut "1".
b
a
EWA12920
WARNING
After adjusting the throttle cable free play,
start the engine and turn the handlebar to the
right and to the left to ensure that this does
not cause the engine idling speed to change.
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EAS20680

CHECKING THE SPARK PLUGS

The following procedure applies to all of the
spark plugs.
1. Disconnect:
Spark plug cap
G
2. Remove:
Spark plug
G
ECA13320
CAUTION:
Before removing the spark plugs, blow away
any dirt accumulated in the spark plug wells
with compressed air to prevent it from falling
into the cylinders.
3. Check:
Spark plug type
G
Incorrect → Change.
1
2
Manufacturer/model
NGK/DPR8EA-9
4. Check:
Electrode "1"
G
Damage/wear → Replace the spark plug.
Insulator "2"
G
Abnormal color → Replace the spark plug.
Normal color is medium-to-light tan.
5. Clean:
Spark plug
G
(with a spark plug cleaner or wire brush)
6. Measure:
Spark plug gap "a"
G
Out of specification → Regap.
Spark plug gap
0.8–0.9 mm (0.031–0.035 in)
a
7. Install:
Spark plug
G
Spark plug
18 Nm (1.8 m•kg, 13 ft•lb)
NOTE:
Before installing the spark plug, clean the spark
plug and gasket surface.
3-10
ENGINE
2
1