Checking The Spark Plugs - Yamaha XVZ13TF 1999 Service Manual

ADJUSTING THE THROTTLE CABLE FREE PLAY/

CHECKING THE SPARK PLUGS

c. Tighten the locknut.
After adjusting the throttle cable free play,
turn the handlebar to the right and to the left
to ensure that this does not cause the en-
gine idling speed to change.
Pay attention to the mark on throttle cable
(1) and throttle rotor (2), when installing.
Refer to "HANDLEBAR" in chapter 7.
4. Check:
Stroke the cruise control wire, when throttle grip
movement.
5. Install:
EAS00059
CHECKING THE SPARK PLUGS
The following procedure applies to all of the
spark plugs.
1. Disconnect:
2. Remove:
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:
4. Check:
3-17
! Throttle cable free play is
Direction
a
increased.
! Throttle cable free play is
Direction b
decreased.
WARNING
WARNING
S throttle grip movement
S fuel tank
S rider seat
Refer to "FUEL TANK" and "RIDER AND
PASSENGER SEATS".
S spark plug cap
S spark plug
CAUTION:
S spark plug type
Incorrect ! Change.
Spark plug type (manufacturer)
DPR8EA-9 (NGK)
X24EPR-U9 (DENSO)
S electrode 1
Damage/wear ! Replace the spark plug.
S insulator 2
Abnormal color ! Replace the spark plug.
Normal color is a medium-to-light tan color.
CHK
ADJ