Checking The Spark Plugs; Checking The Ignition Timing - Yamaha Star XVS13AA(C) 2011 Service Manual

d. Tighten the locknut.
e. Slide the throttle cable holder to its original
position.
1
L LLL L LLL L L LLL L L LLL L
4. Install: (for XVS13AA(C)/XVS13CTA(C))
• Fuel tank
Refer to "FUEL TANK" on page 7-1.
• Rider seat
Refer to "GENERAL CHASSIS" on page 4-1.
EAS20680

CHECKING THE SPARK PLUGS

The following procedure applies to all of the
spark plugs.
1. Remove:
• Front cylinder left cover
• Rear cylinder right cover
Refer to "ENGINE REMOVAL" on page 5-1.
2. Disconnect:
• Spark plug cap
3. Remove:
• Spark plug
ECA13320
NOTICE
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.
4. Check:
• Spark plug type
Incorrect → Change.
Manufacturer/model
NGK/LMAR7A-9
5. Check:
• Electrode
Damage/wear → Replace the spark plug.
• Insulator
Abnormal color → Replace the spark plug.
Normal color is medium-to-light tan.
6. Clean:
• Spark plug
(with a spark plug cleaner or wire brush)
2 3
a
b
L LLL L L LLL L LLL
3-9
7. Measure:
• Spark plug gap "a"
(with a wire thickness gauge)
Out of specification → Regap.
Spark plug gap
0.8–0.9 mm (0.031–0.035 in)
8. Install:
• Spark plug
Spark plug
13 Nm (1.3 m·kg, 9.4 ft·lb)
TIP
Before installing the spark plug, clean the spark
plug and gasket surface.
9. Connect:
• Spark plug cap
10.Install:
• Rear cylinder right cover
• Front cylinder left cover
Refer to "ENGINE REMOVAL" on page 5-1.
EAS20700

CHECKING THE IGNITION TIMING

TIP
Prior to checking the ignition timing, check the
wiring connections of the entire ignition system.
Make sure all connections are tight and free of
corrosion.
1. Remove:
• Front cylinder covers
Refer to "ENGINE REMOVAL" on page 5-1.
2. Remove:
• Damper cover "1"
• Timing mark accessing screw "2"
(along with the O-ring)
ENGINE