Synchronizing The Throttle Bodies - Yamaha XVS13AWC Service Manual

Thickness gauge
90890-03180
Feeler gauge set
YU-26900-9
c. Turn the adjusting screw "3" in direction "a" or
"b" with the tappet adjusting tool "4" until the
specified valve clearance is obtained.
Tappet adjusting tool
90890-04154
YM-04154
Direction "a"
Valve clearance is increased.
Direction "b"
Valve clearance is decreased.
4
b
d. Hold the adjusting screw to prevent it from
moving and tighten the locknut to specifica-
tion.
Locknut (rocker arm adjusting
screw)
14 Nm (1.4 m·kg, 10 ft·lb)
e. Measure the valve clearance again.
f. If the valve clearance is still out of specifica-
tion, repeat all of the valve clearance adjust-
ment steps until the specified clearance is
obtained.
L LLL L LLL L L LLL L L LLL L
13.Install:
• Rear cylinder tappet covers
• Front cylinder tappet covers
Rear cylinder tappet cover bolt
10 Nm (1.0 m·kg, 7.2 ft·lb)
Front cylinder tappet cover bolt
10 Nm (1.0 m·kg, 7.2 ft·lb)
14.Install:
• Plastic locking ties
2
3
a
L LLL L L LLL L LLL
15.Install:
• Crankshaft end screw
(along with the O-ring
• Timing mark accessing screw
(along with the O-ring
• Damper
• Damper cover
Crankshaft end screw
10 Nm (1.0 m·kg, 7.2 ft·lb)
Timing mark accessing screw
6 Nm (0.6 m·kg, 4.3 ft·lb)
Damper cover bolt
10 Nm (1.0 m·kg, 7.2 ft·lb)
16.Install:
• All removed parts
NOTE:
For installation, reverse the removal procedure.
EAS20570

SYNCHRONIZING THE THROTTLE BODIES

NOTE:
Prior to synchronizing the throttle bodies, the
valve clearance and the engine idling speed
should be properly adjusted and the ignition tim-
ing should be checked.
1. Stand the vehicle on a level surface.
NOTE:
Place the vehicle on a suitable stand.
2. Remove:
• Rider seat
Refer to "GENERAL CHASSIS" on page 4-1.
• Fuel tank
Refer to "FUEL TANK" on page 7-1.
3. Disconnect:
• Front cylinder intake air pressure sensor
hose "1"
• Rear cylinder intake air pressure sensor hose
"2"
2
1
3-6
ENGINE
New
)
New )