ENGINE
3-5
c. Turn the adjusting screw “3” in direction “a” or
“b” with the tappet adjusting tool “4” until the
specified valve clearance is obtained.
d. Hold the adjusting screw to prevent it from
moving and tighten the locknut to specifica-
tion.
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.
▲▲▲▲▲▲▲▲▲ ▲ ▲▲▲▲▲▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲▲▲
13.Install:
• Rear cylinder tappet covers
• Front cylinder tappet covers
14.Install:
• Plastic locking ties
15.Install:
• Crankshaft end screw
(along with the O-ring )
• Timing mark accessing screw
(along with the O-ring )
• Damper
• Damper cover
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”
Thickness gauge
90890-03180
Feeler gauge set
YU-26900-9
Tappet adjusting tool
90890-04154
YM-04154
Direction “a”
Valve clearance is increased.
Direction “b”
Valve clearance is decreased.
T
R
.
.
Locknut (rocker arm adjusting
screw)
14 Nm (1.4 m·kg, 10 ft·lb)
T
R
.
.
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)
a
3
4
b
2
T
R
.
.
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)
New
New
2
1
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