Yamaha Waverunner VXS VX1800 Service Manual page 71

3
1
2
Gauge stand "1"
90890-06725
Dial gauge needle "2"
90890-06584
Dial gauge stand set "2"
YB-06585
Dial gauge set "3"
90890-01252
Dial indicator gauge "3"
YU-03097
3. Position piston #1 at TDC by turning the
exhaust camshaft sprocket clockwise.
TIP:
Check that the punch marks "a" on the cam-
shafts are aligned with the marks "b" on the
camshaft caps.
1
#1
Camshaft wrench "1"
90890-06724
Camshaft wrench "1"
YW-06724
4. Measure the intake and exhaust valve
clearances of the specified cylinders.
IN
Valve clearance-intake (cold)
0.14–0.23 mm (0.0055–0.0091 in)
Valve clearance-exhaust (cold)
0.28–0.37 mm (0.0110–0.0146 in)
#1

IN

EX
: Specified cylinder
—: Not applicable
5. Install the special service tools into spark
plug hole #4.
6. Position piston #4 at TDC by turning the
exhaust camshaft sprocket 180° clock-
wise.
3-12
Periodic service
b
a
#2 #3 #4
#2 #3

—

—
EX
#4
—
—