Yamaha WaveRunner FX SHO, Service Manual

Page: 184 / 433

5-59
E
POWR
5. Measure:
• Camshaft-journal-to-camshaft-cap
clearance
Out of specification
→
Replace the cyl-
inder head assembly.
Measurement steps:
1. Remove the valve lifters
1
and valve pads
2
.
NOTE:
Make a note of the position of each valve lifter
and valve pad so that they can be installed in
their original positions.
2. Place the camshafts on the cylinder head.
3. Put a piece of Plastigauge
3 on each
camshaft journal.
NOTE:
Do not put the Plastigauge over the oil hole in
the camshaft journal.
4. Install the camshaft caps and bolts.
5. Gradually tighten the camshaft cap bolts to
the specified torque in the sequence
shown.
NOTE:
• Apply engine oil to the threads of the cam-
shaft cap bolts.
• Make sure to keep the camshafts level.
• Do not turn the camshafts when measuring
the camshaft-journal-to-camshaft-cap clear-
ance with the Plastigauge.
6. Remove the camshaft caps, and then
measure the width of the Plastigauge 3 .
Camshaft-journal-to-camshaft-cap
clearance:
0.020 – 0.061 mm (0.0008 – 0.0024 in)
T
R
.
.
Camshaft cap bolt:
16 N · m (1.6 kgf · m, 11.8 ft · lb)
1
2
3
E
7
6
4
4
9
9
5
5
8
7
3
3 6
0
0 8
B
B
A
A
1
1
2
2
IN
EX
3
Camshaft