Yamaha WaveRunner FX140 Service Manual page 336

POWR
CAMSHAFTS
• Tighten the timing chain tensioner bolts
3 to the specified torque.
NOTE:
The "UP" mark on the timing chain ten-
sioner should face up.
Timing chain tensioner bolt:
10 N • m (1.0 kgf • m, 7.2 ft • lb)
• Remove the screwdriver, make sure the
timing chain tensioner rod releases, and
then tighten the cap bolt to the specified
torque.
Cap bolt:
10 N • m (1.0 kgf • m, 7.2 ft • lb)
4. Turn:
• Drive coupling
(several turns counterclockwise)
5. Check:
Turn the drive coupling counterclock-
wise, and then check if cylinder #1 is at
TDC of the compression stroke with a
dial gauge.
• Camshaft punch mark a
Make sure that the camshaft punch
mark is aligned with the arrow mark b
on the camshaft cap.
Out of alignment → Adjust.
Refer to the installation steps above.
6. Measure:
• Valve clearance
Out of specification → Adjust.
Refer to "POWER UNIT" in Chapter 3.
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