Yamaha WaveRunner VXR VX1800A, Service Manual

Page: 169 / 318

Crankcase, connecting rod, and piston
5-78
Piston pin check
1. Measure the piston pin outside diameter
“a” at measuring points “b”, “c”, and “d”,
and in directions “e” and “f”. Replace if out
of specification.
Connecting rod check
1. Measure the connecting rod small end in-
side diameter “a”. Replace if out of specifi-
cation.
Crankshaft check
1. Measure the crankshaft journal diameter
“a” and crankshaft pin diameter “b”. Re-
place if out of specification.
a. Top ring side clearance
b. 2nd ring side clearance
c. Oil ring side clearance
Top ring
Side clearance
0.020–0.060 mm (0.0008–0.0024 in)
Limit
0.110 mm (0.0043 in)
2nd ring
Side clearance
0.020–0.060 mm (0.0008–0.0024 in)
Limit
0.120 mm (0.0047 in)
Oil ring
Side clearance
0.040–0.160 mm (0.0016–0.0063 in)
a
b
c
Outside diameter
21.991–22.000 mm (0.8658–0.8661 in)
Limit
21.981 mm (0.8654 in)
Small end inside diameter
22.015–22.028 mm (0.8667–0.8672 in)
a
b
c
d
e
f
a