Yamaha VMX12H Supplementary Service Manual page 163

INSPECTION A N D REPAIR
J 2
P l
3-39
J3 J4
P2
i
J3
7. Remove:
rod cap
Use care in removing.
8. Measure:
Width of Plastigage®
Out of specification
and/or replace crankshaft if necessary.
Connecting Rod Bearing Clearance:
0.021 -0.045
(0.0008 0.0018 in)
Crankshaft Main and Connecting Rod Bearing
Selection
used to indicate crankshaft journal
sizes are stamped on the crankweb. The first
two are main bearingjournal numbers,
starting with the l e f t journal. The four (4)
rod bearing journal numbers follow in
the same sequence.
lower crankcase half i s numbered
J3, and J4 on the front left boss as shown.
connecting rods are numbered 3 or 4. The
numbers are stamped in ink on the rod.
Replace bearings
mm
J2,