Yamaha XJR1300(L) 99, Service Manual

Page: 186 / 338

4-74
ENG
CRANKSHAFT
NOTE:
NOTE:
CAUTION:
EAS00387
REMOVING THE CRANKSHAFT ASSEMBLY
1. Remove:
crankshaft assembly 1
crankshaft journal upper bearings
(from the upper crankcase)
Identify the position of each crankshaft journal
upper bearing so that it can be reinstalled in its
original place.
EAS00391
REMOVING THE CONNECTING RODS
1. Remove:
connecting rods 1
big end bearings
Identify the position of each big end bearing so
that it can be reinstalled in its original place.
EAS00395
CHECKING THE CRANKSHAFT AND CON-
NECTING RODS
1. Measure:
crankshaft runout
Out of specification
Replace the crank-
shaft.
Crankshaft runout
Less than 0.02 mm
2. Check:
crankshaft journal surfaces
crankshaft pin surfaces
bearing surfaces
Scratches / wear
Replace the crankshaft.
3. Measure:
crankshaft-journal-to-crankshaft-journal-
bearing clearance
Out of specification
Replace the crank-
shaft journal bearings.
Crankshaft-journal to crankshaft-
journal-bearing clearance
0.030 0.064 mm
Do not interchange the crankshaft journal
bearings. To obtain the correct crankshaft-
journal-to-crankshaft-journal-bearing clear-
ance and prevent engine damage, the crank-
shaft journal bearings must be installed in
their original positions.