Yamaha XVS6501997 Service Manual page 162

CRANKSHAFT AND CONNECTING RODS
5. Inspect:
S Crank pin surfaces
S Bearing surfaces
Wear/scratches ! Replace.
6. Inspect:
S Timing chain sprockets 1
Damage/wear ! Replace the crankshaft.
7. Measure:
S Oil clearance (crank pin)
Out of specification ! Replace the bear-
ing.
Oil clearance (crank pin):
0.026 X 0.050 mm
*****************************************************
Measurement steps:
CAUTION:
Do not interchange the bearings and con-
necting rods. To obtain the correct oil clear-
ance and to prevent engine damage they
must be installed in their original positions.
D Clean the bearings, crank pins and bearing
portions of the connecting rods.
D Install the upper half of the bearing into the
connecting rod and the lower half of the bear-
ing into the connecting rod cap.
NOTE:
Align the projection a of the bearing with the
notch b of the connecting rod and its cap.
D Put a piece of Plastigauge
pin.
D Assemble the connecting rod halves.
NOTE:
D Do not move the connecting rod or crank-
shaft until the oil clearance measurement
has been completed.
D Apply molybdenum disulfide grease to the
bolts, threads and nut seats.
4-58
ENG
1 on the crank