Yamaha FZ6-ST Supplementary Service Manual page 322

CONNECTING RODS AND PISTONS
EAS00387
REMOVING THE CRANKSHAFT ASSEMBLY
1. Remove:
NOTE:
Identify the position of each crankshaft journal
upper bearing so that it can be reinstalled in its
original place.
EAS00261
CHECKING THE CYLINDER AND PISTON
1. Check:
2. Measure:
a. Measure cylinder bore "C" with the cylinder
NOTE:
Measure cylinder bore "C" by taking side-to-
side and front-to-back measurements of the cyl-
inder. Then, find the average of the measure-
ments.
5-69
S crankshaft assembly
S crankshaft journal upper bearings
(from the upper crankcase)
Refer to "CRANKSHAFT".
S piston wall
S cylinder wall
Vertical scratches ! Replace the cylinder,
and the piston and piston rings as a set.
S piston-to-cylinder clearance
bore gauge.
ENG