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Kawasaki KZ1300-A1 Quick Reference Manual Page 189

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MAINTENANCE--ENGINE
Table H49
Crankshaft Bearing Insert/
Journal Clearance
Service Limit
0.11 mm
eMeasure
the journal diameters which wear on these
bearing
inserts.
If the micrometer reading is less than
the service limit, replace the crankshaft.
A. Avoid oil hole.
Table
H50
Crankshaft Journal Diameter
Service Limit
39.96 mm
Crankshaft side clearance
Both sides of the
#4
crankshaft bearing work as thrust
bearings (stoppers of crankshaft axial movement)
.
Measure the crankshaft side clearance with a thickness
gauge as shown.
Replace
the crankcase halves as a set,
if the clearance exceeds the service limit.
NOTE
: The
upper
crankcase and lower crankcase halves
are
machined
at the factory in the assembled state, so
they must be replaced as a set.
A. Push the crankshaft toward one side.
Table
H51
Crankshaft Side Play
Service Limit
0.50 mm
Primary chain wear
A
primary
chain which
has
worn
so
that it is 1.4% or
more longer than when new is
no
longer safe for use and
should be
replaced.
Inspect the chain wear by measuring
the chain slack.
Split the crankcases, and
measure
the chain slack
(the vertical
movement midway between
the sprockets).
Replace
the chain if it
has worn past
the service limit.
A. Measure at the center.
Table
H52
Primary
Chain Slack
Service Limit
22 mm
Primary chain drive sprocket damage
Inspect the teeth on the
primary
chain drive sprocket
(located at the center of the crankshaft).
Any light
damage
can be corrected with an oilstone, but the crank-
shaft must be replaced if the teeth are badly
damaged.
Damaged
teeth on the
primary
chain drive sprocket
indi-
cate that the primary chain, by
which
it is driven, may
also be damaged. At the same time that the primary
chain drive sprocket is repaired or replaced, the primary
chain and the
primary
chain
driven
sprocket (located on
the secondary shaft) should
be
inspected, and then re-
placed
if
necessary.
A. Primary Chain Drive Sprocket
189

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