Honda NC700 2012 Service Manual page 503

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CRANKCASE/TRANSMISSION/BALANCER
MAINSHAFT BEARING
Temporarily install the right mainshaft bearing [1] onto
the mainshaft.
Turn the outer race of the right mainshaft bearing with
your finger.
The bearing should turn smoothly and quietly.
Also check that the inner race of the bearing fits tightly
on the mainshaft.
Replace the bearing if the inner race does not turn
smoothly, quietly, or if the inner race fits loosely on the
mainshaft.
Turn the inner race of the left mainshaft bearing [1] with
your finger.
The bearing should turn smoothly and quietly.
Also check that the outer race of the bearing fits tightly
in the upper crankcase.
Replace the bearing (page 14-12) if the inner race does
not turn smoothly, quietly, or if the outer race fits loosely
in the crankcase.
COUNTERSHAFT BEARING
Turn the outer race of countershaft bearing [1] with your
finger.
The bearing should turn smoothly and quietly.
Also check that the bearing inner race fits tightly on the
countershaft.
Replace the countershaft, collar, and bearing as an
assembly, if the race does not turn smoothly, quietly, or
if the inner race fits loosely on the countershaft.
The countershaft bearing cannot be replaced. If the
countershaft bearing is faulty, replace the countershaft
as an assembly.
LEFT MAINSHAFT BEARING
REPLACEMENT
Remove the following:
– Crankshaft (page 15-5)
– Piston (page 15-14)
– Countershaft/mainshaft (page 14-8)
To avoid burns, wear heavy gloves when handling the
heated upper crankcase.
Heat the upper crankcase to 80°C (176°F) evenly using
Do not use a torch
a heat gun.
to heat the upper
crankcase; it may
Tap the upper crankcase lightly and remove the left
cause warping.
mainshaft bearing [1].
14-12
[1]
[1]
[1]
[1]