Honda SH300 2006 Manual page 306

CRANKCASE/CRANKSHAFT
MAIN JOURNAL BEARING
BEARING INSPECTION
Remove the crankshaft (page 14-5).
Clean off any oil from the bearings.
Check the bearings for unusual wear, damage or
peeling and replace them if necessary.
Measure the main journal bearing I.D. at between
the bearing groove and crankcase outer side end of
the bearing, and 90 degrees to the index mark.
Clean off any oil from the crankshaft journals.
Measure and record the crankshaft main journal
O.D.
SERVICE LIMIT: 39.976 mm (1.5739 in)
Calculate the main journal oil clearance.
SERVICE LIMIT: 0.07 mm (0.003 in)
If the clearance exceeds the service limit, select the
bearing.
BEARING SELECTION
Set a special tool and hydraulic press on the outside
of the crankcase.
TOOLS:
Driver, 40 x 42.7 mm
Driver base, 48.4 x 56 mm
Press the main journal bearings toward the outside
of the crankcase.
14-10
MAIN JOURNAL
BEARING
DRIVER
07965-VM00100
07946-KM90600
DRIVER BASE
DRIVER BASE
INDEX MARK
INSIDE
90°
OUTSIDE
MAIN JOURNAL
BEARING
DRIVER
BEARING