Disassembling The Crankcase; Removing The Crankshaft Journal Bearing; Removing The Connecting Rods; Checking The Crankcase - Yamaha 2007 XP500 Service Manual

EAS25560

DISASSEMBLING THE CRANKCASE

1. Remove:
Crankcase bolts
G
NOTE:
Loosen each bolt 1/4 of a turn at a time, in stag-
es and in a crisscross pattern. After all of the
bolts are fully loosened, remove them.
2. Remove:
Left crankcase
G
ECA13900
CAUTION:
Tap on one side of the crankcase with a
soft-face hammer. Tap only on reinforced
portions of the crankcase, not on the crank-
case mating surfaces. Work slowly and care-
fully and make sure the crankcase halves
separate evenly.
3. Remove:
Dowel pins
G
EAS26050
REMOVING THE CRANKSHAFT JOURNAL
BEARING
1. Remove:
Crankshaft assembly
G
Crankshaft main journal bearings "1"
G
NOTE:
Remove the main journal bearing by the plane
bearing installer "2".
Plane bearing installer
90890-04139
CRANKCASE AND CRANKSHAFT
NOTE:
Identify the position of each crankshaft main
journal bearing so that it can be reinstalled in its
original place.
EAS26010

REMOVING THE CONNECTING RODS

The following procedure applies to all of the con-
necting rods.
1. Remove:
Connecting rod "1"
G
Big end bearings
G
NOTE:
Identify the position of each big end bearing so
that it can be reinstalled in its original place.
EAS25580

CHECKING THE CRANKCASE

1. Thoroughly wash the crankcase halves in a
mild solvent.
2. Thoroughly clean all the gasket surfaces and
crankcase mating surfaces.
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