Removing The Crankshaft Journal Bearings; Checking The Crankshaft And Connecting Rods - Yamaha 2012 TMAX XP500A Service Manual

EAS26010
REMOVING THE CONNECTING RODS
The following procedure applies to all of the
connecting rods.
1. Remove:
• Connecting rod cap "1"
• Connecting rod "2"
• Big end bearings
TIP
Identify the position of each big end bearing so
that it can be reinstalled in its original place.
EAS26050
REMOVING THE CRANKSHAFT JOURNAL
BEARINGS
The following procedure applies to both of the
crankshaft journal bearings.
1. Remove:
• Crankshaft assembly
• Crankshaft journal bearing "1"
TIP
Remove the crankshaft journal bearing using
the plane bearing installer "2".
Plane bearing installer
90890-04139
TIP
Identify the position of each crankshaft journal
bearing so that it can be reinstalled in its origi-
nal place.
EAS26090
CHECKING THE CRANKSHAFT AND CON-
NECTING RODS
1. Measure:
• Crankshaft runout
Out of specification → Replace the crank-
shaft.
Runout limit
0.05 mm (0.0020 in)
2. Check:
• Crankshaft journal surfaces
• Crankshaft pin surfaces
• Bearing surfaces
Scratches/wear → Replace the crank-
shaft.
5-76
CRANKSHAFT