Removing The Front Balancer Shaft; Removing The Balancer Shaft Journal Bearings; Removing The Crankshaft Journal Bearings; Removing The Connecting Rods - Yamaha XT1200Z 2010 Service Manual

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EAS23P1096

REMOVING THE FRONT BALANCER SHAFT

1. Remove:
• Front balancer shaft "1"
ECA23P1076
NOTICE
The front balancer shaft should not be disas-
sembled.
EAS23P1043
REMOVING THE BALANCER SHAFT
JOURNAL BEARINGS
1. Remove:
• Front balancer shaft journal lower bearings
(from the lower crankcase)
• Front balancer shaft journal upper bearings
(from the upper crankcase)
TIP
Identify the position of each front balancer shaft
journal bearing so that it can be reinstalled in its
original place.
EAS26040
REMOVING THE CRANKSHAFT JOURNAL
BEARINGS
1. Remove:
• Crankshaft journal lower bearings
(from the lower crankcase)
• Crankshaft journal upper bearings
(from the upper crankcase)
TIP
Identify the position of each crankshaft 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 cap
• Connecting rod
• Big end bearings
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1
5-95
CRANKSHAFT AND BALANCER
TIP
Identify the position of each connecting rod cap,
connecting rod, and big end bearing so that it
can be reinstalled in its original place.
EAS26070

CHECKING THE CRANKSHAFT

1. Measure:
• Crankshaft runout
Out of specification → Replace the crank-
shaft.
Runout limit C
0.020 mm (0.0008 in)
2. Check:
• Crankshaft journal surfaces
• Crankshaft pin surfaces
• Bearing surfaces
Scratches/wear → Replace the crankshaft.
3. Measure:
• Crankshaft-journal-to-crankshaft-journal-
bearing clearance
Out of specification → Replace the crank-
shaft journal bearings.
Journal oil clearance
0.020–0.044 mm (0.0008–0.0017
in)
ECA13920
NOTICE
Do not interchange the crankshaft journal
bearings. To obtain the correct crankshaft-
journal-to-crankshaft-journal-bearing clear-
ance and prevent engine damage, the crank-
shaft journal bearings must be installed in
their original positions.
M MMM M MMM M M MMM M
a. Clean the crankshaft journal bearings, crank-
shaft journals, and bearing portions of the
crankcase.
M MMM M M MMM M M MMM M MMM