Installing The Crankshaft; Installing The Thrust Bearing - Yamaha MTN1000 2016 Service Manual

EAS31077

INSTALLING THE CRANKSHAFT

1. Install:
• Crankshaft journal upper bearings
(into the upper crankcase)
• Crankshaft journal lower bearings
(into the lower crankcase)
• Crankshaft
TIP
• Align the projections "a" on the crankshaft jour-
nal bearings "1" with the notches "b" in the
crankcase.
• Be sure to install each crankshaft journal bear-
ings in its original place.
EAS31799

INSTALLING THE THRUST BEARING

1. Install:
• Thrust bearing "1"
TIP
• Install the thrust bearings to the both side of the
journal #4 of the upper crankcase.
• The thickness of the thrust bearing is only one.
No need to adjust the clearance between the
thrust bearing and the crankshaft.
• Install the thrust bearing with the grooves "a"
side is facing the crankshaft.
• Apply engine oil on the grooves "a" side of the
thrust bearing.
CRANKSHAFT AND BALANCER SHAFT
J J J J
1 2 3 4
1
b
a
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Insert the thrust bearing "1" into the slot of the
upper crankcase as shown in the illustration
and slide it in the direction of the arrow.
TIP
When installing the thrust bearing, shift the
crankshaft to the left to widen the gap between
the crankshaft and the crankcase.
b. Insert the thrust bearing "2" into the slot of the
upper crankcase as shown in the illustration
and slide it in the direction of the arrow.
TIP
When installing thrust bearing "2", shift the
crankshaft to the right to widen the gap between
the crankshaft and the crankcase.
c. Check that the thrust bearing is inserted prop-
erly into the groove of the crankcase.
5-85
a
1
1
2