Yamaha YZF-R6 99, Service Manual

Page: 208 / 400

4-80
CRANKSHAFT
ENG
NOTE:
NOTE:
NOTE:
NOTE:
a. Clean the crankshaft journal bearings,
crankshaft journals, and bearing portions of
the crankcase.
b. Place the upper crankcase upside down on a
bench.
c. Install the crankshaft journal upper bearings
1 and the crankshaft into the upper crank-
case.
Align the projections
a
on the crankshaft jour-
nal upper bearings with the notches b in the
upper crankcase.
d. Put a piece of Plastigauge

2 on each
crankshaft journal.
Do not put the Plastigauge

over the oil hole in
the crankshaft journal.
e. Install the crankshaft journal lower bearings
into the lower crankcase and assemble the
crankcase.
Align the projections
a
on the crankshaft jour-
nal lower bearings with the notches b in the
lower crankcase.
Do not move the crankshaft until the clearance
measurement has been completed.
f. Tighten the bolts to specification in the tight-
ening sequence cast on the crankcase.
Bolt 15 27
12 Nm (1.2 m kg)
Bolt
13 14
14 Nm (1.4 m kg)
Bolt 1 12
24 Nm (2.4 m kg)
Lubricate the crankcase bolt threads with en-
gine oil.