Installing The Crankshaft - Yamaha R1 Series 2015 Service Manual

e. Install the balancer shaft journal lower bear-
ings "1" into the lower crankcase and assem-
ble the crankcase halves.
TIP
• Align the projections "a" of the balancer shaft
journal lower bearings with the notches "b" in
the crankcase.
• Do not move the balancer shaft until the clear-
ance measurement has been completed.
f. Tighten the bolts to specification in the tight-
ening sequence cast on the crankcase. Refer
to "CRANKCASE" on page 5-64.
g. Remove the lower crankcase and the balanc-
er shaft journal lower bearings.
h. Measure the compressed Plastigauge®
width "a" on each balancer shaft journal. If the
balancer shaft-journal-to-balancer shaft-jour-
nal-bearing clearance is out of specification,
select replacement balancer shaft journal
bearings.
a
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
4. Select:
• Balancer shaft journal bearing (J
TIP
• The numbers "A" stamped into the balancer
shaft web and the numbers "B" stamped into
the lower crankcase are used to determine the
replacement balancer shaft journal bearing siz-
es.
• "J
"–"J " refer to the bearings shown in the bal-
1 4
ancer shaft and lower crankcase illustration.
CRANKSHAFT AND BALANCER SHAFT
1
b
a
–J )
1 4
• If "J
"–"J " are the same, use the same size for
1 4
all of the bearings.
For example, if the crankcase "J
ancer shaft web "J
spectively, then the bearing size for "J
"J " (crankcase) - "J
1
6 - 2 - 1 = 3 (brown)
Bearing color code
0.White 1.Blue 2.Black 3.Brown
4.Green 5.Yellow 6.Pink
J J
1 2
J J J
1 2
EAS31077

INSTALLING THE CRANKSHAFT

1. Install:
• Crankshaft journal upper bearings
(into the upper crankcase)
• Crankshaft journal lower bearings
(into the lower crankcase)
• Crankshaft
5-88
1
" numbers are 6 and 2 re-
1
" (balancer shaft web) - 1 =
1
J
3
J
3 4
J J
1
" and bal-
" is:
1
J
4
J J
2 3 4