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ENG
CRANKCASE AND CRANKSHAFT
INSPECTION
Crankshaft
1. Measure:
● Runout limit a
● Connecting rod big end side clearance
b
● Connecting rod big end radial clear-
ance c
● Crank width d
Out of specification → Replace.
Use the dial gauge and a thickness
gauge.
Standard Limit
Runout
limit
—
0.03 mm
(0.0012 in)
Side
clearance
0.10 ~ 0.40 mm
(0.0039 ~ 0.0157 in)
—
Radial
clearance
0.010 ~ 0.025 mm
(0.0004 ~ 0.0010 in)
0.05 mm
(0.002 in)
Crack
width
42.95 ~ 43.00 mm
(1.691 ~ 1.693 in)
—
ASSEMBLY AND INSTALLATION
Crankcase
1. Apply:
● Sealant
On the crankcase (left).
NOTE:
● Clean the contacting surface of crankcase
(left and right) before applying the sealant.
● DO NOT ALLOW any sealant to come in
contact with the oil gallery a.
Quick gasket
®
:
ACC-QUICK-GS-KT
YAMAHA Bond No. 1215:
90890-85505