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ENG
CRANKCASE AND CRANKSHAFT
INSPECTION
EC4N4201
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
0.1 ~ 0.4 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)
—
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
Summary of Contents for TTR90(M)
Page 45: ...GEN INFO MEMO...
Page 55: ...GEN INFO MEMO...
Page 101: ...SPEC MEMO...
Page 269: ...ELEC MEMO...
Page 279: ...ELEC MEMO...
