5 - 64
ENG
CRANKSHAFT
NOTE:
If either the left or right journal bearing is worn
or scratched, replace both bearings as a set.
c. Measure the crankshaft journal outside
diameter
a
in two places. If it is out of spec-
ification, replace the crankshaft.
d. Measure the journal bearing inside diame-
ter
b
in two places.
CAUTION:
When calculating the journal oil clearance,
use the larger of the two values from the
crankshaft journal and use the smaller of
the two values from the journal bearing.
e. If the journal bearing inside diameter is
“35.064” and the crankshaft journal outside
diameter is “35.014”, then the journal oil
clearance is:
If the oil clearance is out of specification,
select replacement bearings.
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Journal oil clearance:
Journal bearing inside diameter –
Crankshaft journal outside diameter =
35.064 – 35.014 = 0.050 mm
a
b
5. Select:
• crankshaft journal bearings
NOTE:
The numbers
1
on the crankcase are used to
determine the replacement crankshaft journal
bearing size.
È
Left crankcase
É
Right crankcase
1
È
1
É
Summary of Contents for 2004 YP400
Page 1: ...2004 YP400 S 5RU1 AE1 SERVICE MANUAL ...
Page 2: ......
Page 8: ......
Page 9: ...GEN INFO 1 ...
Page 11: ...GEN INFO ...
Page 28: ...SPEC 2 ...
Page 30: ...SPEC ...
Page 77: ...CHK ADJ 3 ...
Page 137: ......
Page 138: ...CHAS 4 ...
Page 210: ......
Page 211: ...ENG 5 ...
Page 286: ...COOL 6 ...
Page 288: ...COOL ...
Page 299: ...FI 7 ...
Page 301: ...FI ...
Page 342: ...ELEC 8 ...
Page 378: ...8 34 ELEC LIGHTING SYSTEM ...
Page 404: ......
Page 405: ...TRBL SHTG 9 ...
Page 415: ......
Page 416: ...YAMAHA MOTOR CO LTD 2500 SHINGAI IWATA SHIZUOKA JAPAN ...