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• Remove the lower crankcase and measure the width of the
compressed plastigauge using the envelope scale. This mea-
surement should be taken at the widest part of the com-
pressed plastigauge.
_ Balancer
shaft
journal
oil
clearance:
Standard: 0.020 - 0.044 mm (0.00079 - 0.00173 in)
Service Limit: 0.080 mm (0.031 in)
• If the oil clearance exceeds the service limit, select the speci-
fied bearings from the bearing selection table.
• Check the corresponding crankcase journal
1.0. code number
®, "A" or "B" which is stamped on the rear of upper crank-
case.
• Check the corresponding balancer shaft journal
0.0.
code
number
@, "A" or "B" which is stamped on the balancer shaft.
_ Bearing selection table
Balancer
shaft
journal
0.0.
@
Code
A
B
Crankcase
A Green
Black
I.D.®
B Black
Brown
_ Crankcase 1.0. specification
Code
1.0. specification
A
26.000 - 26.008 mm
(1.0236 - 1.0239 in)
B
26.008 - 26.016 mm
(1.0239 - 1.0243 in)
_ Balancer
shaft
journal
0.0.
specification
Code
0.0.
specification
A
22.992 - 23.000 mm
(0.9052 - 0.9055 in)
B
22.984 - 22.992 mm
(0.9049 - 0.9052 in)
'TUti
09900-20205: Micrometer (0 - 25 mm)
_ Bearing
thickness
specification
Color (Part No.) Thickness
Green
1.486 - 1.490 mm
(12229-40F50-0AO)
(0.0585 - 0.0587 in)
Black
1.490 - 1.494 mm
(12229-40F50-0BO)
(0.0587 - 0.0588 in)
Brown
1.494 - 1.498 mm
(12229-40F50-0CO) (0.0588 - 0.0590 in)
NOTE:
The balancer shaft journal bearings on upper
and
middle crank-
cases are the same.
ENGINE
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