Service Manual — page 369 of 715

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CRANKSHAFT/TRANSMISSION 9-23
Crankshaft and Connecting Rods

• Measure the connecting rod big end inside diameter, and
  mark each connecting rod big end in accordance with the
    inside diameter.
•   Tighten the connecting rod big end nuts to the specified
    torque (see Connecting Rod Installation).
                               NOTE
    ○The mark already on the big end should almost coincide
     with the measurement.

    Connecting Rod Big End Inside Diameter Marks
        None     37.500 ∼ 37.508 mm (1.4764 ∼ 1.4766 in.)
          ○       37.509 ∼ 37.516 mm (1.4767 ∼ 1.4770 in.)
     Big End Cap [A]
     Connecting Rod [B]
     Weight Mark, Alphabet [C]
     Diameter Mark (Around Weight Mark) [D]: “○” or no
     mark

• Select the proper bearing insert [A] in accordance with the
  combination of the connecting rod and crankshaft coding.
     Size Color [B]
Con-rod Big End        Crankpin          Bearing Insert
Inside Diameter        Diameter
    Marking            Marking      Size Color   Part Number
        None               ○          Brown      92139-0124
        None             None
                                      Black      92139-0123
         ○                 ○
         ○               None          Blue      92139-0122

• Install the new inserts in the connecting rod and check
  insert/crankpin clearance with the plastigage.
Crankshaft Side Clearance Inspection
• Insert a thickness gauge [A] between the crankcase main
  bearing and the crank web at the #3 journal to determine
    clearance.
    If the clearance exceeds the service limit, replace the
    crankcase halves as a set.
                               NOTE
    ○The upper and lower crankcase halves are machined
     at the factory in the assembled state, so the crankcase
     halves must be replaced as a set.

    Crankshaft Side Clearance
      Standard:      0.09 ∼ 0.19 mm (0.0035 ∼ 0.0075 in.)
      Service Limit:   0.39 mm (0.0154 in.)