Crankshaft Main Journal Diameter Marks

None: 35.984 ~ 35.992 mm (1.4167 ~ 1.4170 in.)

1: 35.993 ~ 36.000 mm (1.4170 ~ 1.4173 in.)

□: Crankshaft Main Journal Diameter Marks, "1" mark or no mark.

• Put the lower crankcase half on the upper crankcase half without bearing inserts, and tighten the case bolts to the specified torque and sequence (see Crankcase Assem­bly).

• Measure the crankcase main bearing bore diameter, and mark the upper crankcase half in accordance with the bore diameter.

NOTE

OThe mark already on the upper crankcase half should almost coincide with the measurement.

9-22 CRANKSHAFT/TRANSMISSION

Crankshaft/Connecting Rods Crankcase Main Bearing Bore Diameter Marks ○: 39.000 ∼ 39.008 mm (1.5354 ∼ 1.5357 in.) None: 39.009 ∼ 39.016 mm (1.5358 ∼ 1.5361 in.) □□ □□: Crankcase Main Bearing Bore Diameter Marks, "○" mark or no mark. • Select the proper bearing insert in accordance with the combination of the crankcase and the crankshaft coding. • Install the new inserts in the crankcase halves and check insert/journal clearance with a plastigage.

Crankshaft Main Bearing Insert Selection

Crankcase Main Bearing Bore Diameter Mark	Crankshaft Main Journal Diameter Mark	Bearing Insert*
Size Color	Part Number	Journal Nos
о		Brown	92028-1102	2, 3
92028-1274	1, 4
None	None	Blue	92028-1100	2, 3
92028-1272	1, 4
о	None	Black	92028-1101	2, 3
None		92028-1273	1, 4

*: The bearing inserts for Nos. 2 and 3 journals have oil grooves.

Crankshaft Side Clearance

• Measure the crankshaft side clearance.

OInstall the lower crankcase half on the upper crankcase

half, and turn the crankcase upside down. OInsert a thickness gauge [A] between the upper crankcase

[B] and the crank web [C] at the No.2 and No.3 journals

to determine clearance.

• If the clearance exceeds the service limit, replace the
crankcase halves as set.

CAUTION