Split the crankcase (see Crankcase Disassembly).
Remove the crankshaft [A] from the right crankcase half
Install the crankshaft to the right crankcase half.
Apply engine oil to the connecting rod big end bearing.
Since assembly of the crankshaft demands exacting tol-
erances, the disassembly and reassembly of the crankshaft
can only be done by a shop having the necessary tools and
If it should be necessary to disassemble the crankshaft,
use a press to remove the crankpin.
Since the assembly of the crankshaft demands exacting
tolerances, the disassembly and reassembly of the crank-
shaft can only be done by a shop having the necessary tools
Reassemble the crankshaft according to the standard tol-
erances in Specifications.
Connecting rod bend, twist (see Connecting Rod Bend
Inspection, Connecting Rod Twist Inspection)
Connecting rod big end radial clearance (see Crankshaft
Cold-fitting tolerance between crankpin and flywheels
0.8 ∼ 1.2 mm (0.03 ∼ 0.05 in.) [A]
64.3 mm (2.53 in.) [B]
Side clearance between the connecting rod big end and
one of flywheels (see Crankshaft Inspection)
Crankshaft runout (see Crankshaft Inspection)
Carefully align the oil passage hole in the right flywheel
[A] with the one in the crankpin [B] at rebuilding of the
crankshaft as shown.