Page 389 - 2019 SHOP MANUAL CRF1000/A/D

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CRANKSHAFT/PISTON/CYLINDER
Install the lower crankcase onto the upper crankcase.
Make sure that the upper and lower crankcase are
seated securely.
Apply molybdenum oil solution to the crankcase main
journal bolt threads and seating surfaces. [1]
Install the crankcase main journal bolts [1].
Tighten the bolts in a crisscross pattern in 2 or 3 steps
to the specified torque.
TORQUE:43 N·m (4.4 kgf·m, 32 lbf·ft)

Remove the bolts and lower crankcase.

Measure the compressed plastigauge at its widest point
on each main journal to determine the oil clearance.
SERVICE LIMIT: 0.05 mm (0.002 in)
If the oil clearance exceeds the service limit, select a
replacement bearing.

BEARING SELECTION
Letters (A, B or C) Record the crankcase bearing support I.D. code letters
on the left side of [1] from left side of the upper crankcase as shown.
upper crankcase
are bearing support
I.D. codes from left
to right.

[1]

Numbers (1, 2 or 3) If you are replacing the crankshaft, record the
on the crank weight corresponding main journal O.D. code numbers [1] from
are main journal the crank weight.
O.D. codes from left If you are reusing the crankshaft, measure the main
to right.
journal O.D. with a micrometer.

[1]

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