Be sure to install the starter clutch roller to the starter clutch drive gear so that the circlip is outside

CRANKSHAFT

CRANKSHAFT

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Order

Job/Part

Q'ty

Remarks

Removing the crankshaft assembly

Remove the parts in the order listed.

Crankcase

Refer to "CRANKCASE".

Starter clutch

Refer to "STARTER CLUTCH".

1

Crankshaft

1

2

Oil seal

1

Timing chain

1

Refer to "INSTALLING THE

1

CRANKSHAFT ASSEMBLY".

5

HY-VO chain

1

6

Crankshaft journal bearings

10

Refer to "REMOVING/INSTALLING THE CRANKSHAFT ASSEMBLY".

7

HY-VO chain guide

1

For installation, reverse the removal procedure.

CONNECTING ROD

Order

Job/Part

Q'ty

Remarks

Connecting rod bolt Coonecting rod Connecting rod cap Connecting rod bearing

iii i COCO-sf-sfCO

Remove the parts in the order listed -i Refer to "INSTALLING THE -1 CONNEECTING RODS."

" Refer to "REMOVING/INSTALLING THE _ CONNECTING RODS."

For installation, reverse the removal procedur.

Upper Xjr 1300

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REMOVING THE CRANKSHAFT ASSEMBLY

1. Remove: ccrankshaft assembly ® ccrankshaft journal upper bearings (from the upper crankcase)

NOTE:

Identify the position of each crankshaft journal upper bearing so that it can be reinstalled in its original place.

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REMOVING THE CONNECTING RODS 1. Remove: cconnecting rods ® Cbig end bearings

NOTE:

Identify the position of each big end bearing so that it can be reinstalled in its original place.

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CHECKING THE CRANKSHAFT AND CONNECTING RODS

1. Measure: ccrankshaft runout Out of specification ^ Replace the crankshaft.

Crankshaft runout Less than 0.02 mm

ccrankshaft journal surfaces ccrankshaft pin surfaces Cbearing surfaces

Scratches/wear ^ Replace the crankshaft.

3. Measure: ccrankshaft-journal-to-crankshaft-journal-

bearing clearance

Out of specification ^ Replace the crankshaft journal bearings.

Crankshaft-journal to crankshaft-journal-bearing clearance 0.030 x 0.064 mm

CAUTION: _

Do not interchange the crankshaft journal bearings. To obtain the correct crankshaft-journal-to-crankshaft-journal-bearing clearance and prevent engine damage, the crankshaft journal bearings must be installed in their original positions. 4-74 _

a. Clean the crankshaft journal bearings, crankshaft journals, and bearing portions of the crankcase.

b. Place the upper crankcase upside down on a bench.

c. Install the crankshaft journal upper bearings © and the crankshaft into the upper crank-case.

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