Crankshaft Bearing Replacement

Main Journal Bearing Selection

Record the crankcase I D. code letters stamped on the left side of the upper crankcase.

NOTE

Letters (A. 6 or C (on the upper crankcase are the codes for the main journal I.D.s from the left side.

(1)t.D. CODE LETTERS

(1)t.D. CODE LETTERS

Record the corresponding main journal O.D. code numbers from the crank weight.

NOTE

Numbers (1 or 2)on the crank weight are the codes for the main journal O D.s from the left.

Cross reference the case and journal codes to determine the replacement bearing color code

Crankcase I D. code

Main journal O D code \

A

8

(1.41731 4176 in)

36.008 36.01 6 mir (1.41761.4180 in)

36 01636.024mm (1.41801.4183 in)

1

32.992-33.000 ran (1 .2989-1.2992 in)

(Pink)

(Yellow)

(Green)

2

32.984-32.992 {1 .2986-1 .2989 in)

(Yellow)

(Green)

(Brown)

Brown : 1 .492 1.496 ™ (0.0587-0.0589 in) Green : 1.488 1.492 mm [0.0586-0.0587 in) Yellow 1.484-1 .488 » (0.0584 0.0586 in) Pink : 1 .480-1 .484 rant (0.0583 0.0584 in)

(DMAIN JOURNAL O.D. CODE NUMBERS

«J)

Oui 11 p

QrÀ^ŒTB,.

(DMAIN JOURNAL BEARINGS

(2) COLOR CODE

© y

9 j o y

Connecting Rod Bearing Selection

Record the connecting rod I D code numbers on the rods. NOTE

Numbers (1 or 2 ]on the connecting rods are the codes for the connecting rod I.D.s.

(1 )CONNECTING ROD I D CODE NUMBER

Record the crankpin O.D. code letters from the crank weight.

NOTE

• Letters (A or B) on the crank weight are the codes for the crankpin O.D.s from the left side

Cross reference the crankpin and rod codes to determine the replacement bearing color code.

Connecting rod

1

2

I.D. code

36.000-

36.003-

Crankpin O D code

36.008 inn ¡1.41731,4176 in)

36.016 mm (1.41761.4180 in)

A

32.992-33.000 mm

C

B

<1.2989-1 2992 in)

(Yellow)

(Green)

B

32 984-32,992 nrat

B

A

<1 2986 1.2989 in)

IGreen)

(Brownl

A : Brown : 1 .494-1 498 inn {0.0588 0.0590 in} B : Green : 1 490 1 .494 mm (0.0587-0.0588 in) C : Yellow : 1.486-1.490 mm (0.0585-0.0587 in)

Connecting Rod Selection

The weight code stamped on the connecting rod is an alphabetical coda.

Be sure to use the connecting rods having the same weight code in an engine.

CAUTION

• If a connecting rod having the different weight code is to be used, be sure that the difference in weight (code) is held within a single weight rank.

Starter Clutch Needle Bearing Replacement

Remove the needle bearing with a commercially available universal bearing puller.

CAUTION

To protect the crankshaft main joural from the bear ing puller claws, cover the mainshaft journal properly ; worn main journal bearings are usable as protectors.

Universal Alphabetical Codes

(1 (WEIGHT CODE

(ALPHABETICAL CODE)

(1 (WEIGHT CODE

(ALPHABETICAL CODE)

Drive a new needle bearing onto the crankshaft.

Crankcase assembly collar 07964-MB00200

(DCRANKCASE ASSEMBLY COLLAR

(21NEEDLE BEARING

Requisite Service

• Crankcase separationipage 10-2) ■ Crankcase assembly(page 10 6)

Procedure

Q'ty

Remarks

Bomovaf Order

(1)

Countershaft bearing set plate bolt

2

(2)

Countershaft bearing set plate

1

(3)

Mainshaft/Countershaft assembly

1/1

(4)

Countershaft end plate

1

(5)

Dowel pin

1

(6)

Countershaft bearing stopper

1

Installation Order

(6}

Countershaft bearing stopper

1

(5)

Dowel pin

1

(4)

Countershaft end plate

1

<3>

Mainshaft/Countershaft assembly

* Align the hole in the countershaft needle bearing case with the pin in the upper crankcase.

• Align the groove in the countershaft bearing with the stopper, and pin on the bearing with the groove in the crankcase

(2)

Countershaft bearing set plate

1

Install the bearing set plate with the"0UT SIDE"mark facing out

(1)

Countershaft bearing set plate bolt

2

When installing, apply a locking agent to the threads of the bolts.

+1 0

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