Specifications

Item

Standard

Service Limit

Crankcase, Crankshaft, Connecting

Rods

Connecting Rod Bend

– – –

TIR 0.2/100 mm

(0.008/3.94 in.)

Connecting Rod Twist

– – –

TIR 0.2/100 mm

(0.008/3.94 in.)

Connecting Rod Big End Side

0.13

0.38 mm (0.0051

0.0150 in.)

0.58 mm

Clearance

(0.023 in.)

0.044

0.081 mm (0.0017

Connecting Rod Big End Bearing

0.0032 in.)

0.11 mm

Insert/Crankpin Clearance

(0.0043 in.)

Crankpin Diameter:

29.987

30.000 mm (1.1806

1.1811 in.)

29.98 mm

(1.1803 in.)

Marking:

None

29.984

29.992 mm (1.1805

1.1808 in.)

– – –

○

29.993

30.000 mm (1.1808

1.1811 in.)

– – –

Connecting Rod Big End Inside

33.000

33.016 mm (1.2992

1.2998 in.)

– – –

Diameter:

Marking:

None

33.000

33.008 mm (1.2992

1.2995 in.)

– – –

○

33.009

33.016 mm (1.2996

1.2998 in.)

– – –

Connecting Rod Big End Bearing

Insert Thickness:

Brown

1.475 1.480 mm (0.05807

0.05827 in.)

– – –

Black

1.480 1.485 mm (0.05827

0.05846 in.)

– – –

Blue

1.485 1.490 mm (0.05846

0.05866 in.)

– – –

Connecting Rod Bolt Stretch

(Usable Range)

0.28

0.38 mm (0.0110

0.0150 in.)

– – –

Crankshaft Side Clearance

0.05

0.25 mm (0.0020

0.0098 in.)

0.45 mm

(0.0177 in.)

Crankshaft #3 Main Journal Width

21.09

21.14 mm (0.8303

0.8323 in.)

– – –

Crankshaft Runout

TIR 0.02 mm (0.0008 in.) or less

TIR 0.05 mm

(0.0020 in.)

0.028

0.060 mm (0.0011

Crankshaft Main Bearing

0.0024 in.)

0.09 mm

Insert/Journal Clearance

(0.0035 in.)

Crankshaft Main Journal Diameter:

30.984

31.000 mm (1.2198

1.2205 in.)

30.96 mm

(1.2189 in.)

Marking:

None

30.984

30.992 mm (1.2198

1.2202 in.)

– – –

1

30.993

31.000 mm (1.2202

1.2205 in.)

– – –

Crankcase Main Bearing Inside

34.000

34.016 mm (1.3386

1.3392 in.)

– – –

Diameter:

Marking

○

34.000

34.008 mm (1.3386

1.3389 in.)

– – –

None

34.009

34.016 mm (1.3389

1.3392 in.)

– – –

Item

Standard

Service Limit

Crankshaft Main Bearing Insert

Thickness:

Brown, Yellow

1.491

1.495 mm (0.0587

0.0589 in.)

– – –

Black, Green

1.495

1.499 mm (0.0589

0.0590 in.)

– – –

Blue, Purple

1.499

1.503 mm (0.0590

0.0592 in.)

– – –

Cylinder , Pistons

Cylinder (Upper Crankcase) Inside

67.000

67.012 mm (2.6378

2.6383 in.)

67.09 mm

Diameter

(2.6413 in.)

Piston Diameter

66.960

66.975 mm (2.6362

2.6368 in.)

66.81 mm

(2.6303 in.)

Piston/Cylinder Clearance

0.020

0.047 mm (0.0008

0.0019 in.)

– – –

Piston Ring/Groove Clearance:

Top

0.03

0.07 mm (0.0012

0.0028 in.)

0.17 mm

(0.0067 in.)

Second

0.03

0.07 mm (0.0012

0.0028 in.)

0.17 mm

(0.0067 in.)

Piston Ring Groove Width:

Top

0.82

0.84 mm (0.0323

0.0331 in.)

0.92 mm

(0.036 in.)

Second

0.82

0.84 mm (0.0323

0.0331 in.)

0.92 mm

(0.036 in.)

Piston Ring Thickness:

Top

0.77

0.79 mm (0.0303

0.0311 in.)

0.70 mm

(0.028 in.)

Second

0.77

0.79 mm (0.0303

0.0311 in.)

0.70 mm

(0.028 in.)

Piston Ring End Gap:

Top

0.12

0.22 mm (0.0047

0.0087 in.)

0.5 mm

(0.020 in.)

Second

0.30

0.45 mm (0.0118

0.0177 in.)

0.8 mm

(0.031 in.)

Oil

0.20

0.70 mm (0.0079

0.0276 in.)

1.0 mm

(0.039 in.)

Transmission

Shift Fork Ear Thickness

5.9

6.0 mm (0.232 0.236 in.)

5.8 mm

(0.228 in.)

Gear Groove Width

6.05

6.15 mm (0.238

0.242 in.)

6.25 mm

(0.246 in.)

Shift Fork Guide Pin Diameter

5.9

6.0 mm (0.232 0.236 in.)

5.8 mm

(0.228 in.)

Shift Drum Groove Width

6.05

6.20 mm (0.238

0.244 in.)

6.3 mm

(0.248 in.)

Con-rod Big End

Crankpin Diameter

Bearing Insert

Inside Diameter

Marking

Size Color

Part Number

Marking

None

○

Brown

92139-0167

None

None

Black

92139-0166

○

○

○

None

Blue

92139-0165

Crankshaft Main Bearing Insert Selection

Crankcase Main

Crankshaft Main

Bearing Insert*

Bearing Inside

Journal Diameter

Size Color

Part Number

Journal Nos.

Diameter Marking

Marking

○

Brown

92139-0247

1, 5

1

92139-0250

2, 4

Yellow

92139-0253

3

Black

92139-0246

1, 5

None

1

92139-0249

2, 4

Green

92139-0252

3

○

Black

92139-0246

1, 5

None

92139-0249

2, 4

Green

92139-0252

3

Blue

92139-0245

1, 5

None

None

92139-0248

2, 4

Purple

92139-0251

3