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SERVICE INFORMATION

PB-655
PB-755

4

1-4 Special repairing materials

Material

Location

Remarks

Grease

Rewind spring

Starter center post

Lithium based grease

Oil seal inner lips

Thread locking sealant

Ball bearing

Loctite #675 or equivalent

Muffler

Loctite #242, ThreeBond #1324 or equivalent

Starter case

Loctite #222, ThreeBond #1342 or equivalent

Cushion (Frame side)

Loctite #222, ThreeBond #1342 or equivalent

* Tapping screw

** Tapping bolt

*** Apply thread locking sealant (See below)

1-3 Torque limits

Descriptions

Size

kgf • cm

N• m

in• lbf

Starter

Starter pawl assembly

M 10

80 - 100

8 - 10

70 - 90

system Starter case

M 5***

35 - 50

3.5 - 5

30 - 45

Ignition Flywheel

M 10

200 - 240

20 - 24

175 - 210

system C.D.I module

M 5

60 - 100

6 - 10

50 - 90

Fuel

Spark plug

M 14

150 - 170

15 - 17

130 - 150

system Carburettor

M 5

40 - 55

4 - 5.5

35 - 48

Intake insulator

M 5

35 - 45

3.5 - 4.5

30 - 40

Fuel tank

M 5

20 - 40

2 - 4

17 - 35

Engine Crankcase

M 5

70 - 110

7 - 11

60 - 95

Cylinder

M 5

70 - 110

7 - 11

60 - 95

Engine plate

M 5*

20 - 40

2 - 4

17 - 35

Engine mount

M 6

100 - 150

10 - 15

90 - 130

Cylinder cover

M 5

40 - 55

4 - 5.5

35 - 48

Engine cover

M 5**

20 - 40

2 - 4

17 - 35

Muffler

M 6***

110 - 150

11 - 15

95 - 130

Muffler stay

M 5

70 - 110

7 - 11

60 - 95

Exhaust guide

M 4

15 - 25

1.5 - 2.5

13 - 22

Others

Fan

M 5

50 - 75

5 - 7.5

45 - 65

Fan case

M 5 **

40 - 55

4 - 5.5

35 - 48

Blower grid

M 5**

20 - 40

2 - 4

17 - 35

Cushion

Frame side

M 5***

20 - 40

2 - 4

17 - 35

Fan case side

Top

M 5 **

20 - 40

2 - 4

17 - 35

Bottoms

M 5**

80 - 100

8 - 10

70 - 90

Main pipe

M 5

20 - 40

2 - 4

17 - 35

High tension lead clip

M 5**

40 - 50

4 - 5

35 - 45

Harness fixture

M 5**

20 - 40

2 - 4

17 - 35

Throttle lever

††

M 6

20 - 30

2 - 3

17 - 26

Regular bolt, nut and screw

M 3

  6 - 10

0.6 - 1

5 - 9

M 4

15 - 25

1.5 - 2.5

13 - 22

M 5

25 - 45

2.5 - 4.5

22 - 40

M 6

45 - 75

4.5 - 7.5

40 - 65

M 8

110 - 150

11 - 15

95 - 130

Summary of Contents for PB-655

Page 1: ...f publication ECHO SERVICE MANUAL Ord No 403 12 contains lots of information for servicing these models 2 CONTENTS page 1 SERVICE INFORMATION 2 1 1 Specification 2 1 2 Technical data 3 1 3 Torque limi...

Page 2: ...gnition Type CDI Capacitor discharge ignition system Spark plug BPM8Y Exhaust Muffler type Spark arrestor muffler Starter Type Automatic rewind Rope diameter x length mm in 3 5 x 1000 9 64 x 39 1 2 Fu...

Page 3: ...e shoe air gaps mm in 0 3 0 4 0 012 0 016 Ignition timing BTDC 30 Carburettor Venturi size mm in 15 0 0 591 Throttle bore mm in 15 0 0 591 Idle adjust screw initial setting turn back 8 Idle mixture ne...

Page 4: ...15 17 130 150 system Carburettor M 5 40 55 4 5 5 35 48 Intake insulator M 5 35 45 3 5 4 5 30 40 Fuel tank M 5 20 40 2 4 17 35 Engine Crankcase M 5 70 110 7 11 60 95 Cylinder M 5 70 110 7 11 60 95 Engi...

Page 5: ...D Piston ring groove 1st Max 1 65 0 065 2nd Max 1 6 0 063 E Piston ring side clearance Max 0 1 0 004 F Piston pin outer diameter Min 9 98 0 393 G Piston ring width Min 1 45 0 057 H Piston ring end ga...

Page 6: ...0 2 pin wrench Removing and installing pawl carrier 13 897719 02830 Piston holder Making piston steady to remove and install piston rings 14 897726 21430 Oil seal tool Installing crankcase oil seal 15...

Page 7: ...carburettor change Idle adjust screw idle and H mixture needles turn for designated engine revolution through procedures indicated here may vary As long as idle and WOT engine speed is set in given r...

Page 8: ...um WOT engine speed just before lean drop off using 2 5mm blade screwdriver 6 Turn hi speed H mixture needle anticlockwise to reduce WOT engine speed 10 20 r min Minimum WOT engine speed after adjusti...

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