background image

SRM-2655SI

10-25G-01

1

INTRODUCTION

We are constantly working on technical

improvement of our products. For this reason,

technical data, equipment and design are

subject  to  change  without  notice.  All

specifications, illustrations and directions in

this SERVICE DATA are based on the latest

products information available at the time of

publication.

ECHO  SERVICE  MANUAL  Ord.  402-24

(Model  :  SRM-2655)  contains  lots  of

information for servicing this model.

1

CONTENTS

page

1 SERVICE INFORMATION ............................. 2

1-1 Specification ............................................... 2

1-2 Technical data ............................................ 3

1-3 Torque limits ............................................... 4

1-4 Special repairing materials ........................ 4

1-5 Service limits .............................................. 5

1-6 Special tools ............................................... 6

2 EMISSION ADJUSTMENT GUIDE ............... 7

2-1 General adjusting rules .............................. 7

2-2 Presetting idle adjust screw and idle mixture

needle ........................................................ 7

2-3 Adjusting carburettor .................................. 8

Reference No.

10-25G-01

R E V I S E D :   2 0 0 5 0 2

INDEX

ISSUED: 200410

Summary of Contents for SRM-2655SI

Page 1: ...t the time of publication ECHO SERVICE MANUAL Ord 402 24 Model SRM 2655 contains lots of information for servicing this model 1 CONTENTS page 1 SERVICE INFORMATION 2 1 1 Specification 2 1 2 Technical...

Page 2: ...in 3 0 x 920 0 12 x 36 22 Fuel Type Premixed two stroke fuel Mixture ratio 50 1 2 Petrol Minimum 89 octane petrol RON Two stroke air cooled engine oil ISO L EGD ISO CD13738 JASO FC Tank capacity L U...

Page 3: ...tance k 12 13 Pole shoe air gaps mm in 0 3 0 4 0 012 0 016 Ignition timing at 1000 r min BTDC 25 Carburettor Main jet 37 Idle adjust screw initial setting turn in 2 1 2 Idle mixture needle initial set...

Page 4: ...shoe M 6 70 110 7 11 60 95 Engine Crankcase M 5 70 110 7 11 60 95 Cylinder M 5 70 110 7 11 60 95 Top guard M 5 30 45 3 0 4 5 25 40 Muffler M 5 60 100 6 10 52 85 Muffler cover M 5 14 28 1 4 2 8 12 24 O...

Page 5: ...ng is worn and aluminium can be seen B Piston outer diameter Min 33 91 1 335 C Piston pin bore Max 8 030 0 3161 D Piston ring groove Max 1 6 0 063 E Piston ring side clearance Max 0 1 0 004 F Piston p...

Page 6: ...nd installing piston pin Use 8 mm dia adapter 11 897712 04630 2 pin wrench Removing and installing pawl carrier 12 897714 24330 Oil seal tool Installing crankcase oil seals 13 897726 09130 Oil seal to...

Page 7: ...properly mixed at 50 1 with ISO L EGD 2 stroke oil 6 Two line nylon line head with properly cut lines must be installed for proper engine loading 2 2 Presetting idle adjust screw and idle mixture nee...

Page 8: ...00 r min NOTE Engine speed must be allowed to stabilize a minimum of 20 seconds after each adjustment of idle mixture needle to assure accurate tachometer readings 5 Check WOT engine speed WOT engine...

Reviews: