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SRM-2305, SRM-2305SI

10-21L-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.

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, L mixture needle

and H mixture needle ........................................ 7

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

Reference No.

10-21L-01

R E V I S E D :   2 0 0 5 0 2

INDEX

ISSUED: 200410

Summary of Contents for Echo SRM-2305

Page 1: ...on the latest products information available at the time of publication 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 mate...

Page 2: ...mm in 3 0 x 1000 0 12 x 39 4 3 0 x 920 0 12 x 36 2 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 J...

Page 3: ...r min kV 20 Secondary coil resistance k 1 0 2 0 Pole shoe air gaps mm in 0 3 0 4 0 012 0 016 Ignition timing at 7000 r min BTDC 28 Carburettor Idle adjust screw initial setting turn in 2 3 4 L mixtur...

Page 4: ...70 110 7 11 60 95 Cylinder M 5 70 100 7 10 60 90 Cylinder cover M 4 14 28 1 4 2 8 12 24 Muffler M 5 60 100 6 10 52 85 Others Blade fastening nut LM 10 280 320 28 32 245 280 Regular bolt nut M 3 6 10 0...

Page 5: ...nder bore When plating is worn and aluminium can be seen B Piston outer diameter Min 32 14 1 265 C Piston pin bore Max 8 030 0 3161 D Piston ring groove Max 1 6 0 063 E Piston ring side clearance Max...

Page 6: ...iston pin tool Removing and installing piston pin Use 8 mm dia adapter 9 897705 11520 Bearing tool Removing and installing con rod small end needle bearing 10 897712 04630 2 pin wrench Removing and in...

Page 7: ...L mixture needle and H mixture needle 1 Remove air cleaner cover and air cleaner 2 Turn L mixture needle clockwise until lean stop to cut easily 3 Using a sharp knife give triangle cut between the st...

Page 8: ...s after each adjustment of L mixture needle to assure accurate tachometer readings 5 Adjust WOT engine speed in the range of 8200 to 10000 r min by turning H mixture needle 6 After adjusting carburett...

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