Echo SRM-2655SI User Manual

SRM-2655SI10-25G-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

Echo SRM-2655SI Specifications

General

Engine Type	2-stroke
Displacement	25.4 cc
Cutting Width	17 inches
Handle Type	Loop handle
Shaft Type	Straight
Fuel Tank Capacity	0.5 liters
Fuel Capacity	14.9 oz

Summary

1 SERVICE INFORMATION

1-1 Specification

Detailed specifications including dimensions, weight, engine, and fuel system parameters.

1-2 Technical data

Key performance data like engine speed, compression pressure, spark plug gap, and carburetor settings.

1-3 Torque limits

Specified torque values for various fasteners and components during assembly and repair.

1-4 Special repairing materials

Recommended sealants and lubricants for specific repair tasks and components.

1-5 Service limits

Critical wear limits for engine components like cylinder bore, piston diameter, and ring end gap.

1-6 Special tools

List of specialized tools required for maintenance and repair procedures.

2 EMISSION ADJUSTMENT GUIDE

2-1 General adjusting rules

Pre-adjustment checks for engine condition, fuel, and installation readiness.

2-2 Presetting idle adjust screw and idle mixture needle

Initial setup procedure for carburetor idle screws and needles before fine-tuning.

2-3 Adjusting carburettor

Step-by-step instructions for adjusting the carburetor for optimal engine performance and emissions.