GT-225, SRM-225
10-21S-01
1
1
INTRODUCTION
We are constantly working on technical im-
provement of our products. For this reason, 
technical data, equipment and design are 
subject to change without notice. All speci-
fications and directions in this SERVICE 
DATA are based on the latest products infor-
mation available at the time of publication.
ECHO SERVICE MANUAL Ord. 402-35 
(Model : GT-225, SRM-225) contains lots 
of information for servicing this model.
NOTE : Corrected tightening torque of 
muf er cover on page 4.
 
    
   
   
   
CONTENTS
 
page
1 SERVICE INFORMATION .................... .......... 2
1-1 Speci  cation ................................................... 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 CARBURETOR ADJUSTMENT PROCEDURE ......7
2-1  General  adjusting  rules . .............................. 7
2-2  Presetting Idle adjust screw, Idle mixture 
needle and Hi speed mixture needle ..................... 7
2-3  Adjusting carburetor.................................... 8
Reference No.
 
10-21S-01
REVISED: 201304
ISSUED: 200810