PB-251, PB-255ES, ES-255ES
21-25F-00
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.
2
CONTENTS
page
1 SERVICE INFORMATION
.............................. 2
1-1 Speci
fi
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 CARBURETTOR ADJUSTMENT PROCEDURE
.. 7
2-1 General adjusting rules ............................... 7
2-2 Presetting idle adjust screw, idle mixture needle
and hi speed (H) mixture needle .......................... 7
2-3 Adjusting carburettor................................... 8
Reference No.
21-25F-00
I S S U E D : 2 0 0 8 0 1
