Echo SRM-265ES Series, SRM-265ESL, SRM-265ESU Service Data

SRM-265ES10-25L-01

1

1

2

INTRODUCTION

We are constantly working on technical
improvement of our products. For this reason,
technical data, equipment and design are
subject to c hange without noti ce. All
specifications and directions in this SERVICE
DATA are based on the latest products
informat ion available a t th e time of
publication.

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 CARBURETTOR ADJUSTMENT PROCEDURE .

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

3 SERVICE HINT .............................................. 9

3-1

Reassebling 2 Nord-lock washers on Muffler ...

3-2 Adjusting throttle cable ................................ 10

3-3 Replacing crankshaft ................................... 11

Reference No. 10-25L-01

R E V I SED : 20100 1

ISSUED: 200708

7

9

2

1 SERVICE INFORMATION
1-1 Specifications

Model SRM-265ES (L) SRM-265ES (U)

Dimensions* Length mm (in) 1780 (70.1) 1785 (70.2)

Width mm (in) 345 (13.6) 665 (26.1)

Height mm (in) 313 (12.3) 440 (17.3)

Dry weight* kg (lb) 6.1 (13.4) 6.2 (13.7)

Engine Type KIORITZ, air-cooled, two-stroke, single cylinder

Rotation Anticlockwise as viewed from the output end

Displacement cm3 (in3) 25.4 (1.55)

Bore mm (in) 34.0 (1.34)

Stroke mm (in) 28.0 (1.10)

Compression ratio 7.3

Carburetor Type Rotary type : Diaphragm, horizontal-draught, with primary

Model ZAMA RB-K89, RB-K94***

Ignition Type CDI (Capacitor discharge ignition) system

Spark plug BPMR8Y
Exhaust Muffler type Spark arrester muffler with catalyst

Starter Type ES (effortless-start)

Rope diameter x length mm (in) 2.8 x 850 (0.11 x 33.5)

Fuel** Type Premixed two-stroke fuel

Mixture ratio 50 : 1 (2%)

Petrol Minimum 89 octane

Two-stroke engine oil ISO-L-EGD (ISO/CD13738), JASO FC/FD

Tank capacity L (U.S.fl.oz.) 0.5 (16.9)

Clutch Type Centrifugal, 2-shoe pivot

Handle Type Front : Crescent loop with cushion grip U-handle with integrated

Drive shaft Type Solid, hollow type with 7-tooth

Diameter - Length mm 7.0 - 1540

Housing OD - ID mm 25.0 - 22.0

SERVICE INFORMATION

Digital magneto

Rear : Integrated control grip with cushion control grip

(in)

(in) (0.98 - 0.87)

(0.27 - 60.62)

SRM-265ES

Main pipe Length mm (in) 1500 (59.1)

Gear case Reduction ratio 1.4

Gear tooth Spiral bevel gear

Lubrication Lithium based grease or ECHO LUBE

Cutter Type Nylon line cutter 3-tooth blade (230 mm)

Pilot diameter for blade )0.1( 4.52 )ni(mm

Fastener type, size mm Left-hand thread nut, M10 x 1.25 pitch

Cutting rotation Anticlockwise as viewed from top

OD: Outer diameter. ID: Inner diameter. * Without shoulder harness and Nylon line head.

** Refer to Operator’s manual.
*** Refer to Technical Information No. 2009-395.

TM

SRM-265ES

1-2 Technical data

Model SRM-265ES (L) SRM-265ES (U)

Engine

Idling speed r/min 2600 - 3200

Wide open throttle speed r/min 9400 - 10400* 10200 - 11200**

Clutch engagement speed r/min 3600 - 4200

Compression pressure MPa (kgf/cm2) (psi) 0.99 (10.1) (143)

Ignition system

Spark plug gap mm(in) 0.6 - 0.7 (0.024 - 0.028)

Minimum secondary voltage at 1500 r/min kV 15

Primary coil resistance Ω 320 - 420

Secondary coil resistance kΩ 2.7 - 3.3

Pole shoe air gaps mm(in) 0.30 - 0.40 (0.012 - 0.016)

Ignition timing at 2000 r/min °BTDC 7

at 3000 r/min °BTDC 5

at 8000 r/min °BTDC 28

at 11000 r/min °BTDC 22

Carburettor

Venturi Size mm(in) 10.5 (0.413)

Throttle Bore mm(in) 10.5 (0.413)

Idle adjust screw initial setting turn in*** 3 1/4

Idle mixture needle initial setting turn back 1 1/2

Hi speed H mixture needle initial setting

Test Pressure, minimum MPa (kgf/cm2) (psi) 0.05 (0.5) (7.0)

Metering lever height mm(in) 0.1-0.25 (0.004-0.01) lower than diaphragm seat

BTDC: Before top dead centre.
*With Nylon line cutter and shield.

**With 3-tooth blade (230 mm).

*** Set idle adjust screw to the point that its tip just contacts throttle plate before initial setting.

SERVICE INFORMATION

turn back 1 1/2

3

4

1-3 Torque limits

Descriptions Size kgf• cm N•m in•lbf

Starter Starter pawl assembly M 8 160 - 200 16 - 20 140 - 175
system

Ignition Flywheel M 8 160 - 200 16 - 20 140 - 175
system

Fuel Carburettor M 5 30 - 45 3.0 - 4.5 25 - 40
system

Clutch Clutch shoe M 6 70 - 110 7 - 11 60 - 95

Cylinder cover Flanged bolt M 5* 30 - 45 3.0 - 4.5 25 - 40

Engine Crankcase M 5 70 - 110 7 - 11 60 - 95

Other Cutter fastener LM 10 280 - 320 28 - 32 245 - 280

Regular bolt, nut and screw M 3 6 -10 0.6 - 1 5 - 9

Starter case M 4* 25 - 35 2.5 - 3.5 22 - 33

Ignition coil M 4* 35 - 50 3.5 - 5 30 - 45

Fan cover M 5* 35 - 50 3.5 - 5 30 - 45

Spark plug M 14 130 - 170 13 - 17 112 - 150

Intake insulator M 5 60 - 80 6 - 8 55 - 70

Fuel tank with stand M 5* 40 - 60 4 - 6 32 - 55

Button bolt M 5* 20 - 30 2 - 3 17 - 25

Cylinder M 5 70 - 110 7 - 11 60 - 95

Muffler M 5 60 - 80 6 - 8 55 - 70

Exhaust guide M 4 14 - 28 1.4 - 2.8 12 - 24

Muffler cover M 5* 30 - 45 3.0 - 4.5 25 - 40

Top guard M 5* 20 - 40 2 - 4 20 - 32

SERVICE INFORMATION

M 4 15 -25 1.5 - 2.5 13 - 22

M 5 25 -45 2.5 - 4.5 22 - 40

M 6 45 -75 4.5 - 7.5 40 - 65

M 8 110 -150 11 - 15 95 - 130

SRM-265ES

LM: Left-hand thread. * Apply thread locking sealant. (See below)

** The torque differences among four bolts should not exceed 20 kgf•cm (2N•m, 17in•lbf) on one cylinder or crankcase

1-4 Special repairing materials

Material Location Remarks

Grease Drive shaft

Gear case

Rewind spring

Starter center post

Oil seal inner lips

Thread locking Starter case

sealant Fuel tank

Ignition coil Loctite #242, ThreeBond #1324 or equivalent

Fan cover

Top guard

Stand Loctite #222, Three Bond #1342 or equivalent

Muffler cover

Cylinder cover

Lithium based grease or ECHO LUBE

Loctite #675 or equivalent

TM