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SERVICE INFORMATION

SRM-2655SI

2

1  SERVICE INFORMATION

1-1 Specifications

Model

SRM-2655SI(L)

SRM-2655SI(U)

Dimensions Length*

mm(in)

1785 (70.3)

1790 (70.5)

Width

mm(in)

360 (14.2)

690 (27.2)

Height

mm(in)

350 (13.8)

460 (18.1)

Dry weight **

kg(lb)

5.9 (13.0)

6.5 (14.3)

Engine

Type

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

Rotation

Anticlockwise as viewed from the output end

Displacement

cm

3

(in

3

)

25.4 (1.550)

Bore

mm(in)

34.0 (1.339)

Stroke

mm(in)

28.0 (1.102)

Compression ratio

6.3

Carburettor

Type

Rotary valve type: Diaphragm, horizontal-draught, with primer (purge bulb)

Model

Walbro WYJ-192A

Venturi size-Throttle bore mm(in)

10.5 - 10.5  (0.41 - 0.41)

Ignition

Type

 TCI (Transistor controlled ignition) system

in a single integrated piece

Spark plug

 BPMR7A

Starter

Type

- start

Rope diameter x length

mm(in)

3.0 x 920  (0.12 x 36.22)

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), JASO FC

Tank capacity

L (U.S.fl.oz.)

0.64 (21.6)

Clutch

Type

Centrifugal, 2 - shoe pivot

Handle

Type

Front Crescent loop

U-shaped

U-shaped

w/cushion grip

Rear

Integrated control

    - - -

    - - -

grip w/cushion

Drive shaft

Type

Solid

Diameter - Length

mm(in)

7 - 1540 (0.28 - 60.6)

Housing

OD -ID mm(in)

25 - 22 (0.98 -0.87)

(Main pipe)

Length mm(in)

1500 (59.1)

Gear case

Reduction ratio

1.36

Gear tooth

Spiral bevel gear

Lubrication

Lithium based grease

Cutter

Type

Nylon line cutter, 3-tooth blade

, Others

Pilot diameter

mm(in)

25.4 (1.0)

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 cutter head.

** With standard cutter head, without shoulder harness.

† 

Install and use U-shaped handle when operating with steel blade.

Содержание SRM-2655SI

Страница 1: ...t 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...

Страница 2: ...in 3 0 x 920 0 12 x 36 22 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 JASO FC Tank capacity L U...

Страница 3: ...tance k 12 13 Pole shoe air gaps mm in 0 3 0 4 0 012 0 016 Ignition timing at 1000 r min BTDC 25 Carburettor Main jet 37 Idle adjust screw initial setting turn in 2 1 2 Idle mixture needle initial set...

Страница 4: ...shoe M 6 70 110 7 11 60 95 Engine Crankcase M 5 70 110 7 11 60 95 Cylinder M 5 70 110 7 11 60 95 Top guard M 5 30 45 3 0 4 5 25 40 Muffler M 5 60 100 6 10 52 85 Muffler cover M 5 14 28 1 4 2 8 12 24 O...

Страница 5: ...ng is worn and aluminium can be seen B Piston outer diameter Min 33 91 1 335 C Piston pin bore Max 8 030 0 3161 D Piston ring groove Max 1 6 0 063 E Piston ring side clearance Max 0 1 0 004 F Piston p...

Страница 6: ...nd installing piston pin Use 8 mm dia adapter 11 897712 04630 2 pin wrench Removing and installing pawl carrier 12 897714 24330 Oil seal tool Installing crankcase oil seals 13 897726 09130 Oil seal to...

Страница 7: ...properly mixed at 50 1 with ISO L EGD 2 stroke oil 6 Two line nylon line head with properly cut lines must be installed for proper engine loading 2 2 Presetting idle adjust screw and idle mixture nee...

Страница 8: ...00 r min NOTE Engine speed must be allowed to stabilize a minimum of 20 seconds after each adjustment of idle mixture needle to assure accurate tachometer readings 5 Check WOT engine speed WOT engine...

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