Echo CS-610 Service Data
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 and directions in this SERVICE
DATA are based on the latest product information available at the time of publication.
ECHO SERVICE MANUAL Ord. 401-31
(Model : CS-600) contains lots of information for servicing this model.
SERVICE DATA
CHAIN SAW
ECHO:
CS-610
STAGE MODEL
(Serial number : 37000001 and after)
CONTENTS
page
1 SERVICE INFORMATION
.............................. 2
1-1 Specifi cation ............................................... 2
1-2 Technical data ............................................. 3
1-3 Torque limits................................................ 4
1-4 Special repairing materials ......................... 5
1-5 Service limits............................................... 6
1-6 Special tools ............................................... 7
2
CARBURETTOR ADJUSTMENT PROCEDURE
.. 8
2-1 General adjusting rules ............................... 8
2-2 Presetting Idle adjust screw, L mixture needle
and H mixture needle ....................................... 8
2-3 Adjusting carburettor................................. 10
Reference No.
01-59D-00
ISSUED: 201201
CS-610
01-59D-00
1
0
1 SERVICE INFORMATION
1-1 Specifi cations
Dimensions Length mm(in) 448 (17.64)
Width mm(in) 246 (9.69)
Height mm(in) 296 (11.65)
Dry weight* kg(lb) 6.0 (13.2)
Engine Type YAMABIKO, air-cooled, two-stroke, single cylinder
Ventilated piston, Semi-automatic decompression
Rotation Clockwise as viewed from the output end
Displacement cm
3
(in3) 59.8 (3.649)
Bore mm(in) 45.0 (1.772)
Stroke mm(in) 37.6 (1.480)
Compression ratio 7.2
Carburettor Type Diaphragm horizontal-draught
Model Walbro HDA-268A
Venturi size-Throttle bore mm(in) 15.08 - 19.03 (0.594 - 0.749)
Ignition Type CDI (Capacitor discharge ignition) system
Digital magneto
Spark plug BPMR8Y
Exhaust Muffl er type Spark arrester muffl er
Starter Type Automatic rewind
Rope diameter x length mm(in) 4.0 x 950 (0.15 x 37.4) : Kevlar
Fuel Type Premixed two-stroke fuel
Mixture ratio
50 : 1 (2 %)
Petrol Minimum 89 octane gasoline
Two-stroke air cooled engine oil ISO-L-EGD (ISO/CD13738), JASO FC/FD
Tank capacity L (U.S.fl .oz.) 0.57 (19.3)
Clutch Type
Inboard clutch : Centrifugal, 3-shoe slide with 3-tension spring
Guide bar / Saw chain lubrication type Automatic with volume adjuster
Tank capacity, oil L (U.S.fl .oz.) 0.3 (10.1)
Sprocket Type Floating rim
Number of teeth 7
Pitch in 3/8
* Without guide bar and saw chain.
Carlton Saw chain A2LM
Oregon Saw chain 73LGX
Cutting devices
Guide bar
Type 45RS58-3/8E 50RS58-3/8E 60RS58-3/8E
Called length cm 45 50 60
Gauge in 0.058
Saw chain
Number of drive links 64 72 84
Pitch in 3/8
Gauge in 0.058
SERVICE INFORMATION CS-610
2
1-2 Technical data
Engine
Idling speed r/min 2,800
- 200
+ 400
Wide open throttle speed* r/min 11,800 - 12,800
Clutch engagement speed r/min 4,000
Engagement Minimum
†
r/min 3,500
Compression pressure MPa (kgf/cm
2
) (psi) 1.01 (10.3) (146)
Ignition system
Spark plug gap mm(in) 0.6 - 0.7 (0.024 - 0.028)
Minimum secondary voltage at 1,500 r/min kV 15
Primary coil resistance kΩ 117
- 121
Secondary coil resistance kΩ 2.5 - 2.9
Pole shoe air gaps mm(in) 0.30 - 0.40 (0.012 - 0.016)
Ignition timing at 3,000 r/min °BTDC 6
at 8,000 r/min °BTDC 24
at 10,000 r/min °BTDC 30
at 12,000 r/min °BTDC 27
PET-9000 Parameter 1 332
Parameter 2 05
Carburettor
Idle adjust screw initial setting turn in** 1
L mixture needle initial setting turns out*** 1 3/4
H mixture needle initial setting turns out*** 3/4
Test Pressure, minimum MPa (kgf/cm
2
) (psi) 0.05 (0.5) (7.0)
Metering lever height mm(in) Flush with diaphragm seat
Chain oil discharge volume at 7,000 r/min Adjustable 1.5 - 13 (0.05 - 0.39)
mL/min(U.S.fl .oz./min) (Factory set 7.0 mL/min)
BTDC: Before top dead centre.
*With 50 cm guide bar and properly adjusted saw chain.
**Set idle adjust screw to the point that its tip just contacts throttle plate before initial setting.
***Turn L/H mixture needles anticlockwise from point that needle is lightly seated.
†
If clutch engagement speed is lower than minimum clutch engagement speed, replace clutch assembly with
new one.
SERVICE INFORMATIONCS-610
3
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