Echo CS-3500 User Manual
Page 2

1 SERVICE INFORMATION
1-1 Specifications
Dimensions Length*
mm(in)
386 (15.2)
Width*
mm(in)
223 (8.78)
Height
mm(in)
258 (10.2)
Dry weight*
kg(lb)
3.75 (8.27)
Engine
Type
KIORITZ, air-cooled, two-stroke, single cylinder
Two-piece casting, Ventilated piston
Rotation
Clockwise as viewed from the output end
Displacement
cm
3
(in
3
)
34.0 (2.075)
Bore
mm(in)
38.0 (1.496)
Stroke
mm(in)
30.0 (1.181)
Compression ratio
6.5
Carburettor Type
Diaphragm horizontal-draught
Supplier and Model
Walbro WT-504
Venturi size-Throttle bore mm(in)
11.11 - 15.85 (7/16 - 5/8)
Ignition
Type
CDI (Capacitor discharge ignition) system
in a single integrated piece, with electronic timing advancer
Spark plug
BPMR7A, RCJ7Y
Starter
Type
Automatic rewind
Rope diameter x length
mm(in)
3.0 x 890 (0.12 x 35.0)
Fuel
Type
Premixed two-stroke fuel (Refer to operator's manual.)
Tank capacity
cm
3
(U.S.fl.oz.)
320 (10.8)
Clutch
Type
Centrifugal, 3-shoe slide
Guide bar / Saw chain lubrication type
Automatic with volume adjuster
Tank capacity, oil cm
3
(U.S.fl.oz.)
180 (6.09)
Sprocket
Type
Spur
Number of teeth
6
Pitch
in
3/8 Low profile
Guide bar
Type
30RC50-3/8
35RC50-3/8
40RC50-3/8
Called length
cm
30
35
40
Gauge
in
0.050
Saw chain Number of drive links
47
53
58
Pitch
in
3/8 Low profile
Gauge
in
0.050
2
SERVICE INFORMATION
CS-3500
*Without guide bar and saw chain