Echo CS-400 Service Manual

2
SERVICE INFORMA TION
CS-400
1 SERVICE INFORMA TION
1-1 Speci fi cations
Model CS-400
Dimensions Length* mm(in) 393 (15.47)
Width mm(in) 245 (9.65)
Height mm(in) 277 (10.91)
Dry weight* kg(lb) 4.6 (10.1)
Engine Type YAMABIKO, air-cooled, two-stroke, single cylinder
Rotation Clockwise as viewed from the output end
Displacement cm
3
(in
3
) 40.2 (2.453)
Bore mm(in) 40.0 (1.575)
Stroke mm(in) 32.0 (1.260)
Compression ratio 6.5
Carburetor Type Diaphragm, horizontal-draught, with purge bulb**
Model Walbro WT-985
Venturi size-Throttle bore mm(in) 13.50 - 15.85 (0.532 - 0.624)
Ignition Type CDI (Capacitor discharge ignition) system
with electronic timing advancer and speed governor
Spark plug BPM8Y (CANADA : BPMR8Y)
Exhaust
Muffler type Spark arrester muffler with catalyst
Starter Type Automatic rewind
Rope diameter x length mm(in) 3.0 x 900 (0.14 x 35.4)
Fuel Type Premixed two-stroke fuel
Mixture ratio 50 : 1 (2 %)
Gasoline Minimum 89 octane gasoline
Two-stroke air cooled engine oi
l
ISO-L-EGD (ISO/CD13738), JASO M345-FC/FD
Tank capacity
L (U.S.fl.oz.)
0.41 (13.9)
Clutch
Type
Centrifugal, 3-shoe slide with 3-tension spring
Guide bar / Saw chain lubrication type Automatic with volume adjuster
Oil
Tank capacity
L (U.S.fl.oz.)
0.28 (9.5)
Sprocket
Type
Spur
Number of teeth
6
Pitch
in
3/8
Chain tensioner type Side Access
* Without guide bar and saw chain. ** Purge bulb on engine body
Cutting devices
Guide bar
Part No.
16A0ED3757
18A0ED3762
Called length in
16
18
Gauge in
0.050
Saw chain
Type
OREGON 91VG
Number of drive links
57
62
Pitch in
3/8
Gauge in
0.050

Echo CS-400 Specifications

General

Engine Displacement	40.2 cc
Weight (without bar and chain)	10.1 lbs
Oil Capacity	8.5 oz
Chain Pitch	3/8 inch
Chain Gauge	.050 in.
Vibration Level (Front/Rear Handle)	6.0 / 6.5 m/s²