SERVICE INFORMATION
CS-501SX, CS-501SXH
501sx
2
Cutting devices
Guide bar
Type
V40R21-68AA
V45R21-72AA
V50R21-80AA
Called length
cm
40
45
50
Gauge
in
0.058
Saw chain
Type
Oregon 21BPX, Carlton K2L
Number of drive links
68
72
80
Pitch
in
0.325
Gauge
in
0.058
1 SERVICE INFORMATION
1-1 Specifi cations
Models
CS-501SX, 501sx
CS-501SXH
Dimensions Length*
mm(in)
395 (15.6)
Width
mm(in)
235 (9.3)
Height
mm(in)
290 (11.4)
Dry weight*
kg(lb)
4.7 (0.2)
4.9 (10.8)
Engine
Type
YAMABIKO, air-cooled, two-stroke, single cylinder
Rotation
Clockwise as viewed from the output end
Displacement
cm
3
(in
3
)
50.2 (3.063)
Bore
mm(in)
44.0 (1.732)
Stroke
mm(in)
33.0 (1.299)
Compression ratio
7.2
Carburetor
Type
Diaphragm horizontal-draft
Model
Walbro WT-1139
Venturi size-Throttle bore
mm(in)
13.5 - 15.85 (0.531 - 0.624)
Ignition
Type
CDI (Capacitor discharge ignition) system
Spark plug
NGK BPMR8Y
Exhaust
Muffl er type
Spark arrester muffl er
Starter
Type
Automatic Rewind
Rope diameter x length
mm(in)
3.8 x 910 (0.15 x 35.8)
Fuel
Type**
Mixed two-stroke fuel
Mixture ratio
50 : 1 (2 %)
Gasoline
Minimum 89 octane petrol
Two-stroke air cooled engine oi
l
ISO-L-EGD (ISO/CD13738), JASO FC/FD
Tank capacity
L (U.S.fl .oz.)
0.5 (16.9)
Clutch
Type
Centrifugal type
Guide bar / Saw chain lubrication type
Automatic with volume adjuster
Oil
Tank capacity
L (U.S.fl .oz.)
0.28 (9.5)
Auto oiler
Type
Clutch driven type
Sprocket
Type
Floating rim
Number of teeth
7
Pitch
in
0.325
Heated handle
---
Equipped
* Without guide bar and saw chain.
** Premixed alkylate fuel for 2-stroke can be used.
