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.
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