CS-4920 SPECIFICATIONS
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© 09/2022 ECHO Incorporated
Fuel / Oil Ratio 50:1
Gasoline
Use 89 octane unleaded. Do not use fuel
containing methyl alcohol, more than 10% ethyl
alcohol or 15% MTBE. Do not use alternative
fuels such as E-15 or E-85.
Oil
ISO-L-EGD (ISO/CD 13738) and JASO M345-
FD two-stroke, air-cooled engine oil.
Oiling system Adjustable automatic oiler
Chain oil capacity 330 ml (11.16 US. fl. oz.)
Starter system Automatic rewind starter
Clutch Centrifugal type
Sprocket type Spur type, 7-tooth, 0.325 in. pitch
Chain brake Manual and non-manual band brake type
Idle speed 3,000 RPM
Clutch engagement speed 4,200 RPM
Wide open throttle speed 12,500 RPM
Chain tensioner Side access system
Guide bar 16, 18, 20 in.
Saw chain 20BPX
Standard features
Front hand guard, Rear hand guard, Anti-
vibration device, Spiked bumper, Throttle
control lockout, Chain catcher, Spark arrester
muffler
Model CS-4920