Echo CS-4920 Operator's Manual page 59

CS-4920
Model
Fuel / Oil Ratio
Gasoline
Oil
Oiling system
Chain oil capacity
Starter system
Clutch
Sprocket type
Chain brake
Idle speed
Clutch engagement speed 4,200 RPM
Wide open throttle speed 12,500 RPM
Chain tensioner
Guide bar
Saw chain
Standard features
X7503352100
© 09/2022 ECHO Incorporated
50:1
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.
ISO-L-EGD (ISO/CD 13738) and JASO M345-
FD two-stroke, air-cooled engine oil.
Adjustable automatic oiler
330 ml (11.16 US. fl. oz.)
Automatic rewind starter
Centrifugal type
Spur type, 7-tooth, 0.325 in. pitch
Manual and non-manual band brake type
3,000 RPM
Side access system
16, 18, 20 in.
20BPX
Front hand guard, Rear hand guard, Anti-
vibration device, Spiked bumper, Throttle
control lockout, Chain catcher, Spark arrester
muffler
SPECIFICATIONS
CS-4920
59