Echo CS-490 Operator's Manual - Technical Data
32
CS-490
* Technical data subject to change without notice.
TECHNICAL DATA
MODEL
cS-490
Dimension
L × W × H
mm
395 × 250 × 290
Mass
Power head, dry
kg
4.8 Without chain and guide bar
Engine
Type
Air-cooled two-stroke single cylinder
Displacement
mL (cm³)
50.2
Carburetor
Diaphragm type
Magneto
Flywheel magneto: CDI system
Spark plug
NGK BPMR8Y
Starter
Recoil starter
Power transmission
Automatic centrifugal clutch
Fuel
Mixture ratio
50:1ratiowithECHOPowerBlendX™,ISO-L-
EGD (ISO/CD 13738) and JASO M345-FD two-
stroke, air-cooled engine oil.
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.
Tank capacity
L
0.490
Oil
Bar and chain
ECHO bar and chain oil
Tank capacity
L
0.280
Guide bar and
saw chain
See page 23 for Chain and Guide Bar Combination
Lubrication
Adjustable automatic oil pump
Engine speed
Idle
r/min
2600 - 3600
Clutch engagement
3600 - 4200
Wide open throttle
11000 - 12500
Standard
features
Front hand guard, Rear hand guard,
Anti-vibration device, Spiked bumper,
Throttle control lockout, Chain brake, Chain catcher,
Spark arrestor muffler, Kick guard