Echo CS-590 Manual De Instrucciones página 12

Fuel and lubricant
Whenever opening up the fuel tank, always loosen the cap very slowly and wait for
the tank pressure to be equalized before removing the cap.
 Fuel is a mixture of regular grade petrol and an air-cooled 2-stroke engine oil of reputable
brand name.
Minimum 89 Octane unleaded petrol is recommended.
Do not use fuel containing methyl alcohol or more than 10 % of ethyl alcohol.
 Recommended mixture ratio; 50 : 1 (2 %) for ISO-L-EGD Standard (ISO/CD 13738),
JASO FC, FD grade and ECHO Premium 50 : 1 oil or 25 : 1 (4 %) for JASO FB grade oil.
- Do not mix directly in engine fuel tank.
- Avoid spilling petrol or oil.
Spilled fuel should always be wiped up.
- Handle petrol with care, it is highly inflammable.
- Always store fuel in approved container.
∗ For fuel containing 20 % ethyl alcohol, re-adjustment of the carburettor is
required.
Correct as follows the adjuster needles (L and H) from the current level.
(See page 27 "Carburettor")
L: Low speed mixture adjuster
H: High speed mixture adjuster
T: Idle speed adjuster
- Low speed mixture adjuster (L): anticlockwise 1/8 turns open.
- High speed mixture adjuster (H): anticlockwise 1/4 turns open.
∗ Fuel containing more than 25 % ethyl alcohol is not approved for use in 2-stroke engine.
∗ Fuel containing more than 25 % ethyl alcohol may cause performance problems, loss of
power, overheating, fuel vapor lock, and unintended machine operation, including, but not
limited to, improper clutch engagement.
∗ Fuel containing more than 25 % ethyl alcohol may also cause premature deterioration of
fuel lines, gaskets, carburettors and other engine components.
Chain lubricant
Proper lubrication of the chain while in operation reduces the friction between the chain and
the guide bar to a minimum and assures a longer life time.
Use only special chain oil of high quality for this purpose.
Do not use any waste or reclaimed oil to avoid various problems with the oil pump.
Winter operation
NOTE
 Move the air shutter to cold position when the outside air temperature is 5 ºC or lower.
 For operation above 5 ºC, return the air shutter to its original place.
 Failing to do so will cause the engine to be overheated.
1. Air cleaner cover
2. Air shutter
3. Cold weather position (pull; opened)
4. Warm weather position (push; closed)
Use the air shutter to prevent carburettor troubles in winter.
 Remove the air cleaner cover.
 Pull the air shutter to cold weather position.
 For operation above 5 ºC, return (push) the air shutter to its original place.
Operation
CAUTION
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