Product Manual

12
Operation
Fuel and lubricant
 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.
Chain lubricant
 Proper lubrication of the chain while in operation minimizes friction between the chain,
the guide bar and sprocket, assuring longer service life.
Use ECHO genuine chain oil or ECHO recommended chain oil specially formulated for bars
and chains for proper lubrication.
These oils contain tackifiers, anti-aging and anti-oxidizing agents.
Consult your ECHO dealer for the proper chain oil.
 Never use waste or reclaimed oil to avoid various malfunctions with the oil system.
Lubrication problems caused by the use of improper oil will void the warranty.
 Especially, vegetable based chain oil quickly turns to resin and adheres to oil pump, bar
and chain, causes malfunctions and shorten product life.
Flash chain oil system with mineral or chemical based chain oil after use, if it is required to
use vegetable oil due to local / municipal rule or any other reason.
 For a short time emergency operation, virgin SAE 10W-30 motor oil can be used.
Winter operation
1. Cylinder cover
2. Plug
3. Cold weather "storage" position
4. Warm weather position
Use the plug to prevent carburettor troubles in winter.
 Release the cylinder cover latch and remove the cylinder cover.
 Remove the plug from warm weather position, and install into cold weather "storage"
position.
 For operation above 5 ºC, return the plug to its original place.
CAUTION
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.
NOTE
 The plug should be installed to the "storage" position when the outside air temperature
is 5 ºC or lower.
 For operation above 5 ºC, return the plug of the cylinder cover to its original place.
 Failing to do so will cause the engine to be overheated.