Operation; Fuel - Echo CS-310 Operator's Manual

OPERATION

OPERATION

Fuel

Use of unmixed, improperly mixed, or fuel older than 90 days, (stale fuel), may cause hard starting, poor
performance, or severe engine damage and void the product warranty. Read and follow instructions in the
Storage section of this manual.
Fuel containing more than 25% ethanol is NOT approved for use in ECHO 2-stroke gasoline engines.
Fuel containing more than 25% ethanol 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% ethanol may also cause premature
deterioration of fuel lines, gaskets, carburetors and other engine components.
Fuel Requirements
Gasoline - Use 89 Octane (mid grade or higher) gasoline known to be good quality. Gasoline may contain
up to 25% Ethanol. Gasoline containing methanol (wood alcohol) is NOT approved.
Two Stroke Oil - A two-stroke engine oil meeting ISO-L-EGD (ISO/CD 13738) and J.A.S.O. FD Standards
must be used. Echo brand premium Power Blend X
problems due to inadequate lubrication caused by failure to use an ISO-L-EGD (ISO/CD 13738) and
J.A.S.O. FD certified oil, such as Echo premium Power Blend X
Echo premium Power Blend X
engines sold in the past regardless of ratio specified in those manuals.
Handling Fuel
Fuel is VERY flammable. Use extreme care when mixing, storing or handling, or serious personal
injury may result.
Use an approved fuel container.
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DO NOT smoke near fuel.
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DO NOT allow flames or sparks near fuel.
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Fuel tanks/cans may be under pressure. Always loosen fuel caps slowly allowing pressure to
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equalize.
NEVER refuel a unit when the engine is HOT or RUNNING!
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DO NOT fill fuel tanks indoors. ALWAYS fill fuel tanks outdoors over bare ground.
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DO NOT overfill fuel tank. Wipe up spills immediately.
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Securely tighten fuel tank cap and close fuel container after refueling.
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Inspect for fuel leakage. If fuel leakage is found, do not start or operate unit until leakage is
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repaired.
Move at least 3m (10 ft.) from refueling location before starting the engine.
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18
TM
TM Universal 2-Stroke Oil may be mixed at 50:1 ratio for application in all Echo
Universal 2-Stroke Oil meets these standards. Engine
TM , will void the two-stroke engine warranty.
CS-310
X7503277900
©3/2020 ECHO Inc.