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613GC OPERATOR’S MANUAL
7
SAFETY
THE FOLLOWING SYMBOL APPLIES TO ALL ITEMS LISTED ON THIS PAGE
A potential situation exists which, if not avoided, may result in
product or property damage.
Note: The chain-based cut off saw is equipped with a two-stroke engine and must always be run
using a mixture of gasoline and ICS
®
two-stroke engine oil. Its is important to accurately
measure the amount of oil to be mixed to ensure that correct mixture is obtained. When mixing
small amounts of fuel, even small inaccuracies can drastically affect the ratio of the mixture.
• This engine is designed to be operate on premium unleaded gasoline.
• Use high quality, unleaded gasoline with a minimum octane rating of 90. If lower octane
gasoline is used, engine temperature will increase which can result in a piston seizure and
damage to the engine.
• Fuel mixture: 25:1 gasoline/oil mixture. Incorrect fuel mixture is the number one cause of
piston seizure.
Use ICS
®
brand two-stroke engine oil, or other high quality 2-stroke oil that has been
formulated for air cooled power equipment.
• Never use two-stroke oil formulated for water-cooled two-cycle engines, such as outboard
motor oil.
• Never use motor oil intended for four-stroke engines.
ENGINE BREAK-IN
• It is very important to break-in a new engine to “seat” all moving parts, especially the piston
rings.
• To break-in the engine, run one full tank of 25:1 fuel at idle, cycling the throttle every 5 to 10
minutes to prevent loading.
• Failure to break-in an engine may result in piston seizure.
IMPORTANT