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NOTICE: 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 Long
Term Storage section of this manual.
WARNING
Alternative fuels, such as E15 (15% ethanol), E-85 (85% ethanol) or any fuels not meeting Shindaiwa re-
quirements are NOT approved for use in Shindaiwa 2-stroke gasoline engines. Use of alternative fuels may
cause performance problems, loss of power, overheating, fuel vapor lock, and unintended machine operation,
including, but not limited to, improper clutch engagement. Alternative fuels may also cause premature deteriora-
tion of fuel lines, gaskets, carburetors and other engine components.
Fuel Requirements
Gasoline - Use 89 Octane [R+M/2] (mid grade or higher) gasoline known to be good quality. Gasoline may contain
up to 10% Ethanol (grain alcohol) or 15% MTBE (methyl tertiary-butyl ether). Gasoline containing methanol (wood
alcohol) is NOT approved.
2 Stroke Mixture Oil - A 2-stroke engine oil meeting ISO-L-EGD (ISO/CD 13738) and J.A.S.O. FD standards must
be used. Shindaiwa One 2-Stroke Oil is strongly recommended as it meets this standard and is specically formu-
lated for use in all Shindaiwa 2-stroke engines. Engine problems due to inadequate lubrication caused by failure to
use an ISO-L-EGD (ISO/CD 13738) and J.A.S.O. FD certied oil will void the engine warranty.
Mixing Fuel
For increased engine protection, Shindaiwa recommends using Shindaiwa Red Armor engine oil to protect the
engine from harmful carbon build up, maintain engine performance, and increase engine life. Red Armor engine
oil exceeds ISO-L-EGD and J.A.S.O. FD performance requirements.
Examples of 50:1 mixing quantities
IMPORTANT!
Shindaiwa One 2-Stroke oil or Red Armor engine oil may be mixed at 50:1
ratio for application in all Shindaiwa engines sold in the past, regardless of
ratio specied in those manuals.
IMPORTANT!
Stored fuel ages. Do not mix more fuel than you expect to use in thirty (30)
days, ninety (90) days when a fuel stabilizer is added.
WARNING!
A standard grass trimmer with a loop handle should NEVER be
operated with blade-type attachments. For blade use the trimmer must be
tted with a bicycle-type handlebar or a barrier bar that is located in front of
the operator to reduce the risk of the operator from coming in contact with
the cutting attachment (per ANSI B175.3). When using a blade, the unit
must also be equipped with a harness or strap.