Honda FR750, Owner'S Manual

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Gasolines containing alcohol
Gasoline spoils very quickly depending on factors such as light
exposure, temperature and time.
In worst cases, gasoline can be contaminated within 30 days.
Such damage due to spoiled fuel is disallowed from coverage by the
warranty.
To avoid this please strictly follow these recommendations:
Only use specified gasoline (see page ).
Use fresh and clean gasoline.
To slow deterioration, keep gasoline in a certified fuel container.
If long storage (more than 30 days) is foreseen, drain fuel tank and
carburetor (see page
).
Using contaminated gasoline can seriously damage the engine
(carburetor clogged, valve stuck).
If you decide to use a gasoline containing alcohol (gasohol), be sure it’s
octane rating is at least as high as that recommended by Honda. There
are two types of ‘‘gasohol’’: one containing ethanol, and the other
containing methanol.
Do not use gasohol that contains more than 10% ethanol. Do not use
gasoline containing methanol (methyl or wood alcohol) that does not
also contain cosolvents and corrosion inhibitors for methanol.
Never use gasoline containing more than 5% methanol, even if it has
cosolvents and corrosion inhibitors.
If you notice any undesirable operating symptoms while using a
gasoline that contains alcohol, or one that you think contains
alcohol, switch to a gasoline that you know does not contain alcohol.
Before buying gasoline from an unfamiliar station, first determine if
the gasoline contains alcohol; if it does, find out the type and
percentage of alcohol used.
Honda cannot endorse the use of gasoline containing methanol
since evidence of its suitability is as yet incomplete.
Fuel system damage or engine performance problems resulting
from the use of gasoline that contains alcohol is not covered under
the warranty.
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