Honda ST1100 1996+ Owner's Manual page 22

Use unleaded or low-lead petrol with a research octane number of 91 or higher. We
recommend that you use unleaded petrol because it produces fewer engine and spark plug
deposits and extends the life of exhaust system components.
FOR AUSTRALIA ONLY:
Use unleaded petrol with a research octane number of 91 or higher.
Never use stale or contaminated petrol or an oil/petrol mixture. Avoid getting dirt, dust or
water in the fuel tank. Use of a lower octane petrol can cause persistent "pinging" or heavy
"spark knock" (a metallic rapping noise) which, if severe, can lead to engine damage.
CAUTION:
If "spark knock" or "pinging" occurs at a steady engine speed under normal load, change
brands of petrol. If spark knock or pinging persists, consult your authorized Honda dealer.
Failure to do so is considered misuse, and damage caused by misuse is not covered by
Honda's Limited Warranty.
Occasionally you may experience light spark knock while operating under heavy loads. This
is no cause for concern, it simply means your engine is operating efficiently. Install the fuel
fill cap by turning it clockwise. Be sure to properly route the hose attached to the top of the
cap. Close the fuel filler compartment lid with the key inserted and turned clockwise, then
turn the key counterclockwise to lock the lid.
Petrol is extremely flammable and is explosive under certain conditions. Refuel in a

well-ventilated area with the engine stopped. Do not smoke or allow flames or sparks
in the area where petrol is stored or where the fuel tank is refueled.
Do not overfill the tank (there should be no fuel in the filler neck). After refueling,

make sure the tank cap is closed properly and securely.
Be careful not to spill fuel when refueling. Spilled fuel or fuel vapor may ignite. If any

fuel is spilled, make sure the area is dry before starting the engine.
Avoid repeated or prolonged contact with skin or breathing of vapor. KEEP OUT OF

REACH OF CHILDREN.
Petrol Containing Alcohol
If you decide to use a petrol containing alcohol (gasohol), be sure its 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 petrol containing methanol (methyl or wood alcohol) that does not also
contain cosolvents and corrosion inhibitors for methanol. Never use petrol containing more
than 5% methanol, even if it has cosolvents and corrosion inhibitors.
- Copyright for this owners manual only ©2011 LIFRASCHAL -
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