Operation Manual

4. FUEL
Your engine ‘,” cJesigned to use any gasoline that has a pump octane
number (R ) of 86 or higher, or that has a research oc-
tane number if 91 or higher. Gasoline pumps at service station normally
display the pump octane number.
We recommend that you use unleaded fuel because it produces fewer
engine and spark plug deposits and extends the life of exhaust system
components.
Never use stale or contaminated gasoline or an oil/gasoline mixture. Avoid
getting dirt, dust or water in the fuel tank. Use of a lower octane gasoline
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 gasoline. If spark knock or pinging
persists, consult your authorized Honda dealer. Failure to do so is con-
sidered 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.
l Gasoline is extremely flammable and is explosive under certain
conditions.
l Refuel in a well-ventilated area with the engine stopped. Do not smoke
or allow flames or sparks in the area where the engine is refueled or
where gasoline is stored.
l Do not overfill the fuel tank (there should be no fuel in the filler neck).
After refueling, make sure the tank cap is closed properly and securely.
l 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.
l Avoid repeated or prolonged contact with skin or breathing of vapor.
KEEP OUT OF REACH OF CHILDREN.
Fuel tank capacity: GXl lo.....
2.5 &’ (0.66 US Gal, 0.55 Imp Gal.)
GX140 . . . . . 3.6 e (0.95 US Gal, 0.79 Imp Gal.)
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