3. PRE-OPERATION CHECK
m To prevent accidental start-up, turn the engine switch OFF,
and disconnect the spark plug cap before performing the pre-operation
inspection.
FUEL LEVEL
Unscrew the fuel cap. Check the fuel level.
Your engine is designed to use any gasoline that has a pump oc-
tane number (v
) of 86 or higher, or that has a research octane number
of 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 w’ater in the fuel tank. Use of a lower octane gasoline
can cause persistent “pinging” or heavy
“spark knock” (a metallic rap-
ping noise) which, if severe, can lead to engine damage.
m 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.
After refueling, be sure to tighten the fuel tank cap firmly.
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