Thump TSK50cc, Owner'S Manual

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41
Fuel
FUEL RECOMMENDATION
Type Unleaded
Pump Octane Number 86 (or higher)
Your engine is designed to use any unleaded gasoline that has a pump
octane number of 86 or higher. Gasoline pumps at service stations
normally display the pump octane number.
Use of lower octane gasoline can cause persistent ‘‘pinging’’ or ‘‘spark
knock’’ (a louder rapping noise) which, if severe, can lead to engine
damage. (Light pinging experienced while operating under a heavy load,
such as climbing a hill, is no cause for concern.)
If pinging or spark knock occurs at a steady engine speed under normal
load, change brands of gasoline. If pinging or spark knock persists,
consult your
Certified Motorcycle Mechanic
.
Use only unleaded fuel in your Thumpstar. If you ride your Thumpstar in a
country where leaded fuel might be available, take precautions to use only
unleaded fuel.
Never use stale or contaminated gasoline or an oil/gasoline mixture. Avoid
getting dirt, dust, or water in the fuel tank.
Getting dirt or dust on your fuel can block you Carburetor which can
cause it to leak and cause other problems as well.
WARNING
Gasoline is highly flammable
and explosive. You can be
burned or seriously injured
when handling fuel. Stop the
engine and keep heat, sparks
and flame away. Handle fuel
only outdoors. Wipe up spills
immediately.