Honda CRF230F 2006 Owner's Manual page 53

Maintenance Safety
Read the instructions before you begin, and
make sure you have the tools and skills
required.
To help prevent the motorcycle from falling
over, park it on a firm, level surface, using
the side stand or a maintenance stand to
provide support.
To reduce the possibility of a fire or
explosion, be careful when working around
gasoline. Use only a non-flammable (high
flash point) solvent such as kerosene not
gasoline to clean parts. Keep cigarettes,
sparks, and flames away from all fuel-
related parts.
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Servicing Your Honda