Honda CRF230F Owner's Manual page 40

Tube Repair and Replacement
If a tube is punctured or damaged, you should
replace it as soon as possible. A tube that is
repaired may not have the same reliability as
a new one, and it may fail while you are riding.
If you need to make a temporary repair by
patching a tube or using an aerosol sealant,
ride cautiously at reduced speed and have
the tube replaced before you ride again. Any
time a tube is replaced, the tyre should be
carefully inspected as described on page 27.
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