Honda HHB25 Owner's Manual page 51

3. Pull out the fuel filter with the mechanic's wire from the fuel filler
neck gently.
4. Check the fuel filter for contamination. If the fuel filter is dirty, wash
it gently with non-flammable or high flash point solvent. If the fuel
filter is excessively dirty, replace it.
FUEL FILTER
FUEL FILTER
5. Reinstall the fuel filter into the fuel tank and tighten the fuel tank cap
securely.
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