Honda HHT31S Owner's Manual page 43

Fuel Filter and Fuel Tank Cleaning
1. Remove the fuel tank cap, and empty the fuel tank into
an approved gasoline container. Use a funnel to avoid
spilling gasoline.
2. Pull the fuel filter out through the fuel filler neck by
hooking the black fuel supply tube with a piece of wire,
such as a partly straightened paper clip.
3. Inspect the fuel filter. If the fuel filter is dirty, remove it
and wash it with nonflammable solvent. Be careful to
avoid damaging the filter.
Replace the filter if it is damaged or excessively dirty.
4. Rinse sediment from the fuel tank with nonflammable
solvent.
5. Insert the fuel filter in the fuel tank, and install the fuel
tank cap.
Cooling Fin Inspection
Inspect the engine cooling fins, and clean out any dirt and debris.
On both the HHT25S and HHT31S, it is necessary to remove the top cover. Removal procedures are
located on page 37 for HHT25S and page 38 for the HHT31S.
ENGINE COOLING FINS
SERVICING YOUR HONDA TRIMMER
FUEL SUPPLY TUBE
(black)
ENGINE COOLING FINS
FUEL
FILTER
41